Methods of farming, varieties and profitability of producing directly-seeded inbred and hybrid rice under rainfed lowland conditions
2008
Gutierrez, B.A. | Albaladejo, V.E. | Launio, F.D., Capiz State Univ., Mambusao, Capiz (Philippines)
Farming methods, varieties and seasons influence the growth, yield and profitability of direct-seeded rice under rainfed lowland conditions. Two farming methods (conventional and organic), and 3 varieties (NSIC Rc 110, IR64 and NSIC Rc 124H) were grown in 2006-2007 wet and dry seasons planting to determine the agronomic performance, production costs and profitability. Methods of farming affected the growth but not the yield of rice during WS and DS planting. The conventional farming method (CFM) produced the most number of productive tillers than organic farming method (OFM). NSIC Rc 124H (hybrid) produced longer panicle and more spikelets per panicle when grown in CFM during WS planting. Lowland rice varieties affected both the growth and yield components. NSIC Rc 110 (inbred) produced the heaviest straw, most number of productive tillers and filled grain per panicle and heaviest grain yield during WS. However, NSIC Rc 110 and IR64 had comparable number of productive tillers, filled grains per panicle and 1000- gram weight but higher than NSIC Rc 124H in DS planting. The CFM had higher costs of production than CFM about 13% in WS and 17.3% in DS planting. Amongst varieties and across seasons, NSIC Rc 110 grown in OFM obtained the highest cost of production but when grown in CFM, it obtained the highest net income of PhP 27,604.00/ha, and added benefit of PhP 15,261.00/ha. Furthermore, NSIC Rc 110 obtained a higher acceptable index of profitability (R01) of 59% in OFM and 79% in CFM during WS planting. Thus, NSIC Rc 110 can be grown either in CFM and OFM which can still perform better with higher profit in both planting seasons under rainfed lowland conditions.
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