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This article in AJ

  1. Vol. 53 No. 4, p. 259-261
     
    Received: Dec 5, 1960
    Published: July, 1961


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doi:10.2134/agronj1961.00021962005300040016x

Evapotranspiration and Heat Budget of a Cornfield1

  1. J. F. Gerber and
  2. W. L. Decker2

Synopsis

Synopsis

Comparison of the values obtained by the water balance and Penman heat budget methods indicated that the Penman method overestimated the evapotranspiration when the soil surface was dry, even though abundant subsurface moisture was present, but gave reliable estimates when the soil surface was wet. The failure of the Penman method when the soil surface was dry was due to the underestimation of the amount of sensible heat transferred to the atmosphere.

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