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Heterogeneous treatment effects of integrated soil fertility management on crop productivity: Evidence from Nigeria

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  • Kato, Edward
  • Nkonya, Ephraim
  • Place, Frank M.

Abstract

This study compares the impacts of integrated soil fertility management (ISFM) on crop production with use of either mineral fertilizer or organic manure alone. We also investigate the conditions under which .ISFM technology has greater beneficial effects on yields and the factors constraining its uptake. To answer these questions, the study uses a cross-sectional, plot-level data set collected in Nigeria by the International Food Policy Research Institute and the World Bank in 2009. Using both quasi experimental matching estimators and multivariate regression approaches, it finds that overall ISFM has robustly significant positive effects on crop production. The study also finds that ISFM positively affects crop production on plots with customary tenure, sandy soils, and clay soils—conditions that are normally perceived to be less favorable for crop production. The results also show ISFM to be more effective on plots with mild erosion or no erosion. On the constraints, we find that households with limited livestock, equipment, labor, and land are less likely to use ISFM technology, and the extension services currently do not seem to be disseminating ISFM. This evidence provides strong support for efforts to promote ISFM in Nigeria and in other regions with comparable conditions, but adequate attention must be paid to the biophysical conditions of the plots and the household's access to labor endowments, livestock, equipment, and tenure conditions if this technology is to be scaled up and more widely used in Sub-Saharan Africa.

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Bibliographic Info

Paper provided by International Food Policy Research Institute (IFPRI) in its series IFPRI discussion papers with number 1089.

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Date of creation: 2011
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Handle: RePEc:fpr:ifprid:1089

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Keywords: Crop production; Integrated soil fertility management; matching estimators;

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  1. Pender, John L. & Gebremedhin, Berhanu & Benin, Samuel & Ehui, Simeon, 2001. "Strategies for sustainable agricultural development in the Ethiopian Highlands:," EPTD discussion papers 77, International Food Policy Research Institute (IFPRI).
  2. Gebremedhin, Berhanu & Swinton, Scott M., 2003. "Investment in soil conservation in northern Ethiopia: the role of land tenure security and public programs," Agricultural Economics, Blackwell, vol. 29(1), pages 69-84, July.
  3. Menale Kassie & John Pender & Mahmud Yesuf & Gunnar Kohlin & Randy Bluffstone & Elias Mulugeta, 2008. "Estimating returns to soil conservation adoption in the northern Ethiopian highlands," Agricultural Economics, International Association of Agricultural Economists, vol. 38(2), pages 213-232, 03.
  4. Kato, Edward & Ringler, Claudia & Yesuf, Mahmud & Bryan, Elizabeth, 2009. "Soil and water conservation technologies: A buffer against production risk in the face of climate change?: Insights from the Nile Basin in Ethiopia," IFPRI discussion papers 871, International Food Policy Research Institute (IFPRI).
  5. Nkonya, Ephraim & Pender, John & Kaizzi, Kayuki C. & Kato, Edward & Mugarura, Samuel & Ssali, Henry & Muwonge, James, 2008. "Linkages between land management, land degradation, and poverty in Sub-Saharan Africa: The case of Uganda," Research reports 159, International Food Policy Research Institute (IFPRI).
  6. Kato, Edward & Nkonya, Ephraim & Place, Frank & Mwanjalolo, Majaliwa, 2010. "An econometric investigation of impacts of sustainable land management practices on soil carbon and yield risk: A potential for climate change mitigation," IFPRI discussion papers 1038, International Food Policy Research Institute (IFPRI).
  7. Jansen, Hans G. P. & Pender, John L. & Damon, Amy & Schipper, Rob, 2006. "Rural development policies and sustainable land use in the hillside areas of Honduras: a quantitative livelihoods approach," Research reports 147, International Food Policy Research Institute (IFPRI).
  8. Pender, John & Ssewanyana, Sarah & Edward, Kato & Nkonya, Ephraim M., 2004. "Linkages between poverty and land management in rural Uganda: evidence from the Uganda National Household Survey, 1999/00," EPTD discussion papers 122, International Food Policy Research Institute (IFPRI).
  9. Abdul Wadud & Ben White, 2000. "Farm household efficiency in Bangladesh: a comparison of stochastic frontier and DEA methods," Applied Economics, Taylor & Francis Journals, vol. 32(13), pages 1665-1673.
  10. Battese, George E., 1992. "Frontier production functions and technical efficiency: a survey of empirical applications in agricultural economics," Agricultural Economics, Blackwell, vol. 7(3-4), pages 185-208, October.
  11. Tzouvelekas, Vangelis & Pantzios, Christos J. & Fotopoulos, Christos, 2001. "Technical efficiency of alternative farming systems: the case of Greek organic and conventional olive-growing farms," Food Policy, Elsevier, vol. 26(6), pages 549-569, December.
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