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Effect of form, method and time of urea nitrogen application on growth, yield and nitrogen uptake of direct sown and transplanted rice under intermediate deep water (15–50 cm) conditions

Published online by Cambridge University Press:  27 March 2009

M. M. Panda ,
B. C. Ghosh ,
M. D. Reddy  and
B. B. Reddy
M. M. Panda
Affiliation:
Agronomy Division, Central Rice Research Institute, Cuttack 753006, India
B. C. Ghosh
Affiliation:
Agronomy Division, Central Rice Research Institute, Cuttack 753006, India
M. D. Reddy
Affiliation:
Agronomy Division, Central Rice Research Institute, Cuttack 753006, India
B. B. Reddy
Affiliation:
Agronomy Division, Central Rice Research Institute, Cuttack 753006, India
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Summary

Under intermediate deepwater (15–50 cm) conditions, sulphur-coated urea (SOU) drilled behind the plough at sowing was superior to other coated (neem, lac, coaltar) urea materials and broadcast incorporation of prilled urea in increasing the yield of direct-sown rice. In transplanted rice, the grain yield was highest with urea super granules (USG) placed 30 days after transplanting (DAT) followed by SOU broadcast incorporation at planting. N-use efficiency increased considerably with SCU drilled behind the plough or USG placed 20 days after sowing in shallow standing water in direct-sown rice and SCU broadcast incorporation or USG placed 30 DAT in transplanted rice.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 110 , Issue 2 , April 1988 , pp. 309 - 313
Copyright
Copyright © Cambridge University Press 1988

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