Effect of Decomposed Rice Straw at Different times on Rice Yield

Inoculant of Trichoderma fungi was used to treat into rice straw at different times for decomposition to study “Effect of decomposed rice straw at different times on rice yields”. The decomposed rice straw at 1, 2, 3, 4 weeks gave C/N ratio from 24.12 31.71 in dry season and from 16.64 31.12 in wet season, these C/ N ratio was lower as compared to rice straw, which was not treated by inoculant of Trichoderma fungi (C/ N: 42.43 and 45.70 in dry and wet seasons, respectively); The decomposed rice straw at different times gave pH value of soil solution from 4.60 6.74 in dry season and from 6.38 6.83 in wet season and these pH value was not toxic to rice plant growth. The decomposed rice straw at different times in combination with 50% NPK fertilizer increased yield over control from 26.98% 37.04% in dry season and from 33.45% 48.08% in wet season and these above treatments were also found to be higher in microbial population; ETS activities and total protein in soil as compared to alone application of NPK fertilizers.