Comparison of the Effect of NaOH Pretreatment and Microbial Agents on Rice Straw Decomposition

Rice straw contains a large amount of lignocellulose which is difficult to be decomposed. The objective this study was determine the effect alkaline pretreatment (sodium hydroxide, NaOH) and microbial agents on decomposition rice straw. experimental detail consisted NaOH (control solution pretreatment) agent (Bacillus licheniformis agent, Bacillus subtilis Trichoderma viride no agent) treatments. Compared with pretreatment, pH increased by 6.30–18.28%, while electrical conductivity decreased 49.18%, but change in total nutrient content not obvious. Under improved temperature decomposition. alkali-hydrolyzable nitrogen, available phosphorus, potassium 1.39–10.30%. organic carbon reduced 3.50% 17.15%. germination index greater than 80%. pile reached maximum (39.5 °C) 12th day. nitrogen phosphorus 1.64–11.87%. humus polymerization, carbon, carbon/nitrogen ratio were 6.40–44.06%. In addition, gray analysis, principal component comprehensive evaluation used comprehensively evaluate results showed that under had most obvious composting. This provides scientific basis for efficient