1. Some Thoughts on Nutrient Mineralization and Cycling in No-Till Systems

High post-harvest residue accumulations (10+ tons/acre) often occur in crop sequences involving high yielding corn, spring wheat and soybean. Over the last decade, we have conducted several studies that show that N or P availability may be suppressed either through slow residue decomposition, slow mineralization or immobilization. Although several states provide fertilizer recommendation adjustments for no-till and for high residue accumulations, the recommendations  are sometimes contradictory.... L. Cihacek, R. Alghamdi