Band placement of urea solution : a new technique to increase urea-N efficiency in transplanted rice (Oryzasativa)
DOI:
https://doi.org/10.59797/ija.v45i2.3384Keywords:
Band placement, I5N recovery, N-use efficiency, Neem- coated urea, Urea supergranulesAbstract
Alternative strategies studied for N fertiliser 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 Nlha levels compared with the conventional split application of PU at 100 kg Nlha. 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 Nlha level respectively compared with 47.78% for NCU and 28.53% for : conventional split application as PU.References
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Schnier, H.F., De Datta, S.K., Mengel, K., Marqueses, E.P. and Faronilo, J.E. 1988. Ni- trogen use efficiency, flood water properties and nitrogen-15 balance in transplanted low- land rice as affected by liquid urea band place ment. Fertiliser Research 16 :241-255.
Schnier, H.F., Digkuhn, M, De Datta, S.K., Marqueses. E.P. and Faronilo, J.E. 1990. Nitrogen-1 5 balance in transplanted and direct
seeded flooded rice as affected by different '
methods of urea application.Biology and Fem'l-
ity of Soils 10:89-96.
