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Effect of Crop Geometry (Row Proportions) on the Water Balance of the Root Zone of a Pigeonpea and Rice Intercropping System

Published online by Cambridge University Press:  03 October 2008

D. Jena  and
C. Misra
D. Jena
Affiliation:
Orissa University of Agriculture and Technology, Bhubaneswar, Orissa, India
C. Misra
Affiliation:
Orissa University of Agriculture and Technology, Bhubaneswar, Orissa, India
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Summary

Rice, pigeonpea and rice + pigeonpea systems (in the row proportions of 1:2 and 2:5) were compared. Soil water depletion and percolation were determined during selected dry spells and yields ascertained after harvest. The mean evapotranspiration rates of rice, pigeonpea, rice + pigeonpea (1:2) and rice + pigeonpea (2:5) were 0.28, 0.79, 0.40 and 0.35 cm d−1, respectively, during a dry spell around 60 days after sowing. In general low rainfall intensity and frequent dry spells in the growing season increased pigeonpea yield but depressed that of rice. Intercropping thus ensured yield stability and hence the profitability of the system as a whole.

Type
Research Article
Information
Experimental Agriculture , Volume 24 , Issue 3 , July 1988 , pp. 385 - 391
Copyright
Copyright © Cambridge University Press 1988

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References

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