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Bioconversion of Non Edible Vegetables from Market into Biofertilizer for Crop Improvement

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  • Geetha Karuppasamy
  • Michael D'Couto
  • Anant Achary

Abstract

The fruits and vegetables lost due to spoilage in the market can be converted to nutrient rich organic biofertilizer, vermicompost and worm tea. In this study, non-edible vegetables from market [French beans (S1), Lady’s fingers (S2) and Brinjal (S3)] were used for production of vermicompost and worm tea using Eisenia fetida for environmental friendly management and recycling, as value added product for crop production. Vermicomposting was carried out in four bins. Three bins (S1, S2 & S3) consisted of individual pre-digested vegetables and the fourth bin (S4) was set up with a mixture of all three pre-digested vegetables in equal proportions. Physico-chemical properties and essential nutrients like pH, temperature, moisture content, total organic carbon (C), total nitrogen (N), available phosphorus (P) and exchangeable potassium (K) of the pre-digested vegetables and/or compost were analysed at regular time intervals. There was around 6-10 fold increase in earthworm count at the end of vermicomposting. During vermicomposting, the N and P content of the compost showed 2 to 4 fold increase whereas 10 to 15 fold increase in K content was noticed. Low C-N ratio (4 to 9) was obtained for vermicompost VS4. The worm tea (vermi wash) and vermicompost collected were used for plant growth studies on Vigna radiata (Green gram). Growth parameters like germination percentage, vigour index, germination index (GI), shoot length (cm), root length (cm) and leaf length (cm) were studied. There was noticeable improvement in germination % (1.7 fold), vigour index (2.7 fold) and germination index. A 20 fold increase in shoot length was also seen in test plants when compared to control (2 fold). Statistical analysis of various growth parameters like root length and plant height indicated that vermicompost made with waste brinjal has a significant response with p ≤ 0.05. Based on the results obtained, waste brinjal, which is abundantly available locally can be economically converted to organic biofertilizers and used for soil and crop improvement. Through this study, a cost effective and environment friendly method for efficient utilization of market waste vegetables has been proposed for promoting plant growth and development.

Suggested Citation

  • Geetha Karuppasamy & Michael D'Couto & Anant Achary, 2016. "Bioconversion of Non Edible Vegetables from Market into Biofertilizer for Crop Improvement," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 8(6), pages 1-71, May.
  • Handle: RePEc:ibn:jasjnl:v:8:y:2016:i:6:p:71
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    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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