Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-22T06:41:53.906Z Has data issue: false hasContentIssue false
  • English
  • Français

Coated and Uncoated Urea in Ramie Leaf Production

Published online by Cambridge University Press:  03 October 2008

Apurba Sarkar ,
Gitasree Sarkar  and
Anupam Sarkar
Apurba Sarkar
Affiliation:
Ramie Research Station, Sorbhog, India781317
Gitasree Sarkar
Affiliation:
Ramie Research Station, Sorbhog, India781317
Anupam Sarkar
Affiliation:
Ramie Research Station, Sorbhog, India781317
Get access Rights & Permissions [Opens in a new window]

Summary

Ramie (Boehmeria nivea Gaud.), which can provide fodder in addition to bast fibre, was supplied with nitrogen in three different forms: as neem cake coated urea (NCU), lac coated urea (LCU) and standard urea, at rates of 60, 120, 180, 240 and 300 kg N ha−1 annually in four equal applications. The ramie was cut four times a year for two years. NCU increased fresh weight, leaf dry matter yield and leaf protein at almost every cutting compared with the other forms of nitrogen, and there was an indication of increased residual nitrogen in the soil. Leaf dry matter and protein content increased with increasing levels of nitrogen up to 180 kg ha−1. It is suggested that coating urea with neem cake makes it a better source of nitrogen for ramie leaf production.

Type
Research Article
Information
Experimental Agriculture , Volume 20 , Issue 3 , July 1984 , pp. 245 - 249
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

REFERENCES

Bains, S. S., Prasad, R. & Bhatia, P. C. (1971). Use of indigenous materials to enhance the efficiency of fertilizer nitrogen to rice. Fertilizer News 16:30–32.Google Scholar
Berger, J. (1969). The World's Major Fibre Crops: Their Cultivation and Manuring, 226. Centre D'Etude de L'Azote 6: Zurich.Google Scholar
Engelstad, D. P. & Russel, D. A. (1975). Fertilizers for use under tropical conditions. Advances in Agronomy 27:175–208.Google Scholar
Goring, C. A. I. (1962). Control of nitrification by 2-chloro-6-(trichloromethyl pyridine). Soil Science 93:211–218.CrossRefGoogle Scholar
Jackson, M. L. (1973). Soil Chemical Analysis, 183–196. Prentice-Hall: New Delhi, India.Google Scholar
Lagen, F. B. & Rapista, E. A. (1957). Response of ramie to ammonium sulphate fertilization in the first harvest, and in the first, second and third ratoons. Philippines Agriculture 40:544–552.Google Scholar
Machin, D. H. (1977). Ramie as an animal feed, a review. Tropical Science 19:187–195.Google Scholar
Misra, K. C. & Chonker, P. K. (1978). Possible utilization of neem cake for inhibiting nitrification in soil. Journal of Indian Society of Soil Science 26:90–92.Google Scholar
Prasad, R., Rajale, G. B. & Lakhdives, B. A. (1971). Nitrification retarders and slow-release nitrogenous fertilizers. Advances in Agronomy 23:337–383.CrossRefGoogle Scholar
Reddy, R. N. S. & Prasad, R. (1975). Studies on the mineralization of urea, coated urea and nitrification inhibitor treated urea in soil. Journal of Soil Science 26:304–312.Google Scholar
Sahrawat, K. L. & Parmer, (1975). Alcohol extract of Neem (Azadirachta indica L.) seeds as nitrification inhibitor. Journal of the Indian Society of Soil Science 23:131–134.Google Scholar
Shankar, H., Ram, B. & Rathi, K. S. (1976). Effect of Neem cake blended urea on the yield and uptake of nutrients by rice grown under transplanted and direct sown condition. Journal of the Indian Society of Soil Science 24:211–213.Google Scholar
Touchton, S. T. & Hargrove, W. L. (1982). Nitrogen sources and methods of application for no-tillage corn production. Agronomy Journal 74:825–826.CrossRefGoogle Scholar