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Relative efficiency of slow release and split application of nitrogenous fertilizers and weed control methods on yield of direct seeded upland rice



Relative efficiency of slow release and split application of nitrogenous fertilizers and weed control methods on yield of direct seeded upland rice



Oryza 15(2): 117-123



In trials with direct-sown upland rice Pusa 2-21 on sandy loam soil, the highest 2-yr av. paddy yields (800 kg/ha) were with 100 kg N/ha applied in 4 equal split dressings at sowing, and the late tillering, panicle primordial initiation and booting stages and were higher than with 100 kg N/ha as urea coated with S or treated with nitrification inhibitors AM or neem cake and applied at various dates (484-679 kg). 3 hand-weedings were more effective against weeds and gave higher yields (1.07 t/ha) than the application of 1 l dalapon/ha at sowing followed by a spray of 0.5 l MCPB/ha + 3% urea at the 3- to 4-leaf stage.

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Accession: 000734605

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