Synopsis Measurements of net radiant energy available for evaporation of water from soil under corn show that when corn is fully grown, the maximum evaporation may constitute 25 to 50% of the total evapotranspiration, depending upon the population and method of planting. Fully grown corn does not provide sufficient interception of radiation to assure that the potential evapotranspiration condition of a fully covered surface is realized.
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Tanner et al. (1960) studied this question.