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Effect of mulches and antitranspirants on the grain yield of sorghum grown under limited irrigations on a deep vertisol

Published online by Cambridge University Press:  27 March 2009

R. De ,
G. Bheemiah ,
K. Ramsheshiah  and
Y. Yogeswara Rao
R. De
Affiliation:
Andhra Pradesh Agricultural University, Rajendranagar, Hyderabad 500 030, India
G. Bheemiah
Affiliation:
Andhra Pradesh Agricultural University, Rajendranagar, Hyderabad 500 030, India
K. Ramsheshiah
Affiliation:
Andhra Pradesh Agricultural University, Rajendranagar, Hyderabad 500 030, India
Y. Yogeswara Rao
Affiliation:
Andhra Pradesh Agricultural University, Rajendranagar, Hyderabad 500 030, India
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Summary

Field experiments made for 2 years on a deep vertisol under semi-arid conditions showed that soil-surface evaporation control by mulching with rice straw or transpiration suppression by foliar application of kaolin or atrazine increased the yield of grain sorghum. These materials decreased soil moisture depletion and thus increased water-use efficiency. Application of one irrigation at the boot-leaf stage was beneficial. No additional advantage was noted with two irrigations, one given 45 days after seeding and the other at anthesis.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 100 , Issue 1 , February 1983 , pp. 159 - 162
Copyright
Copyright © Cambridge University Press 1983

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References

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