Department Of Environmental Science And Technology
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Item Management of food and vegetable processing waste spiked with buffalo waste using earthworms (Eisenia fetida)(Springer Verlag, 2017) Sharma, K.; Garg, V.K.The present investigation was focused on the vermicomposting of food and vegetable processing waste (VW) mixed with buffalo dung (BW) under laboratory condition employing Eisenia fetida earthworm species. Four different proportions of VW and BW were prepared and subjected to vermicomposting after 3?weeks of pre-composting. After vermicomposting, nitrogen (7.82?20.73?g/kg), total available phosphate (4.80?11.74?g/kg) and total potassium (7.43?12.75?g/kg) content increased significantly as compared to initial feed stocks. Significant reduction was observed in pH (7.56 to 6.55), total organic carbon (48.25?23.54%) and organic matter (83.18?40.68%). Metal content (Fe, Cu, Zn and Ni) was higher in all the vermicomposts than feedstocks. Data on growth and reproduction of earthworm revealed that the highest biomass gain and fecundity of worms were attained in 100% BW followed by [BW75%?+?VW25%]?>?[BW50%?+?VW50%]?>?[BW25%?+?VW75%] feedstocks. Results evidenced the suitability of VW (up to 50%) spiked with BW for increasing earthworm population and in providing potent organic manure for agricultural applications. ? 2017, Springer-Verlag Berlin Heidelberg.Item Estimation of Mineral and Trace Element Profile in Bubaline Milk Affected with Subclinical Mastitis(Humana Press Inc., 2017) Singh, M.; Yadav, P.; Sharma, A.; Garg, V.K.; Mittal, D.The milk samples from buffaloes of Murrah breed at mid lactation stage, reared at an organised dairy farm, were screened for subclinical mastitis based on bacteriological examination and somatic cell count following International Dairy Federation criteria. Milk samples from subclinical mastitis infected and healthy buffaloes were analysed to evaluate physicochemical alterations in terms of protein, fat, pH, electrical conductivity, chloride, minerals (sodium, potassium and calcium) and trace elements (iron, zinc, copper and selenium). In the present study, protein, fat, zinc, iron, calcium and selenium content was significantly lower (P?Item A comparative analysis of composts and vermicomposts derived from municipal solid waste for the growth and yield of green bean (Phaseolus vulgaris)(Springer Verlag, 2017) Soobhany, N.; Mohee, R.; Garg, V.K.This work was conducted to evaluate and compare the responses of Phaseolus vulgaris to three types of composts and vermicomposts derived from municipal solid waste (MSW). Different amendment rates were used and evaluated for their effect on germination, growth, and marketable yield. MSW-derived vermicomposts and composts were substituted into mineral brown-earth soil, applied at rates of 0 (control), 10, 20, 30, 40, 50, and 100% (v/v) in plastic pots of 7.2-L capacity. Green beans which are grown in 40% vermicompost/soil mixtures and compost/soil mixtures yielded 78.3?89.5% higher fruit weights as compared to control. Results showed that MSW vermicomposts consistently outperformed equivalent quantities of composts in terms of fruit yield, shoot, and root dry weights, which can be attributed to the contributions of physicochemical properties and nutrients content (N, P, and K) in the potting experiments. Consequently, it seemed likely that MSW vermicompost provided other biological inputs such as plant growth regulators (PGRs) and plant growth hormones (PGHs), which could have a considerably positive effect on the growth and yields of P. vulgaris as compared to composts. More in-depth scientific investigation is required in order to identify the distinctive effects and the exact mechanisms of these PGRs in MSW vermicomposts which influenced plant growth responses. ? 2017, Springer-Verlag Berlin Heidelberg.