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Soil Conservation Decisions and Upland Corn Productivity: A Philippine Case Study

Author

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  • Rola, Agnes C.
  • Sajise, Asa Jose U.
  • Harder, Dieldre S.
  • Alpuerto, Joe Marvin P.

Abstract

This paper empirically investigates whether farmers who adopt soil conservation measures derive productivity gains. A twelve-year (1994-2006) panel data in Bukidnon, Philippines was used to quantify the indirect relationship between soil conservation technology adoption and upland corn productivity. A two-stage econometric analysis was done. First, the probability of adoption was estimated. The associated inverse Mill’s ratio obtained from the fi rst stage was used to correct the second stage endogenous switching stochastic frontier model estimation of the determinants of corn yield. Results showed that in normal times, upland corn productivity is positively affected by abatement of soil erosion. Results further suggest that farmers adopting soil conservation technologies become less flexible in their land use decisions during periods of drought, thereby experiencing lower yields than the non-adopters.

Suggested Citation

  • Rola, Agnes C. & Sajise, Asa Jose U. & Harder, Dieldre S. & Alpuerto, Joe Marvin P., 2009. "Soil Conservation Decisions and Upland Corn Productivity: A Philippine Case Study," Asian Journal of Agriculture and Development, Southeast Asian Regional Center for Graduate Study and Research in Agriculture (SEARCA), vol. 6(2), pages 1-20, December.
    • Handle: RePEc:ags:phajad:199073
    DOI: 10.22004/ag.econ.199073
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    File URL: https://ageconsearch.umn.edu/record/199073/files/AJAD_2009_6_2_1Rola.pdf
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    References listed on IDEAS

    as
    1. Gerpacio, Roberta V. & Labios, Jocelyn D. & Labios, Romeo V. & Diangkinay, Emma I., 2004. "Maize in the Philippines: Production Systems, Constraints, and Research Priorities," Maize Production Systems Papers 7650, CIMMYT: International Maize and Wheat Improvement Center.
    2. John Fitzgerald & Peter Gottschalk & Robert Moffitt, 1998. "An Analysis of Sample Attrition in Panel Data: The Michigan Panel Study of Income Dynamics," Journal of Human Resources, University of Wisconsin Press, vol. 33(2), pages 251-299.
    3. Rola, Agnes C. & Coxhead, Ian, 2002. "Does Nonfarm Job Growth Encourage or Retard Soil Conservation in Philippine Uplands?," Philippine Journal of Development PJD 2002 Vol. XXIX No. 1-, Philippine Institute for Development Studies.
    4. Becketti, Sean & Gould, William & Lillard, Lee & Welch, Finis, 1988. "The Panel Study of Income Dynamics after Fourteen Years: An Evaluatio n," Journal of Labor Economics, University of Chicago Press, vol. 6(4), pages 472-492, October.
    5. Coxhead, Ian, 2002. "Development and the Upland Resource Base: Economic and Policy Context, and Lessons from a Philippine Watershed," Philippine Journal of Development PJD 2002 Vol. XXIX No. 1-, Philippine Institute for Development Studies.
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    Cited by:

    1. Phetcharat, Chaowana & Chalermphol, Juthathip & Siphumin, Phuphing & Khempet, Saibua, 2017. "The Determinants of Farmers� Cropping Systems Adoption: A Case of the Upland Farmers in Northern Thailand," Asian Journal of Applied Economics, Kasetsart University, Center for Applied Economics Research, vol. 24(2), November.

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