Abstract:

In order to increase the speed of canola meal compost, canola meal were composted under aerobic condition by ventilated mandatorily. The effects of adding two types of microbial strain were evaluated. The physical properties, pH value, water soluble NO3- and NH4+ contents C/N ratio and compost maturity were monitored throughout the composting process. The results indicated that the NH4 content and C/N ratio of the treat with the microbial strain of Rongfeng addition began to get stabile in 45-50 days, and the ones of the treat with the microbial strain of Fuganji addition decreased slightly, and the ones of CK had been decreased still. The velocity of NO3- content and pH value increases were also observed that Rofeng>Fuganji>CK. So the author concluded that adding microbial strain could speed up the composting process, and could accelerate the compost maturity. The microbial strain of Rongfeng was a better strain.