INFLUENCE OF VERMICOMPOST ON THE GROWTH AND YIELD OF BLACK GRAM (PHASE°/US MUNGO)Umamaheswari, S. and G.S. Vijayalakshmi
The present work aims to utilize industrial waste (paper mill sludge) for vermiculture, which give value added vermicompost to the input for the organic agriculture to save the soil from chemicals and to produce more. Based on the previous works and recommendations epigeic earthworm species Eudrilus eugeniae was selected for decomposition. Studies have beemmade to ascertain the physical and chemical characterization of the paper mill sludge + cow dung mixture before and after composting. Further, a plant growth study on black gram is also carried out. The analysis of physico chemical properties of vermicompost shows that the pH was uniformly brought to neutral level and insignificant increase of EC was recorded. The chemical analysis of the vermicompost clearly indicated that the compost was rich in N, P, K, essential nutrient for the growth of the plants. Reduction of Organic Carbon and C:N ratio during vermicomposting is the main index to assess the rate of organic matter decomposition. With regard to growth studies of black gram (Vigna mungo) was carried out employed it was observed that the morphological and yield parameters were found to increase significantly (P<0.05) over control.
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