Upland crop production in rainfed lowland rice areas
1995
Labios, R.V. | Labios, J.D. | Villanco, V.T. | Salazar, A.M. | Delos Santos, R.E. (Philippines Univ. Los Banos, College, Laguna (Philippines). Farming Systems and Soil Resources Inst.)
The inadequacy of irrigation water supply during the dry season leaves vast rice areas idle in many parts of the Philippines. Production of high value crops may be one strategy to increase farmers' income during this time of the year. On-station trials were conducted at the University of the Philippines Los Banos (UPLB) testing two to four varieties each of mungbean, cowpea, sweetpotato, green corn and baby corn planted after wetland rice and three to four fertilizer rates. Simultaneously, on-farm trials were conducted in farmers' fields in Bulacan [Philippines]. Irrigation water from small farm reservoir, a small water impoundment structure (usually 1,000 sq m), was applied when needed. Two to four varieties each of mungbean, peanut, sweet potato and green corn, and three to four fertilizer levels, using bioorganic and inorganic fertilizers, were super-imposed in cropping pattern plots. Results showed that all the upland crops evaluated can be grown after lowland rice under UPLB condition, while it is only mungbean that did not perform well under Bulacan condition. Yield performance, however, differed for each crop. Combined use of bioorganic and inorganic fertilizer gave comparable yield to that of sole inorganic fertilizer use
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