Southeast Research and Demonstration Farm
Farmers are continually searching for a third crop to complement the corn-soybean rotation. Field peas can be substituted for most of the soybean meal in swine rations and may be more economical than soybean meal, so there is a huge potential market for field peas in Iowa. Field peas are a short-season crop, which makes double cropping a possibility. There have been recent reports from Illinois of some success in planting field peas in the summer after a winter wheat harvest.
Iowa State University
Fawcett, James A., "Double-Cropped Field Pea Crop Rotation Study" (2006). Iowa State Research Farm Progress Reports. 1161.