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Effects of Zinc on Yields and Zinc Content of Rice Varieties on Calcareous Soil

Published online by Cambridge University Press:  03 October 2008

Raman Rai
Affiliation:
Rajendra Agricultural University, Dholi-Campus, Muzaffarpur-843121 Bihar, India
S. N. Singh
Affiliation:
Rajendra Agricultural University, Dholi-Campus, Muzaffarpur-843121 Bihar, India
R. B. Sinha
Affiliation:
Rajendra Agricultural University, Dholi-Campus, Muzaffarpur-843121 Bihar, India
V. Prasad
Affiliation:
Rajendra Agricultural University, Dholi-Campus, Muzaffarpur-843121 Bihar, India

Summary

Application of zinc to six high-yielding rice varieties in calcareous soils produced significantly higher grain yield and interactions between varieties and Zn levels were significant. Yields of varieties IR 20, Jaya, Sita and Jayanti at 2.5 and 5.0 ppm Zn were similarly affected, but Archana produced significantly higher grain yield at 5 ppm Zn than at 2.5 ppm. Effects of Zn on straw yield were similar. Zn application invariably resulted in a higher Zn concentration in plants at all stages of growth and in grain in all varieties. Maximum Zn contents were observed at the tillering stage and minimum at harvest.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1982

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References

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