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Effect of Doses of Potassium, FYM and Potassium Solubilizing Bacteria on Kernel Yield, Stover Yield and Drymatter Production in Maize

Author: S. Venkata Lakshmi, M. Latha, P. Mohana Rao and K. Anny Mrudhula

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Abstract

The experiment was conducted during 2021 at Agricultural College Farm, Bapatla. The design of the experiment used 3 × 2 × 2 factorial randomized block design having 3 factors viz., three levels of K [0% RDK, 75% RDK and 100% RDK (RDK- 80 kg ha-1)], two levels of FYM (0 and 10 t ha-1) and two levels potassium solubilizing bacteria (2 kg ha-1 and 5 kg ha-1). Application of potassium @ 100% RDK (K3) gave the highest kernel yield (5588 kg ha-1), stover yield (8592 kg ha-1) and drymatter accumulation at knee-high stage (801 kg ha-1), flag-leaf stage (5413 kg ha-1) and silking stage (6902 kg ha-1) all these attributes were significantly higher over K1 (0% RDK) and K2 (75% RDK). Application of FYM @ 10 tha-1 (F2) recorded highest kernel yield (4910 kg ha-1), stover yield (7372 kg ha-1) and drymatter accumulation at knee-high stage (725 kg ha-1), flag-leaf stage (4120 kg ha-1) and silking stage (5997 kg ha-1) which was significantly higher over no FYM (F1) application. Potassium solubilizing bacteria (KSB) @ 5 kg ha-1 (KS2) recorded highest kernel yield (4782 kg ha-1), stover yield (7159 kg ha-1) and drymatter accumulation at knee-high stage (717 kg ha-1), flag-leaf stage (3925 kg ha-1) and silking stage (5865 kg ha-1) these were statistically superior over 2 kg ha-1 (KS1) KSB application.

Keywords

FYM, kernel yield, potassium, potassium solubilizing bacteria

Conclusion

From the present investigation it can be concluded that application of 100% RDK, 10 t ha-1 FYM and 5 kg ha-1 KSB increased the kernel yield, stover yield and drymatter production of maize significantly.

References

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How to cite this article

S. Venkata Lakshmi, M. Latha, P. Mohana Rao and K. Anny Mrudhula (2022). Effect of Doses of Potassium, FYM and Potassium Solubilizing Bacteria on Kernel Yield, Stover Yield and Drymatter Production in Maize. Biological Forum – An International Journal, 14(4): 405-409.