Carbon, Nitrogen, Phosphorus and Sulfur Interactions Effects on Soil Biochemical Processes and Corn Grain Yield

University of Minnesota/Paulo Pagliari and Jeffrey Strock

This research was developed to try to understand whether corn grain yields can be increased to levels beyond the state average of high yielding sites (200 bushel/per acre). There has been no research documenting the effects of different carbon management systems combined with several nitrogen, phosphorus and sulfur application rates on the rate of mineralization of plant nutrients and how this process could affect corn grain yield. The proposed study aims at understanding what factors are controlling nutrient availability at isolated locations where yield potential exceeds high-yielding site averages.