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Nitrogen Carry-over Impacts in Irrigated Cotton Production, Southern High Plains of Texas
Eduardo Segarra, Don E. Ethridge, Curtis R. Deussen and Arthur B. Onken
Western Journal of Agricultural Economics
Vol. 14, No. 2 (December 1989), pp. 300-309
Published by: Western Agricultural Economics Association
Stable URL: http://www.jstor.org/stable/40988109
Page Count: 10
You can always find the topics here!Topics: Nitrogen, Cotton, Prices, Crop production, Crop economics, Net present value, Irrigation, Plains, Soil resources, Dynamic modeling
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A dynamic optimization model which introduces an intertemporal nitrate-nitrogen residual function is used to derive and evaluate nitrogen fertilizer optimal decision rules for irrigated cotton production in the Southern High Plains of Texas. Results indicate that optimal nitrogen applications critically depend on initial nitrate-nitrogen levels and nitrogen-to-cotton price ratios. Also, the results indicate that single-year optimization leads to suboptimal nitrogen applications, which helps explain long-term cotton yield declines in the Southern High Plains of Texas; but single-year optimization does not significantly impact the net present value of returns of irrigated cotton operations.
Western Journal of Agricultural Economics © 1989 Western Agricultural Economics Association