An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Development of Sustainable and Organic Farming Systems and Management Practices (In Mid-Atlantic)

Investigators
Millner, Patricia
Institutions
USDA - Agricultural Research Service
Start date
1999
End date
2003
Objective
  1. Develop and compare the biophysical and economic aspects of sustainable field cropping systems in the mid-atlantic.
  2. Assess short/long term impacts of low input, certified organic, and conventional agricultural/tillage management systems on nutrient cycling, availability, organic matter decomposition, soil fertility, quality, biology and formation of stable micro-aggregates.
  3. Develop appropriate uses of organic and inorganic by-products separately and in various combinations.
More information
Evaluate the relationship between sustainability and the type and amounts of external inputs. Measure yield, nutrient (C,N,P,K,Ca/Mg) cycling, pH, dynamics of nutrient release from decomposing organic resources (manure, composts, legume/cover crops) and nutrient fate to crops, soil fertility/quality, water use efficiency and environmental impact. Long term plots have seven distinct systems. Natural biological interactions between plant pathogens and beneficials in soils/rhizospheres will be examined to better understand crop/soil management factors affecting natural antagonism and disease suppression. Changes in soil microbial diversity and community structure and function that enhance biocontrol and sustain plant/soil productivity will be evaluated. Lab, growth chamber and field studies will be conducted to evaluate effects of organic residuals (manures) and compost/fertilizer mixtures. Field experiments will test hypotheses of major factors resulting from the lab and growth chamber studies. Previously was 1265-12000-019-00D. (07/01)
Funding Source
Agricultural Research Service
Project number
1265-21660-001-00D
Accession number
402192
Categories
Chemical Contaminants
Bacterial Pathogens
Antimicrobial Resistance