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Abstract

Formulation of potential vegetable waste compost in association with microorganisms and Spirulina platensis

Comparative study was undertaken to evaluate efficiency of the soil organisms like -Rhizobium, Azotobacter & Lactobacillus and Spirulina in different combinations along with vegetable waste to formulate it into a biofertilizer and in enhancing the growth of green gram plants. The study consists of experimental groups, control and a test control with different combinations. Group 1 contains the combination of the three bacteria along with a cyanobacterial member i.e. Spirulina and (R+A+L), the group 2 contains the R+A+L, group3 contains R+L and the group 4 contains A+L. Group5 contains a set- up as test control and a control was set-up. The Rhizobium and Azotobacter are the nitrogen fixing organisms, where as Lactobacillus produce lactic acid from sugars and other carbohydrates. Apart from this, Lactic acid is a strong sterilizing compound and suppresses harmful microorganisms and enhances decomposition of organic matter, thereby removing undesirable effects of undecomposed organic matter. The cyanobacterial member i.e. Spirulina is a rich protein as well as nitrogen provider for the plants The ratio of Vegetable waste and soil has taken in 1:3 ratio.1 ml broth cultures (109 in numbers and 25gms of Spirulina) of each organism inoculated into the vegetable waste + soil mixture. The study results reveals that group 1 has shown a greater impact on the growth of the plant in terms of germination percent growth of the plants in terms of shoot length and root length, cholorphyll and protein of the leaf was high when compared with other experimental test control and control groups. So, the vegetable waste along with efficient soil organisms is potential in promoting growth of crops.


Author(s): Kalpana. P*, Sai Bramari. G and L. Anitha

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