The voluntary feed-grain program was an attempt to halt the build-up of surplus feed grains. Interviews with farmers in 12 Iowa counties reveal traits of farm operators who did and did not take part in the program.
Wittlesey, Norman K.; McLee, Dean E.; and Heady, Earl O.
"The 1961 Feed-Grain Program - Who Took Part?,"
Iowa Farm Science: Vol. 17
, Article 6.
Available at: https://lib.dr.iastate.edu/farmscience/vol17/iss8/6