EXPECTED GRAIN YIELD DUE TO VARIOUS PLANTING DATES AND POPULATION RATES

Planting Plants per acre at Harvest
Date 12,000 14,000 16,000 18,000 20,000 22,500 25,000
% of optimum yield
April 20 72 78 83 87 90 93 95
April 25 75 81 86 90 93 96 98
May 1 77 83 88 92 95 98 100
May 6 78 83 88 92 95 98 100
May 11 77 83 88 92 95 98 99
May 16 75 81 86 90 93 96 98
May 21 73 78 83 87 91 94 95
May 26 69 75 80 84 87 90 92
May 31 64 70 75 79 82 85 87
June 5 59 64 69 73 77 80 81
June 10 52 58 63 67 70 73 75

Reference Publication: NCH-30. "Guidelines for Making Corn Replanting Decisions."

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Corn, Soybean, Wheat, and Alfalfa Field GuideBulletin 827