Irrigated corn yields in the North central region of the United States
Beer, C.E., Wiersma, Dan
Irrigated corn yields in the North central region of the United States - Ames 1970 - 1-42 p. - Yields, Irrigated Iowa Agriculture and Home Economics Experiment Station. Special Report No. 65 .
Irrigated corn yields in the North central region of the United States - Ames 1970 - 1-42 p. - Yields, Irrigated Iowa Agriculture and Home Economics Experiment Station. Special Report No. 65 .