Southeast Research and Demonstration Farm
The objectives of this project were to study nitrate loading in subsurface drainage and corn-soybean yield response under various drainage water management practices. This experiment explores various drainage strategies to reduce nitrate loading to surface waters in southeast Iowa.
Iowa State University
Helmers, Matt; Zhou, Xiaobo; Pederson, Carl; and Brenneman, Greg, "Impact of Drainage Water Management on Crop Yield" (2013). Iowa State Research Farm Progress Reports. 1987.