Most of the results in this report are based on a personal interview survey of Iowa open-country farmers. Ninety-six percent (178,000) of the operators of Iowa open-country farms sold one or more of Iowa's six top cash farm income products in 1948.
About 92 percent of the open-country zone farm operators listened to day-to-day broadcasts of market reports* before making their last sales of butcher hogs, cattle, corn, soybeans, cream or whole milk and eggs.
Dodds, J. Parry and Marvin, K. R.
"What does the Iowa farmer want from radio market news?,"
Research Bulletin (Iowa Agriculture and Home Economics Experiment Station): Vol. 32
, Article 1.
Available at: https://lib.dr.iastate.edu/researchbulletin/vol32/iss413/1