Vol. 11, Special Issue 7 (2022)

Author(s):
P Kalaiselvi, S Mahimairaja, E Parameswari and S Paul Sebastian

Abstract:
Distillery spentwash contains all nutrients and organic matter and used in agriculture as a source of plant nutrients. Besides all the nutrients, spentwash contains appreciable amount of nitrogen (N) also. The effect of different levels of spentwash application on soil nitrogen dynamics was examined through a laboratory closed incubation experiment. Application of different levels of spentwash had significant influence on soil N. Both the NH₄-N and NO₃-N fractions markedly increased with increase in the levels of spentwash (140 m³). The spentwash not only adds mineral N (NH₄-N and NO₃-N) to soil, but also promotes the mineralization of soil organic N.