A study on composting swine manure and rice bran found that after 56 days, the compost maturity increased, as shown by a decrease in T-value and NH+4-N/NO-3-N ratio, and an increase in GI. The maturity indices chosen were GI≥45%, T≤0.65, and NH+4-N/NO-3-N ratio≤0.60. In a pot experiment with sweet peppers, using 30 or 55-day fermentation compost resulted in significantly higher biomass compared to 0, 7, or 14-day treatments. There was no significant difference between the biomass of peppers grown in 30 or 55-day fermentation compost.