微生物菌剂与堆肥增效剂协同提升温室番茄秸秆发酵效率研究OA

[Objective]To address the technical challenges of high lignification degree of greenhouse tomato straw,slow fermentation degradation,and high nitrogen loss rate,explore the synergistic mechanism of microbial agents and compost enhancers and enhance the fermentation efficiency of tomato straw.[Method]Using greenhouse tomato straw as the experimental material,four groups of experiments were set up:control(CK),single microbial agent,single compost enhancer,and combined treatment of microbial agent and compost enhancer.The temperature dynamics,dry matter degradation,NH3/CO2 release,and maturity and stability indicators of the compost during the 77-day fermentation process were monitored using a static insulation reactor.[Result]Compared with the single treatments and the control,the combined treatment showed a significant synergistic effect.The peak temperature of the compost was close to 70℃,and the high-temperature(>50℃)maintenance time reached 21 to 42 days.The daily cumulative rate of effective accumulated temperature(net cumulative degree • hour)was significantly higher than that of other treatments.At the end of the fermentation,the dry matter degradation rate reached 59.3%,which was 35.4%higher than that of the control;the cumulative release of NH3 was only 2.1%of the total nitrogen,which was 36.4%lower than that of the control,and the cumulative release of CO2 reached 21.1%of the total carbon;the compost entered a stable state after 35 days,reached the maturity safety threshold on the 42nd day,and the decomposition speed and quality were the best.[Conclusion]Microbial agents and compost enhancers can achieve synergistic effects through functional complementarity.The microbial agent enhances the degradation ability of straw,and the enhancer optimizes the microenvironment of the compost.The combination of the two can significantly improve the fermentation efficiency of tomato straw,reduce nutrient loss,and accelerate the decomposition process,aiming to provide theoretical basis and technical reference for the harmless,fertilizerization,and low-carbon treatment of greenhouse tomato straw.