What to do with the land that is so hilly and steep that it cannot be farmed in the usual way is a problem on many Iowa farms. We have been trying to get an answer to this problem in a joint research project of the Iowa Agricultural Experiment Station and Soil Conservation Service of the USDA.
Aikman, J. M.
"Put Hilly Land To Work,"
Farm Science Reporter: Vol. 6
, Article 3.
Available at: https://lib.dr.iastate.edu/farmsciencereporter/vol6/iss4/3