The result of the experiment revealed that the soil available nitrate decreased at the
first four weeks of the incubation and increased from weeks 5 to 7. Soil pH did not change at
the first 2 weeks of the incubation, however, raised for the rest of the incubation. At the end of
the incubation, the application of vermicompost at the rate of 12.5 g kg-1
supplemented with
100% LOF exhibited the greatest soil available nitrate. Also, the same treatment combination
had the highest soil total nitrogen (TSN) and soil pH. This finding is significantly managed for
nitrogen fertilization using vermicompost in Inceptisols.