Growing more grasses and legumes in the rotation cuts down erosion, improves soil structure and increases crop yields. But whether or not improved cropping systems mean more money in your pocket depends largely on how you use the additional hay and pasture.
Olson, Russell O. and Heady, Earl O.
"What To Do With Extra Forage?,"
Iowa Farm Science: Vol. 7
, Article 3.
Available at: https://lib.dr.iastate.edu/farmscience/vol7/iss5/3