Which policy would work better for improved soil fertility management in sub-Saharan Africa, fertilizer subsidies or carbon credits?
Why do many smallholder farmers fail to adopt improved land management practices which can improve yields and incomes? The reason is not always because these practices are uneconomical but sometimes it is because resource poverty prevents farmers from taking advantage of yield and income enhancing agricultural practices. In this study we examine the relative merits of using a carbon payment scheme compared to a subsidy policy to help reduce the cost of specific land management practices with productivity and ecosystem benefits such as carbon sequestration. Using a 30-year crop simulation model, we examine the impacts of different soil fertility management treatments (SFTs) on yields and soil carbon and proceed to compute discounted incremental revenue streams over the same period. We find that the SFTs simulated are on average profitable given the conditions assumed in our DSSAT simulations. When carbon was priced at $8 or $12/t CO2e, the increase in incremental incomes generated from a carbon payment were invariably higher than those imputed from a 50% fertilizer subsidy. When carbon was priced at $4/Co2e, the increase was almost similar and sometimes higher than that from the imputed income transfer from a 50% subsidy. If these indications hold in further research, it could imply that using fertilizer subsidies as the sole mechanism for stimulating adoption of improved soil fertility management practices may unnecessarily forgo other complementary and possibly superior alternatives. Depending on the specific economic equity considerations, we conclude that either of these instruments can be used to help farmers break through resource barriers that prevent them from adopting productivity-enhancing and environmentally beneficial agricultural practices. However, given the fiscal burden on public finances and possible opportunity costs of any substantial subsidy program, it is possible that a carbon payment system can be a reasonable alternative assuming the range of carbon prices used in this study and especially if accompanied by measures to ameliorate the costs of fertilizer to farmers.
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- Paul Vlek & Gabriela Rodríguez-Kuhl & Rolf Sommer, 2004. "Energy Use and CO 2 Production in Tropical Agriculture and Means and Strategies for Reduction or Mitigation," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 6(1), pages 213-233, March.
- Tewodaj Mogues, 2011.
"The Bang for the Birr: Public Expenditures and Rural Welfare in Ethiopia,"
Journal of Development Studies,
Taylor & Francis Journals, vol. 47(5), pages 735-752.
- Mogues, Tewodaj & Ayele, Gezahegn & Paulos, Zelekawork, 2007. "The bang for the birr: Public expenditures and rural welfare in Ethiopia," IFPRI discussion papers 702, International Food Policy Research Institute (IFPRI).
- Mogues, Tewodaj & Ayele, Gezahegn & Paulos, Zelekawork, 2008. "The bang for the birr: Public expenditures and rural welfare in Ethiopia," Research reports 160, International Food Policy Research Institute (IFPRI).
- Paswel P. Marenya & Christopher B. Barrett, 2009. "State-conditional Fertilizer Yield Response on Western Kenyan Farms," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 91(4), pages 991-1006.
- repec:fpr:2020br:16(5 is not listed on IDEAS
- repec:fpr:2020br:16(1 is not listed on IDEAS
- Yesuf, Mahmud & di Falco, Salvatore & Deressa, Temesgen & Ringler, Claudia & Kohlin, Gunnar, 2008. "The impact of climate change and adaptation on food production in low-income countries: Evidence from the Nile Basin, Ethiopia," IFPRI discussion papers 828, International Food Policy Research Institute (IFPRI).
- repec:fpr:resbrf:15(11 is not listed on IDEAS
- Haggblade, Steven & Dewina, Reno, 2010. "Staple food prices in Uganda," Food Security Collaborative Working Papers 58553, Michigan State University, Department of Agricultural, Food, and Resource Economics.
- Michael Morris & Valerie A. Kelly & Ron J. Kopicki & Derek Byerlee, 2007. "Fertilizer Use in African Agriculture : Lessons Learned and Good Practice Guidelines," World Bank Publications, The World Bank, number 6650, April.
- Franck Lecocq & Karan Capoor, "undated". "State and Trends of the Carbon Market 2003," World Bank Other Operational Studies 13416, The World Bank.
- repec:wbk:wboper:13404 is not listed on IDEAS
- Perez, Carlos & Roncoli, Carla & Neely, Constance & Steiner, Jean L., 2007. "Can carbon sequestration markets benefit low-income producers in semi-arid Africa? Potentials and challenges," Agricultural Systems, Elsevier, vol. 94(1), pages 2-12, April.
- Yesuf, Mahmud & Di Falco, Salvatore & Deressa, Temesgen & Ringler, Claudia & Kohlin, Gunnar, 2008. "The impact of climate change and adaptation on food production in low-income countries: Evidence from the Nile Basin, Ethiopia [in Amharic]," Research briefs 15(11)AMH, International Food Policy Research Institute (IFPRI).
- Nelson, Gerald C., 2009. "Agriculture and climate change: An agenda for negotiation in Copenhagen," 2020 vision focus 16, International Food Policy Research Institute (IFPRI).
- Andre Croppenstedt & Mulat Demeke & Meloria M. Meschi, 2003. "Technology Adoption in the Presence of Constraints: the Case of Fertilizer Demand in Ethiopia," Review of Development Economics, Wiley Blackwell, vol. 7(1), pages 58-70, February.
- John M. Antle & Bocar Diagana, 2003. "Creating Incentives for the Adoption of Sustainable Agricultural Practices in Developing Countries: The Role of Soil Carbon Sequestration," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 85(5), pages 1178-1184.
- Karan Capoor & Philippe Ambrosi, "undated". "State and Trends of the Carbon Market 2008," World Bank Other Operational Studies 13405, The World Bank.
- Bationo, Andre & Kihara, Job & Vanlauwe, Bernard & Waswa, Boaz & Kimetu, Joseph, 2007. "Soil organic carbon dynamics, functions and management in West African agro-ecosystems," Agricultural Systems, Elsevier, vol. 94(1), pages 13-25, April.
- World Bank, 2008. "Sustainable Land Management Sourcebook," World Bank Publications, The World Bank, number 6478, April.
- Cacho, Oscar J. & Marshall, Graham R. & Milne, Mary, 2005. "Transaction and abatement costs of carbon-sink projects in developing countries," Environment and Development Economics, Cambridge University Press, vol. 10(05), pages 597-614, October.
- Melanie Requier-Desjardins, 2006. "The economic costs of desertification: a first survey of some cases in Africa," International Journal of Sustainable Development, Inderscience Enterprises Ltd, vol. 9(2), pages 199-209. Full references (including those not matched with items on IDEAS)
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