Silvopastoral System Economical and Financial feasibility with Jatropha curcas L. in Manab?-, Ecuador

摘要

Objective. To assess the economic and financial feasibility of traditional silvopastoral systems for the biofuels production as a contribution to the sustainability of “Pi?±?3n for Galapagos” project. Materials and methods. A survey was conducted to 450 small livestock producer in 10 cantons of the Manab?- province in order to collect basic agronomic knowledge, management, establishment and costs involved in production of the Pi?±?3n ((Jatropha curcas L.)/Savoy (Megathyrsus maximus) silvopastoral systems. For Pi?±?3n CP041 production recording plantation in live fence were stablished and for the tradition Pi?±?3n, the production of 10 sites were recorded, both systems since 2009. With those data were calculated the following economic indicators: ratio benefit/cost, net present value (NPV), internal rate ratio (IRR) and land expectation value (LEV). Results. The study exhibited a production decrease of Pi?±?3n with the passage of time. The CP041 INIAP improved silvopastoral system Pi?±?3n showed a B/C 1.07, NPV of USD$ 404.11, LEV US$ 970.23 and IRR of 18%. Followed by silvopastoral system with a local Pi?±?3n with a B/C 1.06, NPV of USD$ 363.66, LEV USD$ 873.10 and IRR of 17% and finally silvopastoral system without harvesting Pi?±?3n with a B/C 1.05, NPV of USD$ 285.72, LEV USD$ 685.99 and IRR of 15%. Conclusions. The alternative biofuels production was the silvopastoral systems (INIAP CP041)/Savoya in Manab?- and is economically feasible. This system does not compete for arable land for food production and would not affect food security.