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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 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
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.2021.10(12): 527-534
DOI: https://doi.org/10.20546/ijcmas.2021.1012.058


Effect of Biochar Amendment on Vermicomposting of Parthenium hysterophorus Biomass
R. Sabarish1.2 and M. Prakash1*
1Research Department of Microbiology, Kanchi Shri Krishna College of Arts and Science, Kanchipuram, 631 551, Tamil Nadu, India
2Department of Biotechnology, St.Joseph's College (Arts & Science), Kundrathur Main Road, Kovur, Chennai, 600128, India
*Corresponding author
Abstract:

A 15 day precomposted biomass of Parthenium hysterophorus in combination with cow dung (1:1, wt./wt.) was vermicomposted along with biochar amendment at different concentrations (0, 2, 4, 6 and 8%) using the earthworm, Eudrilus eugeniae for 50 days. The change of physicochemical parameters such as pH, electrical conductance (EC), total Kjeldahl nitrogen (TKN), total phosphorus (TP), total potassium (TK), total organic carbon (TOC), C/N ratio and C/P ratio for the initial substrates, control (final substrate maintained without earthworms) and vermicompost was analyzed. Besides, the level of total microbial population, viz., bacteria, fungi and actinomycetes were performed using the plate dilution technique. The results revealed that the treatment with 4-6% biochar enhanced the EC, total NPK and total microbial populations considerably in comparison with control substrates after 50 days. The 4% biochar amendment showed a maximum of 2.46% TKN followed by the 6% biochar amendment (2.25% TKN). The pH, TOC, C/N and C/P ratios in the vermicomposts of all the treatments were lowered from the initial levels with a maximum decline in biochar amendments. The initial C/N ratio of the substrates was ranged from 34.27 to 58.28 while the final range was found between 12.48 and 17.33. The total microbial population of bacteria, fungi and actinomycetes in the final vermicompost was intensified in all the treatments. The findings of the present study reveal that the biochar amendment (4-6%) to vermicomposting of Parthenium hysterophorus+cow dung (1:1) improves the nutrient and total microbial population.


Keywords: Biochar, Eudrilus eugeniae, Microbial population, Weed, Vermicompost
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How to cite this article:

Sabarish, R. and Prakash, M. 2021. Effect of Biochar Amendment on Vermicomposting of Parthenium hysterophorus Biomass.Int.J.Curr.Microbiol.App.Sci. 10(12): 527-534. doi: https://doi.org/10.20546/ijcmas.2021.1012.058