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Experiments conducted by RICEMAPP
Tamotsu SEIJI, JICA expert
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Experiments and other field activities in 2012
Different timing of Nitrogen fertilizer application Effect of rice bran application for weed control Different ratoon-ability in different plant types and planting spacing Demonstration of Non-tillage rice cultivation Demonstration of HYMERIC (Germination habit of Basmati 370) コスト低減をテーマに行っている。
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Different timing of Nitrogen fertilizer application
Recommendation of top-dressing : 45 – 50 days after sowing. Top-dressing aiming to maintain “young panicle formation stage”. Safer timing of top-dressing: Heading stage 45-50 days
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Different timing of Nitrogen fertilizer application
Data collection is still on going. But, no significant difference on yield. Since farmers in MIS practicing dense planting, combination of fertilizer and spacing will be tried in next season.
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Effect of rice bran on weed control
Rice bran application (1t/ha) at 5 days after transplanting is effective to control growth of weeds. T1 control T2 500kg/ha T3 1t/ha T4 2t/ha
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Effect of rice bran on weed control
Weeds grown were taken and dried weight were checked. T2 – T4 had less amount of weeds than T1. But no significant difference. Farmers in MIS do not irrigate their fields after T/P.
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Non-tillage Rice Cultivation
To reduce field preparation cost For smooth operation of transplanting Previous hills/ratoons were killed by herbicide BS X 20cm Yield : 3t/ha
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HYMERIC To reduce labor cost for transplanting
Seedlings are raised in carbonized husks for 5days NERICA varieties Higher establishment rate
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Germination of BS370 During experimental works, BS 370 showed lower germination rate.
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Moisture content 30% G A phase Time B phase C phase Water absorption Preparation of Germination Vegetative Growth
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Germination of BS370 10g of seeds for 4 varieties were prepared.
Moisture content were checked and dried weight of seeds were calculated. Seeds were soaked into water. Each sample was drained and weighed every 3 hours for 30 hours.
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Thank You!
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