URBANA, Ill. — In a recent study from the University of Illinois Urbana-Champaign, researchers tested whether modern high-yielding soybeans benefit from nitrogen fertilizer, with results suggesting additions are largely unnecessary.
Soybeans form a natural partnership with bacteria that colonize the plant’s roots. In exchange for sugars, the bacteria convert atmospheric nitrogen into a form the plant can use, supplying much of the nitrogen needed for growth and grain development. It has historically been accepted that this supply, along with nitrogen from the soil, meets the plant’s nitrogen needs, but ever-increasing yield potential raises the question about whether this is still the case, say researchers in the Department of Crop Sciences and Illinois Extension; both units are part of the College of Agricultural, Consumer and Environmental Sciences (ACES) at Illinois. Read more about this story here: https://aces.illinois.edu/news/nitrogen-fertilizer-soybeans-offers-limited-yield-benefits-study-says |