Influence of vermicomposting on solid wastes decomposition kinetics in soils |
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| Authors: | Nourbakhsh Farshid |
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| Institution: | (1) Department of Soil Science, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran |
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| Abstract: | The effect of vermicomposting on kinetic behavior of the products is not well recognized. An incubation study was conducted to investigate C mineralization kinetics of cow manure, sugarcane filter cake and their vermicomposts. Two different soils were treated with the four solid wastes at a rate of 0.5 g solid waste C per kg soil with three replications. Soils were incubated for 56 d. The CO2-C respired was monitored periodically and a first-order kinetic model was used to calculate the kinetic pa-rameters of C mineralization. Results indicated that the percentage of C mineralized during the incubation period ranged from 31.9% to 41.8% and 55.9% to 73.4% in the calcareous and acidic soils, respectively. The potentially mineralizable C (C0) of the treated soils was lower in the solid waste composts compared to their starting materials. Overall, it can be concluded that de-composable fraction of solid wastes has decreased due to vermicomposting. |
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| Keywords: | Vermicompost Manure Sugarcane filter cake Mineralization kinetics |
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