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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(1): 859-866
DOI: https://doi.org/10.20546/ijcmas.2018.701.104


Developing and Evaluating Neem Leaf Vermiwash as Organic Plant Growth Promoter
B. Jeberlin Prabina*, T. Sivasankari Devi and K. Kumutha
Department of Agricultural Microbiology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai-625 104, Tamil Nadu, India
*Corresponding author
Abstract:

The chemical, biochemical and biological parameters of organic extracts differ from substrates being used for preparation and this work aimed at selecting a suitable substrate for active decomposition of organic wastes with Eisenea sp. and for extraction of vermiwash that could sustain the soil capacities both chemically and biologically. Different substrates namely Prosopis, Albizia, Azadirachta, Azolla, Leucaena, Eichornia and Banana pseudostem were used for preparation of vermicompost along with cowdung (10:1w/w basis). From the active compost, vermiwash was collected @ 40 litres of vermiwash from one complete cycle and different parameters were assessed. Among the different substrates tested, neem leaf vermiwash proved to be a better source of nitrogen fixing, phosphate solubilising, cellulolytic and starch degrading microorganisms. Nitrogen fixing Azospirillum sp. registered 200x104 CFU ml-1 followed by Azotobacter sp. 61x104CFU ml-1. Phosphorus solubilizing bacteria numbered to 4x102 CFU ml-1 and that of fluorescent Pseudomonads was 37x104 CFU ml-1. The cellulose and starch degraders outnumbered the other microbes each with a count of 325 x104 CFU ml-1. The nutrient composition of the neem leaf vermiwash was 53.30 ppm of nitrogen, 12ppm of phosphorus and 223 ppm of potassium. The micronutrients zinc, iron, copper and manganese were present at 0.06, 1.08, 0.04 and 0.01 ppm levels. The presence of the plant hormones viz., Indole Acetic Acid (1.25ppm) and Gibberellic acid (1.65 ppm) added value to the vermiwash. With these diversified biochemical and microbial components, it is concluded that neem leaf vermiwash could be able to sustain the production capacities of soil and that could be developed as an organic supplement for plant growth promotion.


Keywords: Neem leaf vermiwash, Microbial count, Growth promoters
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How to cite this article:

Jeberlin Prabina, B., T. Sivasankari Devi and Kumutha, K. 2018. Developing and Evaluating Neem Leaf Vermiwash as Organic Plant Growth Promoter.Int.J.Curr.Microbiol.App.Sci. 7(1): 859-866. doi: https://doi.org/10.20546/ijcmas.2018.701.104