Proceedings of the Korean Society of Crop Science Conference (한국작물학회:학술대회논문집)
- 2017.06a
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- Pages.336-336
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- 2017
Farmer's friendly technique of raising mat type healthy seedling in cold environment
- Ansari, Tahmid Hossain (Bangladesh Rice Research Institute (BRRI)) ;
- Ahmed, Montasir (Bangladesh Rice Research Institute (BRRI)) ;
- Ali, Md. Ansar (Bangladesh Rice Research Institute (BRRI))
- Published : 2017.06.04
Abstract
High mortality and slow growth of seedling generally occurred in tray due to cold, foggy weather and severe seedling blight. Mechanical transplanting is hampered, farmers having economic loss. A sustainable method for raising mat type seedling is necessary. Experiments were conducted on disease control and seedling growth in dry seasons. Fungicides treated/untreated seeds were sown 120-130g in each tray containing pulverized fine grain loam/sandy loam soils. Seed covered with a thin layer of soil and irrigated. It was polythene covered (PC) for 72h and then every night along with 2/3 sprinkler irrigation (SI) per day. Untreated seedlings infected 53-93%. Pyraclostrobin, Azoxystrobin and Azoxystrobin+Difeconazole treated seeds/sprayed (72h) seedlings had no disease. Seedling height was 11.7-13.2 cm with compact and thick root mat at 25 days. Seeds treated at 0.2-0.3% (18-20h) showed no disease but severely in untreated seeds in all locations. Seedling height (13.8 cm), leaf age (3.7) and root number (8.5) were better when NPK were applied at 3-4-3 g/tray. Spraying of urea (1%) in addition with MOP, theovit and