The effects of pumping on water use and profitability in dry-season rice: a case study in UPRIIS, Philippines
2002
Moya, P.F. | Dawe, D. | Valencia, S.
Farmers in many parts of Asia are increasingly using pumps to irrigate their rice crops. This has occurred because pumps have become less expensive and because of an increased scarcity of gravity-flow surface water. One such system is the Upper Pampanga River Integrated Irrigation System in Nueva Ecija, Philippines, where this study was conducted. Inspite of the high cost of pumping water, pump users in our survey still received a substantial amount of farm profits from rice production, although less than those with good access to a surface gravity system. There are no significant differences in yields or input use between farms irrigated by pumps and the surface gravity system, with the exception of water use. Farms that rely on pumping irrigate fewer times and have a lower degree of flooding. Land rents are higher for farms with good access to gravity-flow water compared with farms that rely heavily on pumping. It is important to note that the findings of this study are applicable only to this specific site, especially since rice prices are susbtantially higher in the Philippines than in neighboring countries. Additional studies on the conomic and water management effects of pumping in different parts of Asia would provide useful information.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил International Rice Research Institute