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Minimizing Nitrate-nitrogen Leaching by Parallel Multiple Cropping in Long-duration Row Crops

Published online by Cambridge University Press:  03 October 2008

R. L. Yadav
R. L. Yadav
Affiliation:
Indian Institute of Sugarcane Research, Lucknow-2, UP, India
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Summary

The nitrate–N profile of soil was studied in sole and parallel multiple-cropping systems of pigeonpea and maize and of sugarcane and blackgram. In sole cropping there was more nitrate–N in the deeper horizons because of leaching from the inter-row spaces of row crops, whereas the nitrate content was drastically reduced in parallel cropping at more than 30 cm deep as N in the inter-row spaces was better utilized by the crops. The yield of two crops, when combined, was more in parallel cropping than the sum of crops grown separately, and the Land Equivalent Ratio was higher in parallel-cropping systems than in sole cropping.

Information

Type
Research Article
Information
Experimental Agriculture , Volume 18 , Issue 1 , January 1982 , pp. 37 - 42
Copyright
Copyright © Cambridge University Press 1982

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References

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