JANUARY 1984 - JUNE 1996
88 citations from AGRICOLA
by
Joe Makuch
Water Quality Information Center
**************************************************************
This electronic bibliography is intended primarily to provide
awareness of recent investigations and discussions of a topic.
Coverage is not in-depth and exhaustive. The inclusion or
omission of a particular publication or citation should not be
construed as endorsement or disapproval.
Send suggestions for electronic bibliographies on water-related
topics to wqic@nal.usda.gov
PLEASE NOTE: Information on document delivery services,
interlibrary loan requests and copyright restrictions is appended
to this bibliography. If this bibliography is copied and/or
distributed, please include this information in all copies.
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PRECISION AGRICULTURE
1. Aggregate analysis of site-specific pollution problems: the
case of groundwater contamination from agriculture.
Opaluch, J. J.; Segerson, K.
Northeast-J-Agric-Resour-Econ v.20, p.83-97. (1991).
Paper submitted in response to call for papers on the theme "The
Effects of Agricultural Production on Environmental Quality.".
Descriptors: groundwater-; contamination-; water-pollution;
agricultural-sector; agricultural-policy; microeconomic-analysis;
aggregate-data; site- factors; spatial-distribution;
information-systems; mathematical-models;
microparameter-distribution-models;
geographical-information-systems-gis; nonpoint-pollution
NAL Call No.: HD1773.A2N6
***************************************************************
2. Airborne video for near-real-time vegetation mapping.
Graham, L. A.
J-For v.91, p.28-32. (1993).
Includes references.
Descriptors: vegetation-; mapping-; aerial-photography; arizona-;
global-positioning-system
NAL Call No.: 99.8-F768
**************************************************************
3. Assessing the spatial variability of organic matter.
McCauley, J. D.; Engel, B. A.; Scudder, C. E.; Morgan, M. T.;
Elliott, P. W.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Winter 1993. (93-1531/93-1560) 14 p.
Paper presented at the "1993 International Winter Meeting
sponsored by the American Society of Agricultural Engineers,"
December 13- 17, 1993, Chicago, Illinois.
Descriptors: soil-organic-matter; sensors-; field-tests;
variation-; site-factors; site-specific-farming
NAL Call No.: 290.9-Am32P
**************************************************************
4. Bringing technology down to earth: a GPS consumer's guide.
Lance, K.
J-For v.91, p.17-19. (1993).
Descriptors: remote-sensing; technology-; computer-software;
global-positioning-system
NAL Call No.: 99.8-F768
*************************************************************
5. Cell size selection for site-specific crop management.
Han, S.; Hummel, J. W.; Goering, C. E.; Cahn, M. D.
Trans-ASAE v.37, p.19-26. (1994).
Includes references.
Descriptors: site-factors; crop-management; soil-properties;
linear-models; mathematics-; mean-correlation-distance
Abstract: For site-specific crop management (SSCM), fields are
viewed as collections of small regions (cells) in which soil
properties are nearly uniform. Inputs to the field are adjusted
on a cell-by-cell basis. The selection of cell size is an
important step in SSCM. In this article, a mean correlation
distance (MCD) is developed by geostatistical analysis. The MCD
can be used as the upper limit of cell size. A lower limit of
cell size is also considered A sample MCD determination for soil
moisture and nitrate of one particular field is included.
NAL Call No.: 290.9-Am32T
**************************************************************
6. Concepts of variable rate technology with considerations for
fertilizer application.
Sawyer, J. E.
J-prod-agric v.7, p.195-201. (1994).
Includes references.
Descriptors: crop-production; fertilizers-; application-rates;
variation-; optimization-; efficiency-; profitability-
NAL Call No.: S539.5.J68
**************************************************************
7. Economics of direct seeding cabbage to a stand using precision
cultural systems.
Bergeron, P. E.; Parish, R. L.; Bracy, R. P.; Hinson, R. A.;
Boudreaux, J. E.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Summer 1992. (921074) 9 p.
Paper presented at the "1992 International Summer Meeting
sponsored by The American Society of Agricultural Engineers,"
June 21-24, 1992, Charlotte, North Carolina.
Descriptors: cabbages-; farming-systems; economic-impact
NAL Call No.: 290.9-Am32P
*************************************************************
8. Electromagnetic induction as a mapping aid for precision
farming.
Jaynes, D. B.
Clean water, clean environment, 21st century team agriculture,
working to protect water resources conference proceedings, March
5-8, 1995, Kansas City, Missouri /. St. Joseph, Mich. : ASAE,
c1995.. v. 3 p. 153-156.
Descriptors: low-input-agriculture; farming-; fields-; maps-;
mapping-; mapping-units; soil-analysis; electrical-conductivity;
atrazine-; sorption-; iowa-; soil-mapping; soil-capability-maps
NAL Call No.: TD365.C54-1995
*************************************************************
9. Environmentally sound agricultural production systems through
site-specific farming.
Engel, B. A.; Gaultney, L. D.
PAP-AMER-SOC-AGRIC-ENG. St. Joseph, Mich. : The Society. Winter
1990. (90-2566) 7 p.
Paper presented at the "1990 International Winter Meeting",
December 18-21, 1990, Chicago, Illinois.
Descriptors: agricultural-production; environmental-protection;
information-systems; environmental-impact;
geographic-information-systems
NAL Call No.: 290.9-AM32P
*************************************************************
10. Evaluation of the NAVCORE-1 global positioning system.
Jasumback, A. E.
Eng-Field-Notes-U-S-Dep-Agric-For-Serv-Eng-Staff. Washington,
D.C. : The Staff. Jan/Feb 1989. v. 21 p. 7-19. ill.
Descriptors: satellites-; canopy-; position-; longitude-;
latitude-; position-locating-equipment; course;
acquisition-code-receiver
NAL Call No.: aSD388.A1U52
*************************************************************
11. External flute seed metering evaluation related to site
specific farming.
Bashford, L. L.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Winter 1993. (93-8517) 15 p.
Paper presented at the "1993 International Winter Meeting
sponsored by the American Society of Agricultural Engineers,"
December 14- 17, 1993, Chicago, Illinois.
Descriptors: sowing-rates; seed-drills; soybeans-; wheat-;
metering-
NAL Call No.: 290.9-Am32P
*************************************************************
12. Farm by the foot.
Reichenberger, L.; Russnogle, J.
Farm-J v.113, p.11-15. ill., maps. (1989).
Descriptors: soil-types; fertilizer-requirement-determinatio;
fertilizer-application; fields-; soil-survey-and-mapping;
farming-systems; economic- evaluation; prescription-farming
NAL Call No.: 6-F2212
*************************************************************
13. Farming soils, not field: a strategy for increasing
fertilizer profitability.
Carr, P. M.; Carlson, G. R.; Jacobsen, J. S.; Nielsen, G. A.;
Skogley, E. O.
J-prod-agric v.4, p.57-61. (1991).
Includes references.
Descriptors: alternative-farming; fields-; soil-fertility;
crop-yield; soil-variability; fertilizers-; application-rates;
variation-; profitability-; montana-; precision-farming
Abstract: Farm fields are traditionally fertilized as one
homogeneous soil unit. Most fields, however, contain two or more
soils with different crop yield potentials. This study was
conducted to (i) measure crop yield differences between
contrasting soils within fields, and (ii) compare the economics
of "farming soils, not fields," where contrasting soils in a
field receive different vs. uniform rates and formulations of
fertilizer. Crop yield variability studies were conducted along
1600 ft transects across several soil units in each of four
fields during 1987. Grain yield, test weight, and returns over
variable costs varied greatly among soil units in each field (P
<0.05). Soil fertility studies also revealed differences in
grain yield, test weight, and returns among soil units in five
fields during 1987 and 1988. Fertility studies indicated yields
were similar for small grains when recommended fertilizer
treatments were applied as soil unit treatments rather than as a
field treatment. Returns were $2.06 to $5.14 greater per acre
for the soil treatment than for the field treatment in three of
five fields, but overall, the returns were not significantly
different. A recommended fertilizer treatment was not always the
optimum treatment, however. In two fields, additional returns of
$21.68 to $23.51/acre resulted when optimum soil treatments were
applied rather than the field treatment. The data reveal the
importance of appropriate crop yield goals, accurate soil tests,
and reliable fertilizer recommendations when developing a
strategy for generating greater returns by farming soil, not
fields. Given these caveats, our work suggests that farming
soils, not fields will increase fertilizer profitability.
NAL Call No.: S539.5.J68
*************************************************************
14. Feasibility of site-specific nutrient and pesticide
applications.
Hayes, J. C.; Overton, A.; Price, J. W.
Environmentally sound agriculture proceedings of the second
conference 20-22 April 1994 / p.62-68. (1994).
Includes references.
Descriptors: alternative-farming; fertilizers-; pesticides-;
application-methods; application-rates; spatial-variation;
geographical-information-systems; systems-; feasibility-;
economic-evaluation; prescription-farming;
global-positioning-systems; precision-application
NAL Call No.: S589.7.E57-1994
*************************************************************
15. Field experience with differential GPS.
Shropshire, G.; Peterson, C.; Fisher, K.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Summer 1993. (931073) 12 p.
Paper presented at the "1993 International Summer Meeting
sponsored by The American Society of Agricultural Engineers and
The Canadian Society of Agricultural Engineering, June 20-23,
1993, Spokane, Washington.
Descriptors: wheat-; remote-sensing; yields-; soil-properties;
fertilizers-; application-
NAL Call No.: 290.9-Am32P
*************************************************************
16. A field information system for site-specific crop management.
Han, S.; Goering, C. E.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Winter 1992. (923608) 27 p.
Paper presented at the "1992 International Winter Meeting
sponsored by the American Society of Agricultural Engineers,"
December 15- 18, 1992, Nashville, Tennessee.
Descriptors: crop-management; information-systems
NAL Call No.: 290.9-Am32P
*************************************************************
17. Field navigation using the global positioning system (GPS).
Larsen, W. E.; Tyler, D. A.; Nielsen, G. A.
Am-Soc-Agric-Eng-Microfiche-Collect. St. Joseph, Mich. : The
Society. 1988. (fiche no. 88-1604) 10 p. ill.
Paper presented at the 1988 Winter Meeting of the American
Society of Agricultural Engineers. Available for purchase from:
The American Society of Agricultural Engineers, Order Dept.,
2950 Niles Road, St. Joseph, Michigan 49085. Telephone the Order
Dept. at (616) 429-0300 for information and prices.
Descriptors: farm-machinery; field-trips; position-; sensors-;
satellites-; automatic-guidance; geography-; information-services
NAL Call No.: FICHE-S-72
*************************************************************
18. Field soil sampling density for variable rate fertilization.
Franzen, D. W.; Peck, T. R.
J-prod-agric v.8, p.568-574. (1995).
Includes references.
Descriptors: fields-; soil-testing; phosphorus-; potassium-;
nutrient-availability; representative-sampling; determination-;
samples-; density-; soil- variability; soil-fertility;
fertilizers-; application-rates; variation-; alternative-farming;
precision-farming
Abstract: Variable rate fertilizer application being commercially
performed today is most often based on a soil test map. The
sampling density used to develop a map is often selected without
background information regarding field soil test variability. The
objective of this study was to determine how many samples should
be taken from a field in order to locate and describe major areas
of fertility affecting variable rate fertilizer applications.
Two 40 acre fields were sampled in an 82.5 ft grid each fall from
1989 to 1992. Soil pH, Bray P1, and available K levels were
determined on each sample and maps were made using inverse
distance squared estimates. Data were taken from the samplings to
represent a 165 ft and 330 ft grid pattern. Maps were developed
from these less dense grids and compared with the 82.5 ft grid
values. In 1992, a separate 220 ft grid sampling was taken. The
220 ft grid estimates were more highly correlated with the 82.5
ft grid values than were the 330 ft grid estimates, however,
membership of 220 ft and 330 ft grid estimates within soil test
categories were similar. Fertilizer P and K applications were
made in one field following the 1992 sampling. Spring 1993
sampling showed the success of the 220 ft grid in directing a
variable rate application of P and K. Comparisons to theoretical
P and K applications directed by a 330 ft grid map showed the
superiority of the 220 ft grid compared with the 330 ft grid.
NAL Call No.: S539.5.J68
*************************************************************
19. A fuzzy logic yield simulator for prescription farming.
Ambuel, J. R.; Colvin, T. S.; Karlen, D. L.
Trans-ASAE v.37, p.1999-2009. (1994).
Includes references.
Descriptors: farming-; farming-systems; simulation-models;
optimization-; low-input-agriculture; farm-inputs; fertilizers-;
seeds-; agricultural- chemicals; application-methods; fields-;
spatial-variation; expert-systems; soil-properties; crop-yield;
yield-response-functions; soil-fertility; site-spectific-farming;
optimal-application-methods
Abstract: Interest in prescription farming has grown as the
technology necessary for its implementation has become available.
The central concept of prescription farming is that materials
(chemicals, fertilizers, seeds) are optimally applied as a
function of position within the field. Therefore, profits are
maximized and potential adverse environmental effects are
minimized. Our objective was to describe how fuzzy logic could be
used to develop a crop yield simulator for assessing spatial
variability with sufficient accuracy for optimizing application
rates. The method is based on predictive yield models developed
using field-scale research techniques. Two conceptual, expert
system models were developed using fuzzy logic rules. In one
model, chemical and physical characteristics of the soil were
measured and combined with local meteorological data as input
parameters. In the other model, soil properties were estimated
rather than measured. The fuzzy logic rule sets were implemented
using a spreadsheet. Rule sets were developed to simulate yields
for two 16-ha fields in central Iowa. Predicted yields were then
compared with measured yields for those fields. Our results
indicate that on a relative basis, predicted yields generally
agreed with measured yields.
NAL Call No.: 290.9-Am32T
*************************************************************
20. Geographic information systems in agronomy.
Petersen, G. W.; Bell, J. C.; McSweeney, K.; Nielsen, G. A.;
Robert, P. C.
Adv-agron. San Diego, Calif. : Academic Press. 1995. v. 35 p.
67-111.
Includes references.
Descriptors: agronomy-; geographical-information-systems;
remote-sensing; farmland-; farming-; fields-;
low-input-agriculture; landscape-; mapping-; literature-reviews;
site-specific-farming; soil-mapping
NAL Call No.: 30-Ad9
*************************************************************
21. Global navigation satellite systems (GNSS).
Kruger, G.; Springer, R.; Lechner, W.
Comput-electron-agric v.11, p.3-21. (1994).
In the special issue: Global positioning systems in agriculture /
edited by H. Auernhammer.
Descriptors: satellites-; radar-; automatic-guidance;
technology-; position-; usa-; ussr-; global-positioning-systems;
navstar-; glonass-
NAL Call No.: S494.5.D3C652
*************************************************************
22. Global positioning application.
Kincheloe, S.
Proc-annu-meet-Fert-Ind-Round-Table p.99-101. (1994).
Meeting held November 7-9, 1994, Lake Buena Vista, Florida.
Descriptors: fertilizers-; placement-; optimization-; mapping-;
computer-techniques; fertilizer-requirement-determination;
farming-systems; sustainability-; best-management-practices
NAL Call No.: 57.09-F41
*************************************************************
23. Global positioning satellites: signals from space to the
field.
Leslie, J.
S-D-farm-home-res v.45, p.13-14. (1994).
Descriptors: satellites-; satellite-surveys; farming-; costs-;
computer-techniques
NAL Call No.: 100-So82S
*************************************************************
24. Global positioning system applications for site-specific
farming research.
Harrison, J. D.; Birrell, S. J.; Sudduth, K. A.; Borgelt, S. C.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Winter 1992. (923615) 14 p.
Paper presented at the "1992 International Winter Meeting
sponsored by the American Society of Agricultural Engineers,"
December 15- 18, 1992, Nashville, Tennessee.
Descriptors: soil-testing; grain-crops; harvesting-
NAL Call No.: 290.9-Am32P
*************************************************************
25. Global positioning systems: a guide for land managers and
consultants.
Lass, L. W.; Callihan, R. H.
Bull-Univ-Ida,-Coll-Agric. Moscow : Idaho Agricultural Experiment
Station, 1953-. May 1994. (EXT 761) 8 p.
Includes references.
Descriptors: telemetry-; radio-; transmission-; satellites-;
mapping-; computer-software; data-processing; data-collection;
accuracy-
NAL Call No.: 100-Id14
*************************************************************
26. GPS and GIS for weed surveys and management.
Lass, L. W.; Callihan, R. H.
Weed-technol v.7, p.249-254. (1993).
Paper presented at the "Symposium on Geographic Information
Systems," February 11, 1992, Orlando, Florida.
Descriptors: weeds-; satellite-surveys; infestation-;
geographical-information-systems; weed-control;
satellite-imagery; global-positioning-systems; delimiting-surveys
NAL Call No.: SB610.W39
*************************************************************
27. GPS and vertical control.
Mahon, T.
Eng-ext-ser. West Lafayette, Ind. : Purdue University, Dept. of
Engineering Extension. 1994. (165) p. 57-65.
Proceedings of the 80th Annual Road School held March 1-3, 1994,
West Lafayette, Indiana.
Descriptors: physical-geography; altitude-; satellites-;
mapping-; computer-techniques; information-systems; indiana-
NAL Call No.: 290.9-P972
*************************************************************
28. GPS for yield mapping on combines.
Auernhammer, H.; Demmel, M.; Muhr, T.; Rottmeier, J.; Wild, K.
Comput-electron-agric v.11, p.53-68. (1994).
In the special issue: Global positioning systems in agriculture /
edited by H. Auernhammer.
Descriptors: crop-yield; mapping-; combine-harvesters;
detection-; technology-; computer-techniques; automatic-guidance;
global-positioning-system
NAL Call No.: S494.5.D3C652
*************************************************************
29. GPS in a basic rule for environmental protection in
agriculture.
Auernhammer, H.; Muhr, T.
Automated agriculture for the 21st century proceedings of the
1991 symposium, 16-17 December 1991, Chicago, Illinois. St.
Joseph, Mich. : American Society of Agricultural Engineers,
c1991.. p. 394-402.
Includes references.
Descriptors: agriculture-; environmental-protection;
farm-equipment; computer-techniques; germany-;
global-positioning-system
NAL Call No.: S671.3.A97-1991
*************************************************************
30. High-precision agriculture is an excellent tool for
conservation of natural resources.
Wallace, A.
Commun-soil-sci-plant-anal v.25, p.45-49. (1994).
In the special issue devoted to perspectives on relationships
between sustainability of soil and the environment / edited by A.
Wallace.
Descriptors: alternative-farming; low-input-agriculture;
farm-inputs; efficiency-; agricultural-production;
environmental-impact; sustainability-; resource-conservation
NAL Call No.: S590.C63
*************************************************************
31. Improving fertilizer and chemical efficiency through "high
precision farming".
Munson, R. D.; Runge, C. F. C. F.
St. Paul, Minn. : Center for International Food and Agricultural
Policy, University of Minnesota, [1990] viii, 96 p. : ill., maps.
"September 10, 1990.".
Descriptors: Fertilizers-; Agricultural-chemicals;
Farm-management
NAL Call No.: S633.M85
*************************************************************
32. Improving fertilizer and chemical efficiency through "high
precision farming".
Munson, R. D.; Runge, C. F. C. F.; University of Minnesota.
Center for International Food and Agricultural Policy.
St. Paul, Minn. : Center for International Food and Agricultural
Policy, University of Minnesota, [1990] viii, 96 p. : ill..
"September 10, 1990.".
Descriptors: Fertilizers-; Agricultural-chemicals;
Farm-management
NAL Call No.: NBU S633-M84-1990
*************************************************************
33. Improving site-specific fertilizer distribution in peasant
agriculture in Zimbabwe.
Weil, R. R.; Mukurumbira, L. M.; Butai, P. C.
Trop-Agric v.68, p.186-190. (1991).
Includes references.
Descriptors: zea-mays; fertilizer-requirement-determination;
foliar-diagnosis; plant-nutrition; site-factors; soil-fertility;
soil-properties; spreading-; zimbabwe-
NAL Call No.: 26-T754
*************************************************************
34. In-field location using GPS for spatially variable field
operations.
Stafford, J. V.; Ambler, B.
Comput-electron-agric v.11, p.23-36. (1994).
In the special issue: Global positioning systems in agriculture /
edited by H. Auernhammer.
Descriptors: soil-properties; spatial-variation; location-theory;
evaluation-; position-; satellites-; automatic-guidance;
global-positioning-system
NAL Call No.: S494.5.D3C652
*************************************************************
35. Index for describing spatial variability in prescription
farming.
McCauley, J. D.; Whittaker, A. D.
Trans-ASAE v.36, p.691-693. (1993).
Includes references.
Descriptors: fertilizers-; application-to-land; mechanization-;
spatial-variation
Abstract: A scalar descriptor of the spatial variability of
fertilizer application maps is presented. It was designed with
regard to the degree of difficulty an applicator may have in
matching prescribed rates for site-specific application and m be
useful for comparative studies of field scenarios.
NAL Call No.: 290.9-Am32T
*************************************************************
36. Integration of airborne video, global positioning system and
geographic information system technologies for detecting and
mapping two woody legumes on rangelands.
Everitt, J. H.; Escobar, D. E.; Villarreal, R.; Alaniz, M. A.;
Davis, M. R.
Weed-technol v.7, p.981-987. (1993).
Includes references.
Descriptors: acacia-farnesiana; acacia-rigidula; rangelands-;
woody-weeds; brush-control; detection-; remote-sensing;
video-recordings; geographical- information-systems; mapping-;
range-management; imagery-; texas-
NAL Call No.: SB610.W39
*************************************************************
37. LEPA irrigation management for corn.
Howell, T. A.; Yazar, A.; Schneider, A. D.; Dusek, D. A.;
Copeland, K. S.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Summer 1994. (94-2091/94-2119) 23 p.
Paper presented at the "1994 International Summer Meeting
sponsored by the American Society of Agricultural Engineers,"
June 20-23, 1994, Kansas City, Missouri.
Descriptors: zea-mays; crop-management; center-pivot-irrigation;
soil-water-content; crop-yield; yield-components;
water-use-efficiency; clay-loam- soils;
low-energy-precision-application-irrigation
NAL Call No.: 290.9-Am32P
*************************************************************
38. Living mulch options for precision management of
horticultural crops.
William, R. D.
Ext-Circ-Oreg-State-Univ-Ext-Serv. Corvallis, Or. : The Service.
July 1987. (1258) 6 p.
Descriptors: horticultural-crops; crop-management; live-mulches;
grass-barriers; oregon-
NAL Call No.: 275.29-OR32C
*************************************************************
39. Micronutrient focus in modern farming.
Stephen, R. M.
Proc-annu-meet-Fert-Ind-Round-Table p.62-65. (1994).
Meeting held November 7-9, 1994, Lake Buena Vista, Florida.
Descriptors: alternative-farming; crops-;
trace-element-fertilizers; application-rates; soil-test-values;
crop-yield; correlation-; fertilizer-requirement- determination;
illinois-; precision-agriculture
NAL Call No.: 57.09-F41
*************************************************************
40. Opinion: the need for site-specific legal research on
sustainable farming practices and systems: can law and goverment
institutions become more effective by consulting with farmers
and their land.
Wilder, J. R.
J-sustain-agric v.4, p.91-102. (1994).
Includes references.
Descriptors: farming-systems-research; sustainability-; law-;
government-
NAL Call No.: S494.5.S86S8
*************************************************************
41. Origins of GPS surveying.
Counselman, C. C.; Massachusetts Institute of Technology.
Cambridge, MA : Massachusetts Institute of Technology, [1991] 24
p. : ill..
"26 April 1991.".
Descriptors: Geodesy-; Hyperbolic-navigation; Interoferometers-
NAL Call No.: QB301.C68-1991
*************************************************************
42. PC-MAPS: A tool for site specific crop management.
Motz, D. S.; Searcy, S. W.; Neuhaus, P. E.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Winter 1993. (93-3556) 28 p.
Paper presented at the "1993 International Winter Meeting
sponsored by the American Society of Agricultural Engineers,"
December 14- 17, 1993, Chicago, Illinois.
Descriptors: crop-management; computer-software; data-analysis
NAL Call No.: 290.9-Am32P
*************************************************************
43. Plant movement and seed dispersal of Russian thistle (Salsola
iberica).
Stallings, G. P.; Thill, D. C.; Mallory Smith, C. A.; Lass, L. W.
Weed-sci v.43, p.63-69. (1995).
Includes references.
Descriptors: salsola-iberica; weed-biology; seed-dispersal;
spatial-distribution; movement-;
geographical-information-systems; herbicide-resistance;
chlorsulfuron-; biotypes-; washington-;
global-positioning-systems
Abstract: Russian thistle plant movement and seed dispersal were
studied in 1991 and 1992 by placing Russian thistle plants in the
center of wheat fields in eastern Washington. Three adjacent
site treatments, with 24 plants on each site, were used each
year; wheat stubble, summerfallow planted to winter wheat, and a
"stationary" site. Plants in the "stationary" site were anchored
to the ground to prevent tumbling. Plants in the stubble and
summerfallow sites were allowed to tumble naturally. Individual
plant movement was monitored and recorded weekly by satellite
global positioning systems technology. Average estimated seed
number per plant at the beginning of the experiment was 57,400 in
1991 and 66,000 in 1992. The direction plants moved correlated
highly with wind direction. Some plants moved a maximum distance
of 4069 m in 6 wks, while other plants moved only 60 m because
of variable winds and being compressed by snow or frozen into
wheat stubble. Average percentage seed loss in 1991 and 1992 for
stationary plants was 15 and 26%, and for tumbling plants was 48
and 66%, respectively.
NAL Call No.: 79.8-W41
*************************************************************
44. A precision cultural system for vegetables in Louisiana.
Parish, R. L.; Bracy, R. P.; Mulkey, W. A.
PAP-AMER-SOC-AGRIC-ENG. St. Joseph, Mich. : The Society. Winter
1989. (89-1566) 12 p.
Paper presented at the 1989 International Winter Meeting,
December 12-15, 1989, New Orleans, Louisiana.
Descriptors: vegetables-; cultural-methods; crop-production;
commercial-farming; louisiana-
NAL Call No.: 290.9-AM32P
*************************************************************
45. Precision farming.
Emmert, B.; Gates, J.; Makuch, J.
Agri-top. Beltsville, Md. : National Agricultural Library, 1990-.
Jan 1994. (95-01) 19 p.
Descriptors: alternative-farming; crop-management;
sustainability-
NAL Call No.: aZ5073.A37
*************************************************************
46. Precision farming: an introduction.
Blackmore, S.
Outlook-agric. Oxon : C.A.B. International. 1994. v. 23 (4) p.
275-280.
Includes references.
Descriptors: farming-systems; farm-management;
information-systems; technology-
NAL Call No.: 10-Ou8
*************************************************************
47. Precision farming: an overview.
Blackmore, S.
Agric-eng v.49, p.86-88. (1994).
Descriptors: cropping-systems; geographical-information-systems;
expert-systems; farm-machinery; computer-techniques; crop-yield;
fields-
NAL Call No.: 58.9-In7
*************************************************************
48. Precision farming data management using geographic
information systems.
Usery, E. L.; Pocknee, S.; Boydell, B.
Photogramm-eng-remote-sensing v.61, p. 1383-1391. (1995).
Special Issue: GIS.
Descriptors: alternative-farming; sustainability-;
information-processing; geographical-information-systems
NAL Call No.: 325.28-P56
*************************************************************
49. Precision farming: farmers using satellites, computers, and
soils tests to protect ground water.
Horsley, S. W.
Ground-water-monit-remediat. Dublin, OH : Ground Water Pub. Co.,
c1993-. Fall 1995. v. 15 (4) p. 66.
Descriptors: farming-; agricultural-chemicals; farm-inputs;
pollutants-; groundwater-; soil-testing; computer-analysis;
geographical-information- systems; satellites-
NAL Call No.: GB1001.G76
*************************************************************
50. Precision farming: harnessing technology.
Christensen, L.; Krause, K.
Agric-outlook p.18-19. (1995).
Descriptors: farm-management; crop-production;
environmental-protection; crop-yield; field-size; usa-;
site-specific-farming
NAL Call No.: aHD1751.A42
*************************************************************
51. Precision farming technology: application to claypen soils.
Sudduth, K. A.; Birrell, S. J.; Borgelt, S. C.; Hughes, D. F.
Clean water, clean environment, 21st century team agriculture,
working to protect water resources conference proceedings, March
5-8, 1995, Kansas City, Missouri /. St. Joseph, Mich. : ASAE,
c1995.. v. 3 p. 267-270.
Descriptors: low-input-agriculture; crop-management;
claypan-soils; crop-yield; data-collection; spatial-variation;
fields-; sensors-; combine-harvesters; glycine-max; zea-mays;
sorghum-bicolor; phosphorus-; soil-fertility; soil-depth;
topsoil-; pilot-farms; research-projects; missouri-;
site-specific-crop-management; management-systems;
evaluation-areas
NAL Call No.: TD365.C54-1995
*************************************************************
52. Precision irrigation with solar energy.
Furuta, T.; Martin, W. C.; Perry, F. B. F. B.
Auburn : Agricultural Experiment Station, Auburn University,
1963. 11 p. : ill..
Cover title.
Descriptors: Solar-energy-in-agriculture; Irrigation-efficiency
NAL Call No.: 100-AL1S-2-no.146
*************************************************************
53. Precision navigation with GPS.
Larsen, W. E.; Nielsen, G. A.; Tyler, D. A.
Comput-electron-agric v.11, p.85-95. (1994).
In the special issue: Global positioning systems in agriculture \
edited by H. Auernhammer.
Descriptors: tractors-; automatic-guidance; position-; models-;
global-positioning-system
NAL Call No.: S494.5.D3C652
*************************************************************
54. A preliminary assessment of the economics of variable rate
technology for applying phosphorus and potassium in corn
production.
Hertz, C. A.; Hibbard, J. D.
Farm-econ-facts-opin. Urbana, ILL. : Cooperative Extension
Service, University of Illinois,. Oct 1993. (93-14) 6 p.
Includes references.
Descriptors: zea-mays; crop-production; phosphorus-fertilizers;
potassium-fertilizers; application-rates; technology-
NAL Call No.: 281.8-F2226
*************************************************************
55. Prescription agriculture.
Wink, L.
Future-Mich-State-Univ-Agric-Exp-Stn v.5, p.14-17. ill. (1986).
Descriptors: crop-enterprises; farm-management; decision-making;
simulation-models
NAL Call No.: S75.F87
*************************************************************
56. Prescription maps for spatially variable herbicide
application in no-till corn.
Brown, R. B.; Steckler, J. P. G. A.
Trans-ASAE v.38, p.1659-1666. (1995).
Includes references.
Descriptors: zea-mays; weeds-; weed-control; remote-sensing;
aerial-methods; aerial-photography; photointerpretation-;
identification-; mapping-; geographical-information-systems;
computer-techniques; microcomputers-; decision-making; models-;
herbicides-; formulations-; application- rates;
spatial-variation; low-input-agriculture; ontario-;
herbicide-application-decision-models; weed-maps
Abstract: Weed maps for fields of no-till corn (Zea mays L.) were
prepared from image analysis of digitized low-altitude aerial
photographs. These weed maps were imported into a Geographic
Information System (GIS) and divided into independent subunits
for spatially variable herbicide prescription. A decision model
was designed for pre-plant and post-emergence weed control
recommendations. Each subunit of the field weed map was
submitted to this decision model to determine the optimum
herbicide mix and application rate. The resulting prescription
maps would be used to control a field sprayer and to apply the
appropriate herbicide combination to each weedy area. Results
indicate that herbicide use would have been reduced by more than
40% with this approach. This demonstrates a means to
significantly reduce herbicide usage in crop production without
sacrificing weed control or crop yield.
NAL Call No.: 290.9-Am32T
*************************************************************
57. Proceedings of site-specific management for agricultural
systems : second international conference, March 27-30, 1994
Thunderbird Hotel, 2201 East 78th St., Minneapolis, MN :
conducted by the Department of Soil Science and Minnesota
Extension Service, University of Minnesota. Site-specific
management for agricultural systems.
Robert, P. C. P. C.; Rust, R. H. R. H. 1.; Larson, W. E. 1.;
University of Minnesota. Dept. of Soil Science.
Madison, WI, USA : American Society of Agronomy : Crop Science
Society of America : Soil Science Society of America, c1995.
xvii, 993 p. : ill., maps.
"The proceedings of the Second International Conference on
Site-Specific Management for Agricultural Systems, held in
Minneapolis (Bloomington), March 28-30, 1994, a first conference
was held in Minneapolis in April 1992"--P. xiii.
Descriptors: Land-capability-for-agriculture-Congresses;
Agricultural-mapping-Congresses; Soil-science-Congresses;
Agriculture-Technology-transfer- Congresses;
Agricultural-systems-Congresses
NAL Call No.: S590.2.P762--1995
*************************************************************
58. Professional schools for agriculture.
Wallace, A.
HortScience v.27, p.10. (1992).
Includes references.
Descriptors: agriculture-; agricultural-colleges;
college-curriculum; usa-; doctor-of-high-precision-agriculture
NAL Call No.: SB1.H6
*************************************************************
59. The promise of precision agriculture.
Vanden Heuvel, R. M.
J-soil-water-conserv v.51, p.38-40. (1996).
Commentary.
Descriptors: alternative-farming; low-input-agriculture;
sustainability-; agricultural-development
NAL Call No.: 56.8-J822
*************************************************************
60. A proposed GPS geodetic high accuracy reference network for
the state of Indiana.
Findorff, D. D.; Van Gelder, B. H. W.; Johnson, S. D.
Eng-ext-ser. West Lafayette, Ind. : Purdue University, Dept. of
Engineering Extension. 1994. (165) p. 40-56.
Proceedings of the 80th Annual Road School held March 1-3, 1994,
West Lafayette, Indiana.
Descriptors: satellites-; data-communication;
telecommunications-; indiana-; kentucky-;
naustar-navigation-system-with-time-and-ranging;
us-department-of-defense
NAL Call No.: 290.9-P972
*************************************************************
61. A prototype design of a computer-controlled spreader system
for prescription farming technology.
Tsui, T. L.; Smith, D. A.
Proc-N-D-Acad-Sci. Grand Forks, N.D. : The Academy. Apr 1992. v.
46 p. 64.
Descriptors: spreaders-; fertilizer-distributors;
computer-software; bigwin-software
NAL Call No.: 500-N813
*************************************************************
62. Reducing the nitrogen requirement of vegetable crops by
precision fertilizer injection.
Stone, D. A.; Rowse, H. R.
Asp-appl-biol p.399-402. (1992).
In the series analytic: Nitrate and farming systems / edited by
J.R. Archer, K.W.T. Goulding, S.C. Jarvis, C.M. Knott, I. Lord,
S.E. Ogilvy, J. Orson, K.A. Smith, and B. Wilson.
Descriptors: allium-cepa; lactuca-sativa; ammonium-nitrate;
ammonium-phosphates; urea-; soil-injection; broadcasting-;
low-input-agriculture; nutrient- requirements; application-rates;
seedbed-preparation; west-midlands-of-england
NAL Call No.: QH301.A76
*************************************************************
63. Regression models for estimating soil properties by landscape
position.
Brubaker, S. C.; Jones, A. J.; Frank, K.; Lewis, D. T.
Soil-Sci-Soc-Am-j. [Madison, Wis.] Soil Science Society of
America. Nov/Dec 1994. v. 58 (6) p. 1763-1767.
Includes references.
Descriptors: soil-properties; soil-variability; landscape-;
topography-; sloping-land; correlation-; regression-analysis;
models-; alternative-farming; nebraska-; prescription-farming
Abstract: Slope geometry and the associated variation in soil
properties influence runoff, drainage, soil temperature, the
extent of soil erosion and deposition, and crop yields. With the
current emphasis on prescription farming, approaches are needed
to more effectively match inputs to production system needs
while accounting for variation in soil and water resources within
a field. The objectives of the study was to develop simplified
regression models to predict soil properties on different
landscape positions from observed values on the nearly level
upper interfluve. Soil samples were taken from the upper and
lower interfluve, shoulder, upper and lower linear, and footslope
at each of four sites in eastern Nebraska. Predictive equations
were developed for 20 soil properties using multiple linear
regression. Independent variables included were observed values
of the property being modeled from the upper interfluve, sampling
depth, and an irrigation code. Of the 100 models developed, only
eight included significant contributions from all three
independent variables. Models for pH, organic matter, electrical
conductivity, exchangeable K, base saturation percentage, and
available P and K consistently had R2 values greater than O.50.
The upper interfluve contributed significantly to the prediction
of each of these properties except electrical conductivity. A
comparison between average observed and predicted values for
each soil property at each sampling depth revealed that the
observed values generally fell within a 95% confidence interval
about the predicted values. The confidence interval half-width
was generally <10% of the mean for the observed values. Further
evaluation with independent data sets could.
NAL Call No.: 56.9-So3
*************************************************************
64. Requirements for a fully integrated fertilizer program.
Larson, T.
Proc-annu-meet-Fert-Ind-Round-Table p.52-57. (1995).
Meeting held October 23-25, 1995, Raleigh, North Carolina.
Descriptors: farm-management; farm-inputs; fertilizers-;
decision-making; sustainability-; precision-agriculture
NAL Call No.: 57.09-F41
*************************************************************
65. A robust method for estimating soil properties in unsampled
cells.
Han, S.; Goering, C. E.; Cahn, M. D.; Hummel, J. W.
Trans-ASAE v.36, p.1363-1368. (1993).
Includes references.
Descriptors: soil-properties; kriging-; statistical-analysis;
site-specific-crop-management; data-blocking; median-polishing
Abstract: For site-specific crop management (SSCM), fields are
viewed as collections of small regions cells) in which soil
properties are nearly uniform. A field information system (FIS)
can be used to store soil fertility data and to create
application rate maps on a cell-by-cell basis. A data blocking
procedure was developed to convert soil sample data into a new
data set in which one value represents the soil property in
each cell A nonparametric distance-weighting algorithm was
developed which produced about the same estimation errors as a
kriging method, but was much faster. Example applications of
the data blocking procedure to KC1 extractable nitrate and soil
organic matter data are included.
NAL Call No.: 290.9-Am32T
*************************************************************
66. Runoff and leaching of alachlor under conventional and
soil-specific management.
Khakural, B. R.; Robert, P. C.; Koskinen, W. C.
Soil-use-manage v.10, p.158-164. (1994).
Includes references.
Descriptors: alachlor-; application-rates; environmental-impact;
runoff-; leaching-; losses-from-soil; catenas-; landscape-;
topography-; drainage-; soil- variability; alternative-farming;
minnesota-; precision-farming; landscape-position;
soil-specific-application-rates; uniform-application-rates
Abstract: The influence of conventional and soil-specific
management on leaching and runoff losses of soil-applied alachlor
(2-chloro-2',6'-diethyl- N-(methoxymethyl) acetanilide) was
studied across a soil catena (landscape) with varied slope and
drainage characteristics. The catena consisted of: a
well-drained Ves (fine-loamy, mixed, mesic Udic Haplustoll) soil
on the backslope (1-4%), a Ves soil on the sideslope (6-12%),
and a poorly drained Webster (fine-loamy, mixed, mesic Typic
Haplaquoll) soil on the toeslope (0-3%). In general, the
concentration of alachlor in runoff water was greater in the Ves
soil than in the Webster. In 1992 alachlor concentrations in
runoff (water, sediment + water) were less for soil-specific
rates (2.20 or 2.80 kg/ha) than for a uniform rate (3.36 kg/ha)
in both Ves soils. There was no significant difference in
alachlor concentration related to application rates
(soil-specific rate 3.66 kg/ha) in the runoff from the Webster
soil. Averaged across soils and events, the concentrations of
alachlor in runoff (water, sediments + water) were less for
soil-specific rates than for the uniform rate. Alachlor was not
detected in soil samples obtained from depths greater than 15 cm
in any soil or treatment after the first sampling. At the first
sampling in 1992 (7 days after application) alachlor was
detected down to 45 and 90 cm in the Ves and Webster soils,
respectively. Detectable amounts (less than or equal to 0.1
micrograms/l) of alachlor were observed in soil water samples
extracted from all three soils during some sampling dates. No
particular trends were observed with soils or application rates.
NAL Call No.: S590.S68
*************************************************************
67. Satellites key to new farming aids.
Becker, H.; Senft, D.
Agric-Res-U-S-Dep-Agric-Res-Serv v.40, p.4-8. (1992).
Descriptors: agricultural-research; satellites-; technology-;
innovation-adoption; fertilizer-requirement-determination;
soil-salinity; measurement-; global-positioning-system
NAL Call No.: 1.98-AG84
*************************************************************
68. Selection of cell size for site-specific crop management.
Han, S.; Goering, C. E.; Hummel, J. W.; Cahn, M. D.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Summer 1992. (927007) 16 p.
Paper presented at the "1992 International Summer Meeting
sponsored by the American Society of Agricultural Engineers,"
June 21-24, 1992, Charlotte, North Carolina.
Descriptors: crop-management; site-selection
NAL Call No.: 290.9-Am32P
*************************************************************
69. Sensing soil nitrogen for site specific crop management
(SSCM).
Upadhyaya, S. K.; Shafii, S.; Slaughter, D.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Summer 1994. (94-1039/94-1074) 19 p.
Paper presented at the 1994 International Summer Meeting
sponsored by the ASAE, June 19-22, 1994, Kansas City, Missouri.
Descriptors: crop-management; soil-; nitrogen-; soil-water;
soil-water-content; sensing-; radiation-; sensors-; measurement-
NAL Call No.: 290.9-Am32P
*************************************************************
70. Small-grain precision planter for dryland experimental plots.
Botha, A. H.; Purchase, J. L.; Wilkins, D. E.
Agron-j v.86, p.359-362. (1994).
Includes references.
Descriptors: dry-farming; experimental-equipment;
experimental-plots; planters-; design-; gramineae-; cereal-grains
Abstract: Small-grain stand establishment in research plots of
the summer rainfall region of South Africa is a problem because
of dry surface soil. A vacuum system plot planter was developed
to meet these requirements. The planter has simple adjustments
for changes in species, cultivars, seeding rate, row spacing,
and fertilizer rate. The precision planter has fertilizer tines
and modified planter units. Uniform stands are achieved with
most species at seeding rates varying from 5 to 100 kg ha-1
(4.5-89.0 lb acre-1), with no restriction in plot length. The
unit is easily transported and can plant in excess of 80 5-m
(16.5 ft) plots h-1.
NAL Call No.: 4-AM34P
*************************************************************
71. A soil analysis sampling method to determine pH, P, K, and Mg
fertiliser application using variable rate technology.
Budden, A. L.
Asp-appl-biol p.281-282. (1994).
In the series analytic: Sampling to make decisions / edited by P.
Brain, S.H. Hockland, P.D. Lancashire, and L.C. Sim.
Descriptors: soil-fertility; soil-ph; phosphorus-; potassium-;
magnesium-; mapping-; sampling-; soil-analysis; spatial-variation
NAL Call No.: QH301.A76
*************************************************************
72. Soil nutrient mapping implications using GPS.
Delcourt, H.; Baerdemaeker, J. de.
Comput-electron-agric v.11, p.37-51. (1994).
In the special issue: Global positioning systems in agriculture /
edited by H. Auernhammer.
Descriptors: soil-management; nutrient-availability;
spatial-variation; soil-properties; position-; mapping-;
automatic-guidance; global-positioning-systems
NAL Call No.: S494.5.D3C652
*************************************************************
73. Spatial analysis of soil fertility for site-specific crop
management.
Cahn, M. D.; Hummel, J. W.; Brouer, B. H.
Soil-Sci-Soc-Am-j. [Madison, Wis.] Soil Science Society of
America. July/Aug 1994. v. 58 (4) p. 1240-1248.
Includes references.
Descriptors: soil-fertility; soil-variability;
soil-organic-matter; carbon-; nitrate-nitrogen; nitrogen-content;
phosphates-; phosphorus-; potassium-; nutrient-content;
soil-water-content; spatial-variation; statistical-analysis;
size-; boundaries-; patterns-; crop-management; illinois-;
variography-
Abstract: Spatial patterns of soil properties and nutrient
concentrations need to be characterized to develop site-specific
farming practices that match agricultural inputs with regional
crop needs. The spatial variation of soil organic C (SOC), soil
water content (SWC), NO3-N, PO4-P, and K were evaluated in the
0- to 15-cm layer of a 3.3-ha field (Typic Haplaquoll and
Argiaquic Argialboll) cropped with maize (Zea mays L.) and
soybean [Glycine max (L.) Merr.]. The range of spatial
correlation was determined from semivariance analyses of the data
and was found to vary among and within fertility parameters.
Nitrate had the shortest correlation range (< 5 m) and SOC had
the longest (> 180 m), whereas SWC, PO4-P, and K had
intermediate spatial correlation ranges. In addition, SOC was
found to have small-scale spatial variation nested within
large-scale spatial variation. The spatial pattern of NO3-N
changed with time. Frequency distributions of SOC and SWC were
close to normal, whereas the distributions of NO3-N, K, and
PO4-P data were skewed. Median polishing detrending and trimming
of outlying data were useful methods to remove the effects of
nonstationarity and non-normality from the semivariance analysis.
The results suggest that reducing sampling intervals from 50 to
1 m would reduce the variance of SWC, SOC, NO3-N, PO4-P, and K
estimates by 74, 95, 25, 64, and 58%, respectively. A useful
sampling pattern for characterizing the spatial variation of
several soil properties-nutrients and scales should be random
with sample spacing as close as 1 m and as far apart as the
longest dimension of the field.
NAL Call No.: 56.9-So3
*************************************************************
74. Spatially-variable fertilizer and pesticide application with
GPS and DGPS.
Schueller, J. K.; Wang, M. W.
Comput-electron-agric v.11, p.69-83. (1994).
In the special issue: Global positioning systems in agriculture /
edited by H. Auernhammer.
Descriptors: fertilizers-; pesticides-; application-methods;
spatial-variation; position-; technology-; automatic-guidance;
global-positioning-system;
differential-global-positioning-system; location-technology
NAL Call No.: S494.5.D3C652
*************************************************************
75. Specifications for differential GPS coordinate data
submission to the Geometronics Service Center.
Warburton, T.
Eng-field-notes. Washington, D.C. : United States Department of
Agriculture, Forest Service, Engineering Staff. July/Aug 1993. v.
25 p. 49-53.
Descriptors: mapping-; satellites-; specifications-;
globally-positioned-satellite
NAL Call No.: aSD388.A1U52
*************************************************************
76. Timeliness and precision-key factors in dryland agriculture.
Singh, R. P. R. P. 1.; Das, S. K.; All India Coordinated
Research Project for Dryland Agriculture.
Hyderabad : All India Coordinated Research Project for Dryland
Agriculture, 1984. 29 p. : ill.,
Descriptors: Dry-farming-India
NAL Call No.: SB110.S56
*************************************************************
77. Tools to aid management: the use of site specific management.
Kincheloe, S.
J-soil-water-conserv v.49, p.43-45. (1994).
In the special issue: Nutrient management. Paper presented at a
conference held on April 20-22, 1993, St. Louis, Missouri.
Descriptors: farming-systems; sustainability-; management-;
environmental-protection
NAL Call No.: 56.8-J822
*************************************************************
78. Use of aerial photographs to identify suitable GPS survey
stations.
Adkins, K. F.; Lyon, J. G.
Photogramm-Eng-Remote-Sensing v.57, p. 933-936. (1991).
Includes references.
Descriptors: cadasters-; aerial-photography
NAL Call No.: 325.28-P56
*************************************************************
79. Use of the global positioning system in soil survey.
Long, D. S.; DeGloria, S. D.; Galbraith, J. M.
J-soil-water-conserv v.46, p.293-297. (1991).
Includes references.
Descriptors: soil-surveys; satellite-surveys
NAL Call No.: 56.8-J822
*************************************************************
80. Using airborne video, global positioning system, and
geographical information system technologies for detecting and
mapping citrus blackfly infestations.
Everitt, J. H.; Escobar, D. E.; Summy, K. R.; Davis, M. R.
Southwest-entomol v.19, p.129-138. (1994).
Includes references.
Descriptors: citrus-; aleurocanthus-woglumi; sooty-molds;
detection-; geographical-distribution; remote-sensing;
video-recordings; aerial-surveys; texas-; capnodium-citri
NAL Call No.: QL461.S65
*************************************************************
81. Using the GPS satellites for precision navigation.
Larsen, W. E.; Tyler, D. A.; Nielsen, G. A.
Automated agriculture for the 21st century proceedings of the
1991 symposium, 16-17 December 1991, Chicago, Illinois. St.
Joseph, Mich. : American Society of Agricultural Engineers,
c1991.. p. 201-208.
Includes references.
Descriptors: farm-equipment; automatic-guidance; satellites-;
global-positioning-system
NAL Call No.: S671.3.A97-1991
*************************************************************
82. Using the United States Global Positioning System to map the
location of apiaries.
Erickson, E. H.; Buchmann, S. L.
Am-bee-j v.136, p.124-126. (1996).
Descriptors: apiaries-; apiary-sites; mapping-;
satellite-surveys; remote-sensing
NAL Call No.: 424.8-Am3
*************************************************************
83. Variable planting density and fertilizer rate application
system.
Neuhaus, P. E.; Searcy, S. W.
Pap-Am-Soc-Agric-Eng. St. Joseph, Mich. : American Society of
Agricultural Engineers,. Winter 1993. (93-1531/93-1560) 21 p.
Paper presented at the "1993 International Winter Meeting
sponsored by the American Society of Agricultural Engineers,"
December 13- 17, 1993, Chicago, Illinois.
Descriptors: crop-management; site-factors;
site-specific-crop-management
NAL Call No.: 290.9-Am32P
*************************************************************
84. Variable rate fluid technology arrives for dealers.
Peitscher, A.
Solutions v.36, p.31-34. (1992).
Descriptors: fertilizers-; fertilizer-distributors; application-;
equipment-; prescription-farming
NAL Call No.: 57.8-SO4
*************************************************************
85. The view from above: an overview of GPS and remote sensing
options.
Greer, J. D.
J-For v.91, p.10-14. (1993).
Includes references.
Descriptors: remote-sensing; satellites-; aerial-photography;
resource-management; geographical-information-systems
NAL Call No.: 99.8-F768
*************************************************************
86. Weed control in sugar beet by precision guided implements.
Zuydam, R. P. v.; Sonneveld, C.; Naber, H.
Crop-prot v.14, p.335-340. (1995).
Includes references.
Descriptors: beta-vulgaris-var; -saccharifera;
seedbed-preparation; drilling-; spraying-; application-methods;
fertilizers-; hoeing-; implements-; automatic-guidance; lasers-;
weed-control; low-input-agriculture
Abstract: A field experiment was carried out in sugar beet with a
wide-span (12.2 m) tractor and laser guided implements. By means
of a side-shift facility, implements were mounted on this
vehicle for seedbed preparation, drilling, fertilizing, spraying
and hoeing. Automatic laser guidance was possible with an
accuracy of 0.6 cm on a track length of 220 m on arable land. No
inputs (soil cultivation, fertilizer, herbicide) were made at
places where they were not needed, or even would potentially
pollute the environment. The aim of the experiment, which was
carried out in 2 successive years on fields of the same farm,
was to investigate the influence on weed occurrence and
efficiency of weed control. Leaving out seedbed preparation
between the future crop rows left already germinated weeds alive.
In 1 year pre-emergence application of paraquat-diquat was
necessary to stop growing of well developed weed plants. A
crumbling operation had to be carried out to break the clods,
otherwise inter- row hoeing was impossible. From the viewpoint of
weed control restricting seedbed preparation to the future sugar
beet rows was not of advantage. Precision guidance allowed
enlargement of mechanical weed control, i.e. inter row hoeing to
80% (40 cm wide at a row distance to 50 cm). Savings on
herbicides were 75%, because little overlap was necessary of
chemically and mechanically treated areas. The absence of
fertilizers in these inter-row bands did not diminish the number
of weeds, and speed of emergence of weeds. The effect of seedbed
preparation and drilling the sugar beet crop in complete
darkness (at night), made possible by the automatic guidance, on
weed infestation was not different from daylight treatments. In
these.
NAL Call No.: SB599.C8
*************************************************************
87. Weed eradication using geographic information systems.
Prather, T. S.; Callihan, R. H.
Weed-technol v.7, p.265-269. (1993).
Paper presented at the "Symposium on Geographic Information
Systems," February 11, 1992, Orlando, Florida.
Descriptors: weed-control; crupina-vulgaris;
geographical-information-systems; infestation-;
satellite-surveys; satellite-imagery; global-positioning-system
NAL Call No.: SB610.W39
*************************************************************
88. Yield and water use efficiency of corn in response to LEPA
irrigation.
Howell, T. A.; Yazar, A.; Schneider, A. D.; Dusek, D. A.;
Copeland, K. S.
Trans-ASAE v.38, p.1737-1747. (1995).
Includes references.
Descriptors: zea-mays; center-pivot-irrigation; grain-; biomass-;
crop-yield; yield-components; yield-correlations; water-use;
water-use-efficiency; clay- loam-soils; climatic-factors;
evapotranspiration-; leaf-area-index; soil-water-content;
crop-management; texas-; low-energy-precision-application
Abstract: Center-pivot sprinklers are rapidly expanding on the
Southern High Plains, and LEPA (low energy precision application)
application methods are widely used in this region to reduce
water application losses, to use the relatively low well yields,
and to reduce energy requirements for pressurization. This study
was conducted to evaluate LEPA irrigation response of corn (Zea
mays L.) on slowly permeable Pullman clay loam (fine, mixed,
thermic Torrertic Paleustoll). The effects of irrigation amount
were investigated in afield study during the 1992 and 1993
cropping seasons at Bushland, Texas. In 1992, a wetter than
normal season, grain yields varied from 0.6 to 1.2 kg/m2 while in
1993, which was a season with slightly less than normal rain,
grain yields varied from 0.4 to over 1.5 kg/m2 as irrigations
increased from no-post plant irrigations to fully meeting the
crop water use. Irrigation amounts for the full irrigation varied
from only 279 mm for the wet year to over 640 mm for the more
normal year. A significant relationship was found between grain
yield and water use for the two years described as GY (kg/m2) =
0.00169 [WU (mm)-147] with an r2 of 0.882 and a Sy/x of 0.10
kg/m2. Deficit irrigation of corn, even with LEPA, reduced yields
by affecting both seed mass and kernels per ear. Generally, the
grain yield was in proportion to dry matter yield. LEPA
irrigation was shown to be efficient in terms of partitioning
the applied water into crop water use. Irrigation amounts should
not exceed 25 mm for alternate furrows (0.76- m rows) LEPA on the
Pullman-type soils with furrow dike basins.
NAL Call No.: 290.9-Am32T
*************************************************************
NAL DOCUMENT DELIVERY SERVICES
June 1993
United States Department of Agriculture
National Agricultural Library
Public Services Division
Document Delivery Services Branch
Beltsville, Maryland 20705-2351
The National Agricultural Library has established document
delivery service policies for three user categories. They are 1)
individuals; 2) libraries, other information centers, and
commercial organizations; and 3) foreign libraries, information
centers, and commercial organizations. Available services for
each user category are given below. For information
on electronic access for interlibrary loan requests, the
"Interlibrary Loan" file.
1) DOCUMENT DELIVERY SERVICES TO INDIVIDUALS
The National Agricultural Library (NAL) supplies agricultural
materials not found elsewhere to other libraries.
Filling requests for materials readily available from other
sources diverts NAL's resources and diminishes its ability to
serve as a national source for agricultural and agriculturally
related materials. Therefore, NAL is viewed as a library of last
resort. SUBMIT REQUESTS FIRST TO LOCAL OR STATE LIBRARY SOURCES
PRIOR TO SENDING TO NAL. In the United States, possible sources
are public libraries, land-grant university or other large
research libraries within a state. In other countries submit
requests through major university, national, or provincial
institutions.
If the needed publications are not available from these sources,
submit requests to NAL with a statement indicating their
non-availability. Submit one request per page following the
instructions for libraries below.
NAL'S DOCUMENT DELIVERY SERVICE INFORMATION FOR THE LIBRARY
The following information is provided to assist your librarian in
obtaining the required materials.
LOAN SERVICE -- Materials in NAL's collection are loaned only to
other U.S. libraries. Requests for loans are made through local
public, academic, or special libraries.
The following materials are not available for loan: serials
(except USDA serials); rare, reference, and reserve books;
microforms; and proceedings of conferences or symposia.
Photocopy or microform of non-circulating publications may be
purchased as described below.
DOCUMENT DELIVERY SERVICE -- Photocopies of articles are
available for a fee. Make requests through local public,
academic, or special libraries. The library will submit a
separate interlibrary loan form for each article or item
requested. If the citation is from an NAL database
(CAIN/AGRICOLA, "Bibliography of Agriculture,"
or the NAL Catalog) and the call number is given, put that call
number in the proper block on the request form. Willingness to
pay charges must be indicated on the form. Include compliance
with copyright law or a statement that the article is for
"research purposes only" on the interlibrary loan form or letter.
Requests cannot be processed without these statements. Please
read copyright notice below.
CHARGES:
* Photocopy, hard copy of microfilm and microfiche - $5.00 for
the first 10 pages or fraction copied from a single article or publication. $3.00 for each additional 10 pages or fraction.
* Duplication of NAL-owned microfilm - $10.00 per reel.
* Duplication of NAL-owned microfiche - $ 5.00 for the first
fiche and $ .50 for each additional fiche per title.
BILLING -- Charges include postage and handling, and are subject
to change. Invoices are issued quarterly by the National
Technical Information Service (NTIS), 5285 Port Royal Road,
Springfield, VA 22161. Establishing a deposit account with NTIS
is encouraged.
DO NOT SEND PREPAYMENT.
SEND REQUESTS TO:
USDA, National Agricultural Library
Document Delivery Services Branch, PhotoLab
10301 Baltimore Blvd., NAL Bldg.
Beltsville, Maryland 20705-2351
Contact the Head, Document Delivery Services Branch in writing or
by calling (301) 504-5755 with questions or comments about this
policy.
2) DOCUMENT DELIVERY SERVICES AVAILABLE TO LIBRARIES, OTHER
INFORMATION CENTERS AND COMMERCIAL ORGANIZATIONS.
The National Agricultural Library (NAL) accepts requests from
libraries and other organizations in accordance with the national
and international interlibrary loan code and guidelines. In its
national role, NAL supplies copies of agricultural materials not
found elsewhere. Filling requests for materials readily
available from other sources diverts NAL's resources and
diminishes its ability to serve as a national source for
agricultural and agriculturally related materials. Therefore,
NAL is viewed as a library of last resort.
Submit requests to state/region/network sources prior to sending
to NAL. Within the United States, possible sources are public
libraries, land-grant university libraries or other large
research libraries within a state. In other countries submit
requests to major university, national or provincial
institutions. If the needed publications are not available from
these sources, submit requests to NAL with a statement indicating
their non-availability.
REQUESTS -- Submit on the American Library Association (ALA) or
the International Federation of Library Associations and
Institutions (IFLA) interlibrary loan form or via electronic mail
or telefacsimile (see over for more details). Include the
complete name of the person authorizing the request on each form;
the standard bibliographic source which lists the title as owned
by NAL; and the call number if the citation is from an NAL
database (CAIN/AGRICOLA, "Bibliography of Agriculture," or the
NAL catalog).
LOAN SERVICE -- Materials in the NAL collection are loaned only
to U.S. libraries. The loan period is one month.
The following materials are not available for loan: serials
(except for USDA serials); rare, reference, and reserve books;
microforms; and proceedings of conferences or symposia.
Photocopy or microform of the non-circulating publications is
supplied automatically (as described below) when the requesting
organization indicates that photocopy is acceptable on the loan
form.
AUDIOVISUALS (AVs) -- Order at least 3-4 weeks before the
intended show date. Give show date and alternate show date when
requesting specific titles. Request specific format needed if
more than one format is given in the citation.
DOCUMENT DELIVERY SERVICE -- Submit a separate completed
interlibrary loan form for each article required. Indicate
willingness to pay charges on the form and compliance with
copyright law or include a statement that the article is for
"research purposes only." Requests are not processed without
these statements. Please read copyright notice below.
CHARGES:
* Photocopy, hard copy of microfilm and microfiche - $5.00 for
the first 10 pages or fraction copied from a single article or publication. $3.00 for each additional 10 pages or fraction.
* Duplication of NAL-owned microfilm - $10.00 per reel.
* Duplication of NAL-owned microfiche - $5.00 for the first
fiche and $ .50 for each additional fiche per title.
BILLING - Charges include postage and handling, and are subject
to change. Invoices are issued quarterly by the National
Technical Information Service (NTIS), 5285 Port Royal Road,
Springfield, VA 22161. Establishing a deposit account with NTIS
is encouraged. DO NOT SEND PREPAYMENT.
Send Requests to:
USDA, National Agricultural Library
Document Delivery Services Branch, ILL, PhotoLab
10301 Baltimore Blvd., NAL Bldg.
Beltsville, Maryland 20705-2351
Contact the Head, Document Delivery Services Branch in writing or
by calling (301) 504-5755 with questions or comments about this
policy.
3) DOCUMENT DELIVERY SERVICES AVAILABLE TO FOREIGN LIBRARIES,
INFORMATION CENTERS AND COMMERCIAL ORGANIZATIONS.
The National Agricultural Library (NAL) accepts requests from
libraries and other organizations in accordance with the national
and international interlibrary loan code and guidelines.
In its national role, NAL supplies copies of agricultural
materials not found elsewhere. Filling requests for materials
readily available from other sources diverts NAL's resources and
diminishes its ability to serve as a national source for
agricultural and agriculturally related materials. Therefore,
NAL is viewed as a library of last resort.
Submit requests to major university libraries, national or
provincial institutions or network sources prior to sending
requests to NAL. If the needed publications are not available
from these sources, submit requests to NAL with a statement
indicating their non-availability.
AGLINET -- Requesters in countries with an AGLINET library are
encouraged to make full use of that library and its networking
capabilities. As an AGLINET participant, NAL provides free
document delivery service for materials published in the United
States to other AGLINET participants.
REQUESTS -- Submit requests on the American Library Association
(ALA) or the International Federation of Library Associations and
Institutions (IFLA) interlibrary loan form or via electronic mail
or telefacsimile (see over for more details). Include the
complete name of the person authorizing the request on each form;
the standard bibliographic source which lists the title as owned
by NAL; and the call number if the citation is from an NAL
database(CAIN/AGRICOLA, "Bibliography of Agriculture", or the NAL
catalog).
DOCUMENT DELIVERY SERVICE -- Submit a separate completed
interlibrary loan form for each article requested. Indicate
willingness to pay charges on the form, and compliance with
copyright law or include a statement that the article is for
"research purposes only". Requests cannot be processed without
these statements. Please read copyright notice below.
CHARGES:
* Photocopy, hard copy of microfilm and microfiche - $5.00 for
the first 10 pages or fraction copied from a single article or publication. $3.00 for each additional 10 pages or fraction.
* Duplication of NAL-owned microfilm - $10.00 per reel.
* Duplication of NAL-owned microfiche - $5.00 for the first
fiche and $ .50 for each additional fiche per title.
BILLING - Charges include postage and handling, and are subject
to change. Invoices are issued quarterly by the National
Technical Information Service (NTIS), 5285 Port Royal Road,
Springfield, VA 22161. Establishing deposit account with NTIS is
encouraged. Annual billing is available to foreign institutions
on request by contacting NAL at the address below. DO NOT SEND
PREPAYMENT.
Send Requests to:
USDA, National Agricultural Library
Document Delivery Services Branch, ILL, PhotoLab
10301 Baltimore Blvd., NAL Bldg.
Beltsville, Maryland 20705-2351
Contact the Head, Document Delivery Services Branch at (301)
504-5755 with questions or comments about this policy.
ELECTRONIC MAIL ACCESS FOR INTERLIBRARY LOAN (ILL) REQUESTS
June 1993
The National Agricultural Library (NAL), Document Delivery
Services Branch accepts ILL requests from libraries via several
electronic services. All requests must comply with established
routing and referral policies and procedures. The transmitting
library will pay all fees incurred during the creation of
requests and communication with NAL. A sample format for
ILL requests is printed below along with a list of the required
data/format elements.
ELECTRONIC MAIL - (Sample form below)
SYSTEM ADDRESS CODE
====================================================
INTERNET. . . . . LENDING@NALUSDA.GOV
EASYLINK. . . . . 62031265
ONTYME. . . . . . NAL/LB
TWX/TELEX . . . . Number is 710-828-0506 NAL LEND.
This number may only be used for
ILL requests.
FTS2000 . . . . . A12NALLEND
OCLC . . . . . . NAL's symbol AGL need only be entered
once, but it must be the last entry in
the Lender string. Requests from USDA
and Federal libraries may contain AGL
anywhere in the Lender String.
SAMPLE ELECTRONIC MAIL REQUEST
=================================================================| AG University/NAL ILLRQ 231 4/1/93 NEED BY: 6/1/93
|
|
|
| Interlibrary Loan Department
|
| Agriculture University
|
| Heartland, IA 56789
|
|
|
| Dr. Smith Faculty Ag School
|
|
|
| Canadian Journal of Soil Science 1988 v 68(1): 17-27
|
| DeJong, R. Comparison of two soil-water models under
|
| semi-arid growing conditions
|
| Ver: AGRICOLA
|
| Remarks: Not available at IU or in region.
|
| NAL CA: 56.8 C162
|
|
|
| Auth: C. Johnson CCL Maxcost: $15.00
|
|
|
| MORE
|
|
|
=================================================================
TELEFACSIMILE - Telephone number is 301-504-5675. NAL accepts
ILL requests via telefacsimile. Requests should be created on
standard ILL forms and then faxed to NAL. NAL does not fill
requests via Fax at this time.
REQUIRED DATA ELEMENTS/FORMAT
1. Borrower's address must be in block format with at least two
blank lines above and below so form may be used in window envelopes.
2. Provide complete citation including verification, etc.
3. Provide authorizing official's name (request will be rejected if not included).
4. Include statement of copyright compliance if applicable.
Please read copyright notice below.
5. Indicate willingness to pay applicable charges.
6. Include NAL call number if available. Contact the Document Delivery Services Branch at (301) 504-6503 if additional
information is required.
****************************************************************
Photocopy Warning:
NOTICE WARNING CONCERNING COPYRIGHT RESTRICTIONS
The copyright law of the United States (Title 17, United States
Code) governs the making of photocopies or other reproductions of
copyrighted material.
Under certain conditions specified in the law, libraries and
archives are authorized to furnish a photocopy or other
reproduction. One of these specific conditions is that the
photocopy or reproduction is not to be "used for any purpose
other than private study, scholarship, or research." If a user
makes a request for, or later uses, a photocopy or reproduction
for purposes in excess of "fair use," that user may be liable for
copyright infringement.
This institution reserves the right to refuse to accept a copying
order if, in its judgement, fulfillment of the order would
involve violation of copyright law.
37 C.F.R. 201.14
****************************************************************
The United States Department of Agriculture (USDA) prohibits
discrimination in its programs on the
basis of race, color, national origin, sex, religion, age,
disability, political beliefs, and marital or
familial status. (Not all prohibited bases apply to all
programs.)
Persons with disabilities who require alternative means for
communication of program information
(Braille, large print, audiotape, etc.) should contact the USDA
Office of Communications at (202)
720-5881 (voice) or (202) 720-7808 (TDD).
To file a complaint of discrimination, write the Secretary of
Agriculture, U.S. Department of
Agriculture, Washington, DC 20250, or fax the complaint to
(202)720-8046 or call (202)
720-4107 (TDD). USDA is an equal employment opportunity employer.
Return to Bibliographies
Return to the Water Quality Information Center at the National Agricultural
Library.
Last update: April 27, 1998
The URL of this page is http://www.nal.usda.gov/wqic/Bibliographies/eb9613.html
J. R. Makuch /USDA-ARS-NAL-WQIC/
jmakuch@nal.usda.gov