Beer, C. E., David, H. T., & Shrader, W. D. (1961). Response of corn yields in a planosol soil to surface drainage, cropping system and variable fertilizer treatments. Agricultural and Home Economics Experiment Station, Iowa State University of Sciene and Technology.
Chicago-Zitierstil (17. Ausg.)Beer, C. E., H. T. David, und William D. Shrader. Response of Corn Yields in a Planosol Soil to Surface Drainage, Cropping System and Variable Fertilizer Treatments. Ames, Iowa: Agricultural and Home Economics Experiment Station, Iowa State University of Sciene and Technology, 1961.
MLA-Zitierstil (9. Ausg.)Beer, C. E., et al. Response of Corn Yields in a Planosol Soil to Surface Drainage, Cropping System and Variable Fertilizer Treatments. Agricultural and Home Economics Experiment Station, Iowa State University of Sciene and Technology, 1961.