Northern Research and Demonstration Farm
With the development of narrow row soybeans, and postemergence herbicides that can be applied several times, and with the practice of spraying for late developing insect problems, the question arises of how late can soybean plants be driven over before yields are reduced. To answer this question an experiment was conducted in 2002 and 2003 on the farm.
Iowa State University
Rueber, David, "Impact of Driving over Soybean Plants on Yield" (2004). Iowa State Research Farm Progress Reports. 1399.