Solid organic fertilizer releases plant nutrient slowly, however, the residue in soil is
available for the longer period. The he effect of vermicompost residue on sweet corn growth
and selected chemical properties of soils from different organic farming practiceswas
investigated. The first factor was soil from different organic farming practices (OFP), i.e., 0, 5,
and 10 years of OFP and the second factor was rates of vermicompost, i.e., 0, 10, 20, and 30
Mg ha-1. Result revealed that at the first and second plantings, vermicompost application
considerably increased sweet corn growth and soil chemical properties, being the greatest was
at the rate of 30 Mg ha-1. Likewise, soil from 10 years of organic farming practice had higher
total organic carbon and pH than the other practices. But, those of the second planting was
shown significantly lower than those of the first planting, indicating that there was a depletion
of nutrients after the second planting. The study confirmed that regular fertilization on organic
farming practices is yet necessary to maintain the availability of plant nutrients.