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Effects of Depth of Submergence, Fertilization and Cultivation on Water Requirement and Yield of Rice

Published online by Cambridge University Press:  03 October 2008

H. K. Pande  and
B. N. Mittra
H. K. Pande
Affiliation:
Department of Agricultural Engineering, Indian Institute of Technology, Kharagpur, India
B. N. Mittra
Affiliation:
Department of Agricultural Engineering, Indian Institute of Technology, Kharagpur, India
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Summary

Under the three levels of submergence (0, 5 and 10 cm. depths), water requirement of rice was maximum at 10 cm. but crop performance was similar to that at 5 cm. With medium and high levels of fertilization the crop had a higher water requirement than under low level, for ‘aus’ and ‘aman’ crops. Compacted soil compared well with puddled soil, but water requirement was appreciably higher with shallow puddling. In the two seasons water requirement, transpiration, evaporation and percolation losses were greater under submergence, and only transpiration was greater under higher levels of fertilization. Transpiration was maximum at flowering stage.

Type
Research Article
Information
Experimental Agriculture , Volume 7 , Issue 3 , July 1971 , pp. 241 - 248
Copyright
Copyright © Cambridge University Press 1971

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References

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