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Undersowing Rice (Oryza sativa) with Stylosanthes guyanensis. I. Plant Density

Published online by Cambridge University Press:  03 October 2008

H. M. Shelton  and
L. R. Humphreys
H. M. Shelton
Affiliation:
Australian Development Assistance Agency, Khon Kaen University, Khon Kaen, Thailand
L. R. Humphreys
Affiliation:
Department of Agriculture, University of Queensland, St. Lucia, Australia
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Summary

Upland rice and Stylosanthes guyanensis were sown simultaneously in pure and mixed culture at varying densities at Na Pheng, central Laos. Vegetative growth of the rice was negatively related to stylo density over the range o to 81 stylo plants/m.2 Rice grain yield varied from 98·4 gm./m.2 in monoculture to 63·4 gm./m.2 when grown with 81 stylo plants/m.2 Rice was more competitive than stylo, but stylo growth was relatively independent of rice density over the range 20 to 120 rice plants/m.2

Type
Research Article
Information
Experimental Agriculture , Volume 11 , Issue 2 , April 1975 , pp. 89 - 95
Copyright
Copyright © Cambridge University Press 1975

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References

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