Influence of Plowing, Disking; Cultivation, Previous Crop and Surface Residues on Corn Yield
1965
Van Doren, D. M.
The influence of plowing, disking, cultivation, previous crop, and organic matter residue management on corn grain yield has been measured on structurally unstable Wooster silt loam soil for two years. Precipitation during the growing season was 8.6 and 10.5 inches per year. On plowed soil, disking reduced yield by 6% and cultivation increased yield by 6%. When the soil was not plowed, management systems providing a high percentage of organic residue surface cover or which included cultivation increased yield much more than disking or previous crop per se. The top producing nonplowed treatments yielded 13% more corn than the best plowed treatments. Of the lowest yielding treatments, nonplowed conditions produced 17% less corn than the plowed treatments.
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