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Full-Text Articles in Life Sciences
Integrating Management Of Soil Nitrogen And Weeds, Samuel E. Wortman, Adam Davis, Brian J. Schutte, John L. Lindquist
Integrating Management Of Soil Nitrogen And Weeds, Samuel E. Wortman, Adam Davis, Brian J. Schutte, John L. Lindquist
Department of Agronomy and Horticulture: Faculty Publications
Knowledge of the soil nitrogen (N) supply and the N mineralization potential of the soil combined with an understanding of weed-crop competition in response to soil nutrient levels may be used to optimize N fertilizer rates to increase the competitive advantage of crop species. A greenhouse study (2006) and field studies (2007 to 2008) in Illinois and Nebraska were conducted to quantify the growth and interference of maize and velvetleaf in response to varying synthetic N fertilizer rates in soils with high and low N mineralization potential. Natural soils were classified as having ‘‘low mineralization potential’’ (LMP), while soils amended …