Farm Progress Reports




Northwest and Allee Research and Demonstration Farms


Farmers are faced with many decisions in managing corn and soybeans as new technologies are introduced, such as Bt corn hybrids, new pesticides, and land rolling equipment. Land rolling is the practice of pulling a large, heavy roller across soybean fields to push down rocks, smooth the surface of the field, and help break up residue. The purpose is to protect harvest equipment that could be vulnerable to rocks and corn roots. Yields are expected to improve by creating a more uniform harvest. As problems with corn rootworm resistance to Bt corn continue to be found in Iowa, it is important to research methods to manage this pest. It also is important for farmers to adopt tillage practices that not only maximize profits, but also conserve the soil. The objective of these trials was to investigate what affect various corn and soybean management practices would have on grain yield.