To explore the decomposition degree of compost of garden waste under different treatments,and to provide an effective way for the rapid degradation of garden waste.The pile is treated with three treatments:CK(garden waste),T1(sheep manure+garden waste+Microbial inoculant),and T2(chicken manure+garden waste+Microbial inoculant).The temperature of the reactor was rou-tinely monitored,and samples were taken every 5 days to determine the contents of cellulose,hemicellulose,lignin,organic matter,total potassium,total phosphorus and total nitrogen.The temperature results showed that except for the control treatment,the maximum temperature was only 48.8℃,which did not reach the national high temperature period standard(55℃),other compost treatments en-tered the high-temperature fermentation stage,and the T1 temperature reached the highest value of 60.4℃ at the 10th d,and the tem-perature of T2 reached the maximum value of 59.0℃ at the 11th d.In the composting process,the C/N and organic matter contents showed a decreasing trend,and finally remained basically unchanged.The C/N ratio of the control group was only 21,which could not meet the requirements of compost decay.The C/N of Treatment 1 and Treatment 2 decreased by 48%and 46%,respectively.The de-crease in organic matter content was 45.77%and 54.05%.The contents of total nitrogen,total phosphorus and total potassium in the later stage of composting were significantly higher than those in the initial stage,and total nitrogen increased by 26.76%,28.04%and 32.17%.The growth rates of total phosphorus content were 5%,6.67%and 7.96%.The total potassium content increased by 4.08%,7.07%and 6.43%.The content of cellulose,hemicellulose and lignin gradually decreases with the increase of composting time and fi-nally stabilizes.The degradation rates of cellulose in each treatment were 22.31%,47.16%and 48.51%,respectively.The degradation rates of hemicellulose were 18.46%,22.32%and 23.88%.The degradation rates of lignin were 12.40%,41.05%and 40.08%,re-spectively.In this experiment,different composting treatments were carried out on garden waste,and it was found that the addition of livestock and poultry manure and decay fungi could greatly improve the nutrient change of the reactor and the degradation of cellulose,lignin and hemicellulose.The compost and rotten products have met the requirements of harmless and resource treatment,providing a reference for the resource utilization of garden waste.
万方数据
维普
