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Nature of Competition between Weeds and Rice for Nitrogen Under Dry Land Conditions

Published online by Cambridge University Press:  03 October 2008

T. Chakraborty
T. Chakraborty
Affiliation:
Institute of Agriculture and Social Works, Visva-Bharati University, Sriniketan, West Bengal, India
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Summary

The nitrogen content of weeds was significantly higher than that of Dular rice-straw, but with Taichung Native I rice in winter there was no significant difference between the nitrogen in weed samples and rice plants at the tillering stage. Rice straw contained a higher proportion of nitrogen where there were three hand weedings. The total dry matter of rice was much reduced by weed competition. Weed species contained much nitrogen at the vegetative, flowering and post-flowering stages, indicating severe competition for nitrogen by weeds throughout the growth of rice under dry land conditions.

Type
Research Article
Information
Experimental Agriculture , Volume 9 , Issue 3 , July 1973 , pp. 219 - 223
Copyright
Copyright © Cambridge University Press 1973

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References

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