In most sections of the State three crops of alfalfa hay are harvested. There is a widespread opinion among practical feeders in this locality that these crops of hay are not of equal value for feeding purposes. Especially is this true when feeding dairy cows is considered. The belief is so strong in some cases that farmers have said they would exchange three tons of second crop hay for two of first crop when feeding milk cows. Third crop hay is given second choice.
Carroll, W. E., "Bulletin No. 126 - A Comparison of First, Second and Third Crop Alfalfa Hay for Milk Production" (1913). UAES Bulletins. Paper 77.