Citation
Unknown. “Soy bean experiments (continued) On the left bundle weighs 15 pounds, represents plants from half row (2 rods) of inoculated plants. Bundle on the right weighs 8 pounds, represents the remaining half row of (2 rods) of uninoculated check plants. Waite..” Special Collections, USDA National Agricultural Library. Accessed October 15, 2024, https://www.nal.usda.gov/exhibits/speccoll/items/show/290.