Crop Input Response Functions with Stochastic Plateaus

Gelson Tembo, B Brorsen, Francis Epplin () and Emílio Tostão

American Journal of Agricultural Economics, 2008, vol. 90, issue 2, 424-434

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.

Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ajagec:v:90:y:2008:i:2:p:424-434

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