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This article in AJ

  1. Vol. 52 No. 8, p. 443-446

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Relationship of Nitrogen and Grain Sorghum Yield Under Three Moisture Regimes1

  1. A. C. Mathers,
  2. F. G. Viets,
  3. M. E. Jensen and
  4. W. H. Sletten22



This study indicated that sorghum yields can be predicted from nitrate analyses. A sampling depth of 4 feet seems necessary. Soil tests for N are of limited value in semiarid or arid areas without irrigation. Near maximum yields were obtained from 140 pounds of nitrate or nitrate plus fertilizer N per acre.

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