Crop diversification: Problems and prospects in partially irrigated rice based farming systems
1989
Gines, H. C. | Moya, T. B. | Pandey, R. K. | Carnagal, V. R.
A multidisciplinary on-farm research project was implemented in the service area of deepwell pump system at Barangay Bantung Guimba, Nueva Ecija in Central Luzon, Philippines. The project aimed to study techniques necessary to grow irrigated upland crops in rotation with wet season rice and to test the viability of these techniques with respect to agronomic, water management and socio-economic constraints. Agroecosystems of the research sites were analyzed for infrastructural, socio economical and technological constraints to crop diversification and intensification.Baseline survey revealed that farmers practice double rice cropping in the lower strata(lungog) and single rice in the upper strata (turod) landforms. The rice-rice patterns leads to undue pressure on water resources during the dry season. With the present water use efficiency (WUE) of 50% the irrigation systems could adequately irrigate only one-third of the programmed area for the dry season (DS) rice.Research results for three consecutive crop years have shown that, if all farmers switch to upland crops such as corn and mungbean during the DS, it would be possible to cultivate 75 and 100% of the service area at 50 and 80% WUE, respectively. Evaluation and integration of component technology for upland crops improved the cropping sequence, i.e. rice-corn mungbean and increased farmers income over existing cropping patterns.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل International Water Management Institute