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Responses of Soybean to Symbiosis and Nitrogen Fertilization Under Humid Sub-Tropical Conditions

Published online by Cambridge University Press:  03 October 2008

U. R. Pal  and
M. C. Saxena
U. R. Pal
Affiliation:
G. B. Pant University of Agriculture and Technology, Pantnagar (Nainital), India, 263145
M. C. Saxena
Affiliation:
G. B. Pant University of Agriculture and Technology, Pantnagar (Nainital), India, 263145
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Summary

Responses of nodulating and non-nodulating isolines of Clark and Harosoy to applications of N were studied, to evaluate the suitability of symbiosis versus N fertilization for soybean. Nodulating lines did not respond to N when they were either effectively inoculated or raised on a field which had been under inoculated soybean in the past. On a field brought under soybean for the first time, uninoculated Clark and Harosoy needed 300 and 235 kg. N/ha. respectively to give maximum yields. Symbiosis proved better than N fertilization for the N nutrition of soybean.

Type
Research Article
Information
Experimental Agriculture , Volume 11 , Issue 3 , July 1975 , pp. 221 - 226
Copyright
Copyright © Cambridge University Press 1975

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References

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