Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-23T06:50:36.557Z Has data issue: false hasContentIssue false
  • English
  • Français

Relative efficiency of prilled urea, urea supergranules (USG) and USG coated with neem cake or DCD for direct-seeded rice

Published online by Cambridge University Press:  27 March 2009

K. Sudhakara  and
R. Prasad
K. Sudhakara
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi-110012, India
R. Prasad
Affiliation:
Division of Agronomy, Indian Agricultural Research Institute, New Delhi-110012, India
Get access Rights & Permissions [Opens in a new window]

Summary

A field experiment was made during the rainy season of 1982 and 1983 at the Indian Agricultural Research Institute, New Delhi to study the relative efficiency of prilled urea, urea supergranules (USG) and USG coated with neem cake and DCD. Prilledurea was applied at 60, 120 and 180 kg N/ha, while the other sources of N were applied only at 120 kg N/ha. Nitrogen was added to rice in a single application 20 days after sowing (20 DAS) or in two applications, half 20 DAS and the rest at panicle initiation. Response of rice to prilled urea was linear up to 180 kg N/ha, the highest dose in the present study. Two applications produced more rough rice and straw and resulted in higher nitrogen uptake and apparent recovery than a singleapplication. Neem-cakecoated USG was superior to prilled urea in respect of panicle characters, rough rice and straw yield, nitrogen uptake and apparent nitrogen recovery. Coating USG with DCD also showed some advantage. Uncoated USG was only slightly better than prilled urea.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 106 , Issue 1 , February 1986 , pp. 185 - 190
Copyright
Copyright © Cambridge University Press 1986

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

REFERENCES

Ahmed, I. U. & Abdul Faiz, S. M. (1969). A study of the effect of different levels of nitrogen and water on growth, yield and quality of IR-8–288–3 rice. Pakistan Journal of Soil Science 5, 1–15.Google Scholar
Amberoee, A. & Vilsmeier, K. (1979). Breakdown of dicyandiamide in quartz sand and soils. Zeitschrift für Pflanzenernährung und Bodenkunde 146, 778–785.Google Scholar
Bathkal, B. G. & Patil, D. H. (1970). Effect of interrow spacing and nitrogen levels on yield of drilled paddy. Indian Journal of Agronomy 15, 228–292.Google Scholar
Kuo, K. E. (1972). Response of rice to a late application of nitrogen as affected by physiological stage and nitrogen status of the plants. Journal of Agricultural Association, China 78, 26.Google Scholar
Matsuzaki, A., Matsushima, S., Tomita, T. & Katsoki, E. (1972). Analysis of yield determining process and its application to yield prediction and culture improvement of lowland rice. IX. Effects of nitrogen top-dressing and full heading stage on lodging resistance, root activity, yield and kernel quality. Proceedings, Crop Science Society Japan 41, 139–146.CrossRefGoogle Scholar
Pillai, K. G. (1981). Agronomic practices to improve the N-use efficiency. Fertilizer News 26 (2), 3–9.Google Scholar
Peakasa Rao, E. V. S. & Prasad, R. (1980). Nitrogen leaching losses from conventional and new nitrogenous fertilizers in lowland rice culture. Plant and Soil 57, 383–392.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. (1982). The use of nitrification inhibitors and slow-release nitrogen fertilizers for manipulation of the growth and yield of rice. In Chemical Manipulation of Growth and Development (ed. McLaren, J. S.), pp. 451–464. London: Butterworth Scientific.CrossRefGoogle Scholar
Prasad, R. & De Datta, S. K. (1979). Increasing fertilizer nitrogen efficiency in wetland rice. In Nitrogen and Rice, pp. 465–484. Los Bafios, Philippines: International Rice Research Institute.Google Scholar
Prasad, R. & Rajale, G. B. (1972). The influence of nitrification inhibitors and slow-release nitrogen materials on transformation of fertilizer nitrogen in soils of fluctuating moisture content. Soil Biology and Biochemistry 4, 451–457.CrossRefGoogle Scholar
Prasad, R., Rajale, G. B. & Lakhdive, B. A. (1970). Effect of time and method of application of urea and its treatment with nitrification inhibitors on the yield and nitrogen uptake by irrigated upland rice. Indian Journal of Agricultural Sciences 40, 1118–1127.Google Scholar
Pbasad, R., Singh, S. & De, R. (1984). Effect of time and method of application on the relative efficiency of prilled urea and urea supergranules for rice. Journal of Agricultural Science, Cambridge 103, 539–542.Google Scholar
Rajale, G. B. & Prasad, R. (1973). Nitrification inhibitors and slow release nitrogen fertilizers for rice (Oryza saliva L.). Journal of Agricultural Science, Cambridge 83, 303–307.CrossRefGoogle Scholar
Reddy, K. R. & Patrick, W. H. Jr (1980). Losses of applied ammonium 16N, urea 15N and organic 16N in flooded soils. Soil Science 130, 326–330.CrossRefGoogle Scholar
Reddy, R. N. S. & Prasad, R. (1975). Studies on the mineralization of urea, coated urea and nitrification inhibitors treated urea in soil. Journal of Soil Science 26, 304–312.CrossRefGoogle Scholar
Reddy, R. N. S. & Prasad, R. (1977). Effect of variety rates and sources of nitrogen on growth characters, yield components and yield of rice. 11 Riso 26, 217–224.Google Scholar
Riedeb, G. & Michaud, H. (1981). Some aspects of costs versus efficiency in the use of nitrification inhibitor Didin. Paper presented at the British Sulphur Corporation Fourth International Conference on Fertilizer Technology, London.Google Scholar
Savant, N. K., Cbaswell, E. T. & Diamond, R. B. (1983). Use of urea supergranules for wetland rice: a review. Fertilizer News 28 (8), 27–35.Google Scholar
Sharma, S. N. & Prasad, R. (1980). Carry over effects of rates and sources of nitrogen applied to rice on the succeeding spring wheat crop. Zeitachrift fur Ackerund Pflanzenbau 149, 345–354.Google Scholar
Singh, R. A., Rafey, A. & Rao, M. S. S. (1982). Effect of split application of nitrogen on the performance of upland rice. Indian Journal of Agronomy 27, 199.Google Scholar
Singh, S. & Prasad, R. (1985). Studies on the nitrification inhibitor, dicyandiamide (DCD) for increasing the efficiency of nitrogen applied to rice. Journal of Agricultural Science, Cambridge 104, 425–428.CrossRefGoogle Scholar
Thomas, J. (1981). Studies on the nitrogen management of direct seeded rice. Ph.D. thesis, Indian Agricultural Research Institute, New Delhi.Google Scholar
Thomas, J. & Prasad, R. (1983). Mineralization of urea, coated urea and nitrification inhibitor treated urea in different rice growing soils. Zeitachrift fur Pflanzenerndhrung und Bodenkunde 146, 341–347.CrossRefGoogle Scholar
Vacharotayan, S. & Takai, Y. (1983). Paddy Nitrogen Economy, pp. 1–199. Nodai Research Institute, Tokyo University of Agriculture, Tokyo, Japan.Google Scholar