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Effects of farmyard manure and phosphorus on zinc transformations and phyto-availability in two alfisols of India by T.R. Rupa; Ch. Srinivasa Rao; A. Subba Rao; Muneshwar Singh is a Engineering article available to read on EtoBox.

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Laboratory pot experiments were run to study the effects of added zinc (Zn) with and without farmyard manure (FYM) and phosphorus (P) on Zn transformations in two Alfisols, together with Zn uptake by wheat plants grown up to 60 days. In the first experiment the treatments included four levels of Zn (0, 3.75, 7.5 and 15 mgkg(-1) soil) and two levels of FYM (0 and 10 tha(-1)), and in the second experiment five levels of P (0, 20, 40, 80 and 160 mgkg(-1) soil) and one level of Zn (7.5 mgkg(-1) soil). The soils were sequentially fractionated into water-soluble plus exchangeable (CA-Zn), inorganically bound (AAC-Zn), organically bound (PYR-Zn), oxide bound (OX-Zn) and residual (RES-Zn) forms. The effect of added FYM was more evident on the OX-Zn fraction and the percentage utilization of Zn by wheat was the greatest with the addition of FYM alone at the rate of 10 tha(-1) (1.95-2.38%) in comparison to other treatment combinations. Among the levels, application of 7.5 mg Zn kg(-1) soil showed the maximum increase in different fractions of soil Zn and significantly increased the Zn utilization by wheat (0.87-1.17%) as compared to other Zn levels (0.58-0.88%). On an average, about 85% of t

Who reads Effects of farmyard manure and phosphorus on zinc transformations and phyto-availability in two alfisols of India?

Author

T.R. Rupa; Ch. Srinivasa Rao; A. Subba Rao; Muneshwar Singh

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0960-8524)

Published

2003

Language

EN

Field

Engineering (Physical Sciences)