Crop Input Response Functions with Stochastic Plateaus

Posted: 11 Apr 2008

See all articles by Gelson Tembo

Gelson Tembo

affiliation not provided to SSRN

B. Wade Brorsen

Oklahoma State University - Stillwater - Department of Agricultural Economics

Francis Epplin

Oklahoma State University - Stillwater - Department of Agricultural Economics

EmÍlio Tostão

affiliation not provided to SSRN

Date Written: 2007-09

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).

Suggested Citation

Tembo, Gelson and Brorsen, B. Wade and Epplin, Francis and Tostão, EmÍlio, Crop Input Response Functions with Stochastic Plateaus (2007-09). American Journal of Agricultural Economics, Vol. 90, No. 2, pp. 424-434, May 2008, Available at SSRN: https://ssrn.com/abstract=1119014 or http://dx.doi.org/10.1111/j.1467-8276.2007.01123.x

Gelson Tembo (Contact Author)

affiliation not provided to SSRN ( email )

B. Wade Brorsen

Oklahoma State University - Stillwater - Department of Agricultural Economics ( email )

Stillwater, OK 74078-6026
United States
405-744-6836 (Phone)
405-744-8210 (Fax)

Francis Epplin

Oklahoma State University - Stillwater - Department of Agricultural Economics ( email )

Stillwater, OK 74078-6026
United States

EmÍlio Tostão

affiliation not provided to SSRN

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