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Fertilizer Demand Functions for Five Crops in the United States

Published online by Cambridge University Press:  28 April 2015

Kisan R. Gunjal ,
Roland K. Roberts  and
Earl O. Heady
Kisan R. Gunjal
Affiliation:
Center for Agricultural and Rural Development, Iowa State University
Roland K. Roberts
Affiliation:
University of Hawaii
Earl O. Heady
Affiliation:
Center for Agricultural and Rural Development, Iowa State University
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Extract

Fertilizer consumption by the U.S. agricultural sector has increased dramatically for several decades. Nitrogen fertilizer use increased 632 percent between 1952 and 1976. Phosphate and potash fertilizer use increased 138 and 229 percent, respectively, in the same period (USDA 1978). However, the upward trend in fertilizer use was temporarily interrupted during the early and mid-1970s as the real fertilizer price began to increase after many years of decline.

Higher levels of aggregate fertilizer consumption over the 1952–1976 period outweighed the decline in the real price of fertilizer as real dollar expenditures for fertilizer continued to rise. Our study includes an attempt to relate fertilizer use for different crops to relevant economic variables.

Type
Research Article
Information
Journal of Agricultural and Applied Economics , Volume 12 , Issue 2 , December 1980 , pp. 111 - 116
Copyright
Copyright © Southern Agricultural Economics Association 1980

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