Daytime Radiation Regimes within a Corn Canopy

Abstract

<p> A micrometeorological investigation was conducted over and within a crop of corn (Zea mays, var. Seneca Chief). The purpose of the experiment was to observe net radiation profiles within the canopy and to determine their behavior with respect to crop density. Discussion of the construction and evaluation of linear net radiometers for use in this study is included. The net radiation profiles are examined and compared with existing theoretical models. The form of the profiles is studied and a new model of net global radiation profiles based on micrometeorological data and crop parameters is discussed. </p>