Band placement of urea solution : a new technique to increase urea-N efficiency in transplanted rice (Oryza sativa)

Devasenapathy, P.; Palaniappan, SP.

Band placement of urea solution : a new technique to increase urea-N efficiency in transplanted rice (Oryza sativa)

2000

Devasenapathy, P. | Palaniappan, SP. (Tamil Nadu Agricultural University, Coimbatore (India))

Alternative strategies studied for Nfertiliser management to increase the N-use efficiency in lowland rice ( Oryza sativa L.) were studied in 1993-94. The field experiment was conducted to evaluate the band placement of urea solution in comparison with the application of prilled urea (PU) and neem- coated urea (NCU) and the point placement of urea supergranules (USG). Grain yield and N-use efficiency were higher for band placement of urea solution at both 50 and 100 kg N/ha levels compared with the conventional split application of PU at 100 kg N/ha. A total 15N recovery of 58.66% and 51.65% was recorded for the treatment with band placement of urea solution at 50 and 100 kg N/ha level respectively compared with 47.78% for NCU and 28.53% for conventional split application as PU.

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