The Influence of Organic Manures on Zinc Availability in Saline Soils

Author: R. Vigneshwaran*, K. Baskar and P.P. Mahendran

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Abstract

In Agricultural Research Station, Tamil Nadu Agricultural University, Kovilpatti, an incubation experiment performed to investigate the upshot of manures on zinc availability in saline soils. In this study, ZnSO4.7H2O @ 25 kg ha-1 were incubated with FYM, vermicompost, coir-pith, and poultry manure for one month before application in a completely randomised design with ten treatments and three replications (CRD). At 15 days interval after incubation the soil samples were collected, i.e. 0, 15, 30, 45, and 60 days and examined for zinc. 1:20 ratio of ZnSO4 and vermicompost (T6) resulted in increased iron release throughout the incubation period compared to that of control. Zinc release varied from 0.60 mg kg-1 to 0.79 mg kg-1 in this treatment. Increased release of Zinc at the proportion of 1:20 ZnSO4 to vermicompost, followed by poultry manure, FYM, and coir pith application.

Keywords

Organic manures, ZnSO4, saline soil, FYM, Poultry manure, Coir pith.

Conclusion

The use of ZnSO4.7H2O in combination with vermicompost, poultry manure, FYM, and coir pith at a 1:20 ratio was found to be beneficial for zinc release in saline soil. It was unearthed that combining ZnSO4.7H2O with vermicompost, poultry manure, FYM, and coir pith improved the micronutrient status of saline soil. Micronutrients addition had doubled the volume of zinc available in the soil.

References

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How to cite this article

R. Vigneshwaran, K. Baskar and P.P. Mahendran (2022). The Influence of Organic Manures on Zinc Availability in Saline Soils. Biological Forum – An International Journal, 14(1): 477-480.