A COMPARATIVE STUDY ON THE EFFECT OF DESICCATED COCONUT WATER AND DAIRY WHEY ON BENEFICIAL MICROFLORA, GROWTH AND YIELD OF SOYBEAN [Glycine max (L.) Merr.]
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Date
2022-05-04
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University of Agricultural Sciences, Bangalore
Abstract
The focus of this research was to see how desiccated coconut water and dairy whey from desiccated coconut industries and milk dairy, respectively, impacted beneficial microorganisms and soybean yield. The uncontrolled disposal agro-industrial wastewaters result in environmental problems like global warming, acidification, oxygen depletion, eutrophication, odour, etc. Standard assays were used to identify the microorganisms, minerals, and growth hormones contained in desiccated coconut water and dairy whey. The effects of samples on the population and survivability of phyllosphere, rhizospheric beneficial microorganisms, and soybean growth response were evaluated in two sets under glasshouse conditions, each with different concentrations of desiccated coconut water and
dairy whey. On the Pot-I set, samples were foliar sprayed, while on the Pot-II set, samples were applied to the soil. In both sets of pot trials at varied intervals, the treatment of 10 per cent desiccated coconut water yielded better results. It's also statistically equivalent to a 10 per cent dairy whey treatment. The phyllosphere and rhizosphere microorganisms, as well as several plant growth and yield indices, were significantly greater in 10 per cent desiccated coconut water. The optimal treatment, as determined in the pot experiment, was next evaluated in the field on soybean growth and yield. At 90 days after sowing, there was a higher population of beneficial rhizosphere microflora such as Azotobacter sp (17.30 x
105 cfu g-1 of soil), Rhizobium sp (15.32 x 105 cfu g-1 of soil), phosphate solubilizing bacteria (9.04 x 105 cfu g-1 of soil), and Pseudomonas sp (15.60 x 105 cfu g-1 of soil). According to the study, desiccated coconut water and dairy whey discharged by desiccated coconut industries and milk dairy contain nutrients and plant growth-promoting substances. Desiccated coconut water and dairy whey, as a result, enhance the proliferation