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Determinants of herbicide use in rice production in the Philippines
Article first published online: 6 DEC 2012
© 2012 International Association of Agricultural Economists
Volume 44, Issue 1, pages 45–55, January 2013
How to Cite
Beltran, J. C., White, B., Burton, M., Doole, G. J. and Pannell, D. J. (2013), Determinants of herbicide use in rice production in the Philippines. Agricultural Economics, 44: 45–55. doi: 10.1111/j.1574-0862.2012.00631.x
- Issue published online: 8 JAN 2013
- Article first published online: 6 DEC 2012
- Received 26 May 2011; received in revised form 13 June 2012; accepted 14 September 2012
- Herbicide use;
- Double-hurdle model;
- Adoption of innovations;
- Integrated weed management
This study identifies farm-specific and market factors affecting the adoption of herbicides and the level of herbicide use by rice farmers in the Philippines. This requires the application of a modified version of Heckman's two-step method to estimate a random-effects double-hurdle model for unbalanced panel data. The age of the farmer, household size, and irrigation use are significant determinants of the decision of farmers to adopt herbicides as an alternative to manual weeding, while economic variables such as the price of herbicides, total income, and access to credit determine the level of herbicide use. Determinants of both adoption and level are land ownership, farm area, and the method of crop establishment. These results are potentially relevant when designing policies to reduce excessive herbicide use or to encourage the adoption of alternative weed control methods such as integrated weed management.