South Dakota is a participant in a national soybean research effort examining biological nitrogen fixation. Biological Nitrogen Fixation may be the most important economic and environmental process affecting soybean production in the United States, yet it is only partially characterized. We know little about the quantities of nitrogen fixed by the soybean crop or the fate of nitrogen in the environment. This project will help to better understand the soil, soybean management, and environmental factors affecting BNF along with the quantities of N fixed. This will contribute to knowledge for greater soybean yields, higher soybean quality and lower environmental impacts.

Key Benefactors:
farmers, agronomists, extension specialists