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Impacts of Site-Specific Nutrient Management in Irrigated Rice Farms in the Red River Delta, Northern Vietnam


  • Rodriguez, Divina Gracia P.
  • Nga, Nguyen Thi Duong


This study estimates the impact of the adoption of SSNM practices on rice production of smallholder farmers in Vietnam using cross-section household data (n = 371) gathered from the provinces of Ha Nam and Ha Tay in the Red River Delta. Specifically, it investigates the economic impact of SSNM, focusing on SSNM-induced changes in the yield, profit, nitrogen use and pesticide use of farmers. The instrumental variables (IV) approach is used to achieve this objective because it deals with endogeneity and self-selection bias present in the study. SSNM improves the paddy yield of farmers by 0.6 tons per hectare and profit by $150 per hectare. It has no statistically significant effect on the amount of pesticide and nitrogen use of farmers. The higher profits for adopters versus non-adopters of SSNM arise from increased grain yield rather from reducing fertilizer costs and pesticide costs. Results of the impact analysis identified several directions that can be pursued to improve further the adoption of SSNM.

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  • Rodriguez, Divina Gracia P. & Nga, Nguyen Thi Duong, 2012. "Impacts of Site-Specific Nutrient Management in Irrigated Rice Farms in the Red River Delta, Northern Vietnam," 2012 Conference, August 18-24, 2012, Foz do Iguacu, Brazil 126759, International Association of Agricultural Economists.
  • Handle: RePEc:ags:iaae12:126759

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    References listed on IDEAS

    1. Mendola, Mariapia, 2007. "Agricultural technology adoption and poverty reduction: A propensity-score matching analysis for rural Bangladesh," Food Policy, Elsevier, vol. 32(3), pages 372-393, June.
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    5. Pampolino, M.F. & Manguiat, I.J. & Ramanathan, S. & Gines, H.C. & Tan, P.S. & Chi, T.T.N. & Rajendran, R. & Buresh, R.J., 2007. "Environmental impact and economic benefits of site-specific nutrient management (SSNM) in irrigated rice systems," Agricultural Systems, Elsevier, vol. 93(1-3), pages 1-24, March.
    6. Heckman, James, 2013. "Sample selection bias as a specification error," Applied Econometrics, Publishing House "SINERGIA PRESS", vol. 31(3), pages 129-137.
    7. Thomas M. Burrows, 1983. "Pesticide Demand and Integrated Pest Management: A Limited Dependent Variable Analysis," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 65(4), pages 806-810.
    8. Feder, Gershon & Just, Richard E & Zilberman, David, 1985. "Adoption of Agricultural Innovations in Developing Countries: A Survey," Economic Development and Cultural Change, University of Chicago Press, vol. 33(2), pages 255-298, January.
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    Site-specific nutrient management; instrumental variables; nitrogen; Red River Delta; smallholder farmers; Crop Production/Industries; Farm Management;

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