Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-03T05:18:11.600Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of time and method of application on the relative efficiency of prilled urea and urea super granules for rice

Published online by Cambridge University Press:  27 March 2009

R. Prasad ,
S. Singh  and
R. De
R. Prasad
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi – 110 012, India
S. Singh
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi – 110 012, India
R. De
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi – 110 012, India
Get access Rights & Permissions [Opens in a new window]

Summary

A field experiment was made on rice during the rainy seasons of 1982 and 1983 to study the relative efficiency of prilled urea and urea super granules (USG) applied broadcast or deep placed at different times. USG gave more, longer and heavier panicles with a higher percentage of filled grains than prilled urea. Deep placement of 60 kg N/ha as USG in two applications (half 10 days after transplanting and half at panicle initiation) gave the same grain yield as 120 kg N/ha of prilled urea applied half at final puddling and half at panicle initiation. Urea super granules, therefore, hold considerable promise as a nitrogen fertilizer for rice.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 103 , Issue 3 , December 1984 , pp. 539 - 542
Copyright
Copyright © Cambridge University Press 1984

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Davies, L. H. (1976). Slow-release fertilizers, particularly sulphur coated urea. Proceedings, Fertilizer Society, London 153, 1–64.Google Scholar
De Datta, S. K., Saladaga, F. A., Obecema, W. N. & Yoshida, T. (1974). Increasing efficiency of fertilizer nitrogen in flooded tropical rice. Proceedings FAI-FAO Seminar, New Delhi, pp. 265–288.Google Scholar
Hamamoto, M. (1966). Isobutylidene diurea as a slow acting nitrogen fertilizer and the studies in this field in Japan. Proceedings, Fertilizer Society, London 90, 1–77.Google Scholar
International Rice Research Institute (1977). Research highlights for 1977. International Rice Research Institute, Los Baños, Philippines, p. 73.Google Scholar
Pillai, K. G. (1981). Agronomic practices to improve N-use efficiency of rice. Fertiliser News 26 (2), 3–9.Google Scholar
Prasad, M. & Prasad, R. (1980). Yield and nitrogen uptake by rice as affected by variety, method of planting and new nitrogen fertilizers. Fertilizer Research 1, 207–213.CrossRefGoogle Scholar
Prasad, R. (1979). Increasing fertilizer nitrogen efficiency with slow-release fertilizers and nitrification inhibitors. Fertiliser News 25 (9), 25–32.Google Scholar
Prasad, R. & De Datta, S. K. (1979). Increasing fertilizer nitrogen efficiency in wetland rice. In Nitrogen and Rice, pp. 465–484. International Rice Research Institute, Los Banos, Philippines.Google Scholar
Prasad, R., Rajale, G. B. & Lakhdive, B. A. (1971). Nitrification retarders and slow-release nitrogen fertilizers. Advances in Agronomy 23, 337–383.CrossRefGoogle Scholar
Prasad, R. & Subbiah, B. V. (1982). Nitrogen – the key plant nutrient in Indian agriculture. Fertiliser News 27 (2), 27–42.Google Scholar
Rajale, G. B. & Prasad, R. (1974). Relative efficiency of urea, nitrification inhibitor treated urea and slowrelease nitrogen fertilizers for rice. Journal of Agricultural Science, Cambridge 64, 299–303.Google Scholar
Savant, N. K., Craswell, E. T. & Diamond, R. B. (1983). Use of urea super granules for wetland rice. A review. Fertiliser News 28 (8), 27–35.Google Scholar
Shiga, H., Venture, W. B. & Yoshida, T. (1977). Effect of deep placement of ball-type fertilizers at different growth stages on yield and yield components of the rice plant in the Philippines. Plant and Soil 47, 351–361.CrossRefGoogle Scholar
Tanaka, A., Patnaik, S. & Abichandani, C. T. (1959). Studies on the nutrition of rice plant. III. Partial efficiency of nitrogen absorbed by rice plant at different stages of growth in relation to yield of rice. Proceedings, Indian Academy of Sciences, sec. B. 49, pp. 207–216.CrossRefGoogle Scholar