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Fate of fertilizer zinc in a black soil (Vertisol)

Published online by Cambridge University Press:  27 March 2009

A. K. Sarkar  and
D. L. Deb
A. K. Sarkar
Affiliation:
Rajendra Agricultural University, Bihar, Pusa (Samastipur) 848125, India
D. L. Deb
Affiliation:
Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi 110012, India
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Extract

Rice is the major food crop grown on black soils of southern India and these soils have problems of high zinc fixation due to high clay content, high pH and dominance of smectite minerals causing zinc deficiency problems. The addition of zinc fertilizers to these soils has often been ineffective as the element is transformed to unavailable forms particularly under flooded rice conditions. Studies on the distribution of fertilizer zinc among different pools of soil zinc (Viets, 1962) could be useful in formulating methods of zinc application for higher efficiency of utilization. An attempt was therefore made to study the transformations of added zinc in soils in field experiments conducted in a rice-rice sequence involving the use of 65Zn as a tracer.

Type
Short Notes
Information
The Journal of Agricultural Science , Volume 104 , Issue 1 , February 1985 , pp. 249 - 251
Copyright
Copyright © Cambridge University Press 1985

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References

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