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Dynamic Analysis of Soil Fertility Improvement: A Bioeconomic Model for Senegal

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Author Info
Bocar N. Diagana (Department of Agricultural Economics, Michigan State University)
Valerie A. Kelly ()
Eric W. Crawford

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Abstract

This paper reports on a bioeconomic modeling exercise that analyzes the dynamic effects of fertilizer use and employs the results to answer fertilizer policy questions. Using data from the Senegalese Peanut Basin, the model (1) simulates yield and soil nutrient impacts of selected cropping practices, and (2) integrates the simulated yield and soil nutrient outcomes into a multi-period linear programming model (LPM) that takes into account current and future input/output prices, and farm household resources and objectives. The model results are used to address two important questions facing Senegalese policymakers: (1) Are recent price, credit and capital transfer policies in Senegal likely to encourage farmers to increase fertilizer use over time? And (2) Will the optimal cropping practices identified by the LPM have a positive impact on the soil macro-nutrient stocks of N and P as well as on farm income?

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Publisher Info
Paper provided by Department of Agricultural Economics, Michigan State University in its series International Development Policy Syntheses with number 58.

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Date of creation: 2001
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Handle: RePEc:msu:polbrf:058

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Related research
Keywords: food security; food policy; fertilizer use;

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Find related papers by JEL classification:
O18 - Economic Development, Technological Change, and Growth - - Economic Development - - - Regional, Urban, and Rural Analyses

References listed on IDEAS
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  1. Shapiro, B. I. & Sanders, J. H., 1998. "Fertilizer use in semiarid West Africa: Profitability and supporting policy," Agricultural Systems, Elsevier, vol. 56(4), pages 467-482, April. [Downloadable!] (restricted)
  2. Larson, Bruce A. & Frisvold, George B., 1996. "Fertilizers to support agricultural development in sub-Saharan Africa: what is needed and why," Food Policy, Elsevier, vol. 21(6), pages 509-525, December. [Downloadable!] (restricted)
  3. Diagana, Bocar & Kelly, Valerie, 1996. "Will The Cfa Franc Devaluation Enhance Sustainable Agricultural Intensification In The Senegalese Peanut Basin?," Food Security III Papers 11314, Michigan State University, Department of Agricultural, Food, and Resource Economics. [Downloadable!]
  4. Diagana, Bocar & Kelly, Valerie, 1996. "Will the CFA Franc Devaluation Enhance Sustainable Agricultural Intensification in the Senegalese Peanut Basin?," Food Security III Papers 11423, Michigan State University, Department of Agricultural, Food, and Resource Economics. [Downloadable!]
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