Interrelationships of plant population, soil moisture and soil fertility in determining corn yields on Colo clay at Ames, Iowa /
Beer, C. E.(Craig Eugene),1927-author.
Shrader, W. D.(William Duncan),author.
Schwanke, Roland Karl,1935-author.
Iowa State University.Agricultural and Home Economics Experiment Station.
Includes bibliographical references (page 15).
Corn
Crops and soils
Corn.
Crops and soils.