Abstrakt: |
Data are assembled giving sinks of shortwave radiation within a corn crop canopy. From these data, and from net radiation measurements obtained at 225‐, 175‐, 100‐, and 20‐cm. heights within a crop of corn 300 cm. high, net thermal radiation is calculated at those respective heights. Transmission data at those heights, using a Miller field light transmission photometer, indicate that shortwave transmission can be expressed as an exponential function of height as well as of cumulative leaf area index. |