
Post Methanated Distillery effluent (PMDE) contains all nutrients and organic matter and used in agriculture as a source of plant nutrients and irrigation water. The effect of different levels of PMDE application on carbon and nitrogen dynamics was examined through a laboratory incubation experiment. Application of different levels of PMDE had significant influence on soil organic carbon and nitrogen in soil. Both the NH4-N and NO3-N fractions markedly increased with increase in the levels of PMDE up to 40m3/ha. Results showed that PMDE application not only adds mineral N (NH4-N and NO3-N) to soil, but also promotes the mineralization of soil organic N, thus resulting in large amounts of NH4-N and NO3-N in soil.