Effect of different Sources of Organic Manures and Jeevamrutha on Yield and Microbial Population of Frenchbean (Phaseolus vulgaris L.)

Author: Nath S., Devakumar N., Rao G.G.E., Murali K., Krishna Naik L. and Kadalli G.G.

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Abstract

Due to irrational and non-judicious use of synthetic chemical fertilizers without applying organic manures in the crop production process over the years has led to deterioration of physical, chemical and biological properties of soil. To overcome these adverse impacts, a field experiment was carried out to investigate the combined effects of various sources of organic manures and jeevamrutha on yield and microbial population of Frenchbean in the research and demonstration block of the Research Institute on Organic Farming, UAS, Bangalore during Kharif - 2021. The experiment was carried out in Factorial RCBD design with 16 treatment combinations that were replicated thrice. Soil of the experimental field was red sandy loam in texture with a pH (6.93), EC (0.27 dS m-1) and medium in available nitrogen (291.5 kg ha-1), phosphorus (28.2 kg ha-1) and potassium (236.4 kg ha-1). The experimental results indicated that application of vermicompost on nitrogen (N) equivalent basis resulted in significantly higher green pod yield (150.48 q ha-1) and haulm yield (38.06 q ha-1) at harvest and microbial population in terms of bacteria, fungi, actinomycetes, N- fixers and P- soulubilizers at 40 DAS compared to other organic manure sources. Among levels of jeevamrutha, application of jeevamrutha at 2000 litre ha-1 recorded significantly higher green pod yield (139.14 q ha-1) and haulm yield (35.44 q ha-1) at harvest and microbial population in terms of bacteria, fungi, actinomycetes, N-fixers and P-soulubilizers at 40 DAS compared to other levels of jeevamrutha.

Keywords

Frenchbean, Green pod yield, Jeevamrutha, Organic manures, Vermicompost, Microbial population

Conclusion

Application of vermicompost recorded significantly higher yield of french bean as well as microbial population in soil followed by poultry manure, farm yard manure as compared to without manure treatments. Among different levels of jeevamrutha, application of jeevamrutha at 2000 l ha-1 recorded significantly higher yield of french bean as well as microbial population in soil followed by jeevamrutha at 1500 l ha-1, jeevamrutha at 1000 l ha-1 and without jeevamrutha application.

References

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How to cite this article

Nath S., Devakumar N., Rao G.G.E., Murali K., Krishnanayak L. and Kadalli G.G. (2023). Effect of Different Sources of Organic Manures and Jeevamrutha on Yield and Microbial Population of Frenchbean (Phaseolus vulgaris L.). Biological Forum – An International Journal, 15(5): 238-241.