Corn Growth as Affected by Soil Temperature and Mulch
1957
Willis, W. O. | Larson, W. E. | Kirkham, D.
SypnosisIncreases in soil temperature accelerated rate of emergence, rate of growth, and promoted earliness in corn. Corn growth rates approximately followed the Van't Hoff law, the Q₁₀° c. of that law being from 2.0 to 2.8 for the average temperature range tested, 60° to 80° F. Corn yields appeared to increase with increases in soil temperature up to a point and then decreased with further increases in soil temperature. The most favorable soil temperature at the 4-inch depth for corn growth in central Iowa appears to be about 75° F.
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