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Crop Input Response Functions with Stochastic Plateaus

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Listed:
  • Gelson Tembo
  • B. Wade Brorsen
  • Francis M. Epplin
  • Emílio Tostão

Abstract

Agronomic research on crop response to nitrogen fertilizer suggests that a plateau function may be appropriate, but the plateau varies across fields and years. Available models that treat the plateau as a stochastic variable are not readily extendable to handle field or year random effects as seems to be appropriate based on the agronomic data. This article develops a method of estimating a response function with a stochastic plateau that can capture random effects. The method is then used to determine economically optimal levels of nitrogen fertilizer for wheat (Triticum aestivum). Copyright 2008, Oxford University Press.

Suggested Citation

  • Gelson Tembo & B. Wade Brorsen & Francis M. Epplin & Emílio Tostão, 2008. "Crop Input Response Functions with Stochastic Plateaus," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 90(2), pages 424-434.
  • Handle: RePEc:oup:ajagec:v:90:y:2008:i:2:p:424-434
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    File URL: http://hdl.handle.net/10.1111/j.1467-8276.2007.01123.x
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