Many factors played a part in this situation during the 1950's. They ranged from overproduction, mechanization and technology to what, with the circumstances existing, was an excess of farm labor and management or farm operators.
"Land Values Increased, Why Not Farm Incomes?,"
Iowa Farm Science: Vol. 15
, Article 4.
Available at: http://lib.dr.iastate.edu/farmscience/vol15/iss12/4