Armstrong Research and Demonstration Farm
Producers faced with economic and environmental concerns should know about the benefits of lime, nitrogen (N) and manure applications on acid soils in southwest Iowa. At the Armstrong Farm, an area of Marshall silty clay loam was identified that possessed an extremely acidic surface soil. In 1995, a liming study was initiated in what had been, and continues to be, a continuous corn production system. The goals of this experiment are to determine corn crop and soil responses to liming, N and manure rates.
Iowa State University
Doorenbos, Russell and Henning, Stanley, "Liming, Nitrogen and Manure Rates for Continuous Corn" (2001). Iowa State Research Farm Progress Reports. 1716.