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Abstract

 

This article in SSSAJ

  1. Vol. 41 No. 2, p. 382-385
     
    Received: May 28, 1976
    Accepted: Oct 19, 1976


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doi:10.2136/sssaj1977.03615995004100020043x

Characterization of Yield and Economic Loss from Nonuniform Fertilizer Distribution Using Computer Simulation1

  1. R. C. Sorensen and
  2. R. A. Wiese2

Abstract

Abstract

A simple computer program has been developed to predict yield losses from uneven broadcast fertilizer distribution on the basis of distribution pattern, yield response curve, fertilizer rate, soil test rating and amount of fertilizer swath overlap.

Losses were serious only on soils classed “very low” in nutrient supply. Losses for a highly responsive crop are less than for a less responsive crop. Overlapping succeeding swaths may improve the appearance of a field, but has a small effect on yield loss unless the amount of overlap is > 50%. Visually evident streaks in plant growth patterns may not necessarily indicate high yield loss.

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