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This article in AJ

  1. Vol. 56 No. 6, p. 572-574
    Received: Apr 10, 1964

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Test of the De Wit Compensation Function for Estimating the Value of Different Fertilizer Placements1

  1. R. M. Singh and
  2. C. A. Black2



Statistically significant deviations from the “theoretical” value derived from the compensation function were obtained in a greenhouse test involving three levels each of P and water. Nevertheless, deviations were of the same order of magnitude as those ,encountered originally by De Wit, and the data confirm his view that the compensation function represents the results to a first approximation.

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