Life Sciences Commons^™

Nitrogen Uptake, Fixation And Response To Fertilizer N In Soybeans: A Review, F. Salvagiotti, Kenneth G. Cassman, James E. Specht, Daniel T. Walters, Albert Weiss, Achim R. Dobermann

Department of Agronomy and Horticulture: Faculty Publications

Although relationships among soybean (Glycine max [L.] Merr) seed yield, nitrogen (N) uptake, biological N₂ fixation (BNF), and response to N fertilization have received considerable coverage in the scientific literature, a comprehensive summary and interpretation of these interactions with specific emphasis on high yield environments is lacking. Six hundred and thirty-seven data sets (site–year–treatment combinations) were analyzed from field studies that had examined these variables and had been published in refereed journals from 1966 to 2006. A mean linear increase of 0.013 Mg soybean seed yield per kg increase in N accumulation in above-ground biomass was evident in …