On-farm evaluation of a low-input rice production system in Panama
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On-farm trials were conducted to evaluate the potential of the System of Rice Intensification (SRI), a low-input crop management system, to increase rice yields and reduce water consumption on subsistence farms in several regions of Panama and to determine how inherent soil fertility might affect SRI yields and the yield response to SRI management in the first season of SRI management. SRI practices increased yield by 47% on average and showed potential to increase yield by over 90%, while reducing water consumption by as much as 86%. SRI yields were correlated with available soil K and the difference between SRI and the conventional system yields was positively correlated with extractable Ca, Mg and Mn. The results of this study indicate that SRI is a promising rice production system for smallholder farmers in rural Panama farming under Panamanian soil conditions.
KeywordsLow-input agriculture Panama Potassium Rice Soil fertility System of Rice Intensification (SRI)
The funding for this research was provided by the International Development Research Center and the National Sciences and Engineering Research Council of Canada.
- Barison J (2003) Nutrient-use efficiency and nutrient uptake in conventional and intensive (SRI) rice cultivation systems in Madagascar. Cornell University, IthacaGoogle Scholar
- Chang JVG (2008) Cultivo de arroz sistema intensificado SICA—SRI en ecuador. Fundación para el Desarrollo Agrícola del EcuadorGoogle Scholar
- CIIFAD (2010) http://www.ciifad.Cornell.Edu/sri/countries/index.Html. Accessed Cornell International Institute for Food, Agriculture and Development
- Dobermann A, Fairhurst T (2000) Rice. Nutrient disorders & nutrient management. Handbook series. Potash & Phosphate Institute (PPI), Potash & Phosphate Institute of Canada (PPIC) International Rice Research Institute, SingaporeGoogle Scholar
- Gehring C, de Moura EG, Boddey RM (2008) System of rice intensification (SRI) in southeastern lowlands of Amazonia—a viable alternative for smallholder irrigated rice production? Maranhão State University and National Agrobiology Research Center, BrazilGoogle Scholar
- Government of Panama (2003) Encuesta de niveles de vida. Ministerio de Economía y Finanzas, Dirección de Políticas Sociales, Panama CityGoogle Scholar
- Name B, Villarreal J (2004) Dinamica de potasio en un Ultisol de Panama repuesta al cultivo de arroz. In: Compendio de resultados de investigacion del programa de suelos de IDIAP. Instituto de Investigacion Agropecuaria de Panama, PanamaGoogle Scholar
- Perez R (2002) Experience in Cuba with the System of Rice Intensification. Paper presented at the Assessments of the System of Rice Intensification (SRI), Sanya, China, April 1–4, 2002Google Scholar
- Schoumans O (2000) Determination of the degree of phosphorus saturation in non-calcareous soils. Methods of phosphorus analysis for soils, sediments, residuals and waters. Southern Cooperative Series Bulletin No 396Google Scholar
- Van Wambeke A (1992) Soils of the tropics: properties and appraisal. McGraw-Hill, Inc., New YorkGoogle Scholar
- Wang S-h, Cao W, Jiang D, Dai T, Zhu Y (2002) Physiological characteristics and high-yield techniques with SRI rice. Paper presented at the assessments of the System of Rice Intensification (SRI), Sanya, China, April 1–4, 2002Google Scholar