Effect of Potassium and Zinc Solubilizing Microorganisms on Growth, Yield and quality of Groundnut (Arachis hypogaea L.) in Coastal Zone of Karnataka

Author: Ashwini Patil, G.K. Girijesh, K.V. Sudhir Kamath, B. Sarvajna Salimath and M.S. Nandish

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Abstract

A field experiment was conducted during summer season of 2021 at ZAHRS, Brahmavara, KSNUAHS, Shivamogga, to study the effect of potassium and zinc solubilizing microorganisms on growth, yield and quality of groundnut (Arachis hypogaea L.) in Coastal Zone of Karnataka. Field experiment consisted of eight treatments viz., absolute control (T1), RDF (T2), RDF with KSB and ZnSB either alone (T3 and T4) or in combination (T5), RDNP + 75 % RD of K and ZnSO4 + seed treatment with KSB +ZnSB (T6), RDNP + 50 % RD of K and ZnSO4 + seed treatment with KSB +ZnSB (T7) and RDNP + seed treatment with KSB + ZnSB (T8) are replicated thrice was laid out in RCBD. Among treatments tried, significantly higher plant height (68.35 and 67.17 cm), number of branches (9.84 and 9.5), leaf area (1186.7 and 1174.6cm2 plant 1), number of pods plant-1 (29.1 and 28.3), pod weight plant-1 (21.9 and 21.4 g), were recorded with recommended dose of fertilizer + seed treatment with KSB + ZnSB (T5) and RDNP + 75 % RD of K and ZnSO4 + seed treatment with KSB + ZnSB (T6), respectively. The better values of these indices in T5 and T6 resulted in higher pod yield (1675 and 1654 kg ha-1), kernel yield (1245 and 1224 kg ha-1), protein content (26.75 and 26.63 %) and oil content (49.30 and 48.9 %), respectively, recorded in treatments T5 and T6. Seeds treatment with both potassium and zinc solubilizing microorganisms in addition to state recommended nutrient practices for groundnut resulted in better growth, pod yield, protein content and oil content, over package of practices.

Keywords

Dry matter, KSB, Oil content, Seed treatment and ZnSB

Conclusion

From the present investigation, it can be inferred that treating seeds with both potassium and zinc solubilizing microorganisms in addition to state recommended nutrient practices for groundnut resulted in better growth, improvement to the extent of 8.41, 11.45 and 5.32 per cent in pod yield, protein content and oil content, respectively, over package of practices. Further, by seed treatment with both KSB and ZnSB, the cost on K and Zn fertilizers can be saved to the extent of 25 per cent, as treatments T5 and T6 are on par.

References

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How to cite this article

Ashwini Patil, G.K. Girijesh, K.V. Sudhir Kamath, B. Sarvajna Salimath and M.S. Nandish (2022). Effect of Potassium and Zinc Solubilizing Microorganisms on Growth, Yield and quality of Groundnut (Arachis hypogaea L.) in Coastal Zone of Karnataka. Biological Forum – An International Journal, 14(4): 484-488.