Building a Maximum Yield Cropping System for Corn, Wheat and Double-cropped Soybeans

IPNI-1990-USA-MD6

22 Apr 2008

2007 Annual Interpretive Summary

Building a Maximum Yield Cropping System for Corn, Wheat, and Doublecropped Soybeans, 2007

Sixteen N sources were evaluated on winter wheat in 2007. The crops were grown with and without tillage on a Mattapex silt loam soil. Sources containing ammonium sulfate or ammonium nitrate tended to produce modestly higher yields. Slow-release forms of N and elemental sulfur (S) did not boost yields when applied with timings similar to those used with the more soluble sources. MD-06F