Transpiration and Evapotranspiration of Corn as Related to Meteorological Factors1

Synopsis The plastic film, covering the ground, which was used to suppress evaporation also altered the micro‐climate. To obtain values of transpiration for the natural plots, the transpiration measured in the plastic‐covered plots was adjusted using the ratios of energy intercepted by the plant canopies. It was found that the adjusted transpiration was .89 of evapotranspiration. Without adjustment, it was .73 of evapotranspiration.