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This article in AJ

  1. Vol. 55 No. 3, p. 295-298
    Received: Oct 8, 1962

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Irrigation Water Management and Nitrogen Fertilization of Grain Sorghums1

  1. J. T. Musick,
  2. D. W. Grimes and
  3. G. M. Herron2



Grain yields were curvilinearly related to the number of irrigations, depletion of soil moisture, and increments of applied N. Evapotranspiration was related to number of irrigations and to available soil moisture. Plant growth response to applied N increased evapotranspiration slightly. Irrigation and applied N both increased the efficiency of water use. Maximum efficiency occurred at a yield level below maximum production.

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