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IJSTR >> Volume 8 - Issue 11, November 2019 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



An Experimental Study To Utilize The Processed Vegetable Waste As A Soil Medium

[Full Text]

 

AUTHOR(S)

Senthilkumar. PL, kavimani. T

 

KEYWORDS

Vegetable waste, Processed Waste (PW), Sorghum bicolor, Root to Shoot ratio (R:S).

 

ABSTRACT

The openly dumped vegetable waste pollutes the soil and releases greenhouse gases which contribute to global warming. In the present study, the discarded vegetable wastes are processed and further, the experiment was carried out to utilize the Processed Waste (PW) as a soil medium for plant growth. For experimentation, five different mix proportions were attempted for assessing the growth of Sorghum bicolor or great millet a grass species largely used for cattle feed. The Processed Waste was mixed with soil (river sand) in the ratios (PW to soil), of 25:75 (P1), 50:50 (P2), 75:25 (P3), 100 (P4) percent PW and 100 (P5) percent soil. The experiment was carried out for 20 days and during experimentation pH, Temperature, Moisture content (MC), Electrical Conductivity (EC), and volume of water supplied were periodically monitored and recorded. The physical characteristics of five mix proportions (P1 to P5) provide optimum conditions for plant growth at the beginning of the experiment. However, the mediums mixed with PW possess 10 to 15 % higher Water Holding Capacity (WHC) than the sand medium. Further, it was observed that air-filled porosity in the mediums mixed with PW was 30 to 40 % higher than sand. The chemical characteristics indicate that the pH of the mix holds PW was slightly towards acidic to neutral (pH of 6.5 to 6.9) and it was acidic in soil (pH of 5.7). The EC of soil (1.3 dS/m) is less than EC (1.9 to 2.2 dS/m) of PW mixed medium this might because of the presence of higher nutrient content in the PW mixed medium. At the end of the experiment, it was inferred that the plants in pot P3 aided with 75% PW and 25% Sand show a higher growth rate than other mix combinations. The growth rate was assessed by determining the Root to Shoot ratio (R: S) and mean weight gained by the plants in the respective bins.

 

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