TY - JOUR
TI - Effect of the addition of various exogenous substances on the physico-chemical properties of the aerobic composting of livestock manure
AU - Gao Peng
AU - Xin Xin
AU - Zhang Ting
AU - Xue Peng
AU - Jia Pei-Qi
AU - Li Yan-Li
AU - Chen Lin-Xiao
AU - He Xiao-Song
AU - Cui Li-Peng
AU - Mei Ying
JN - Thermal Science
PY - 2025
VL - 29
IS - 3
SP - 2061
EP - 2068
PT - Article
AB - The utilization of aerobic composting to produce organic fertilizer  represents a significant method of resource utilization of livestock and  poultry manure. In this study, two substances were selected for analysis.  The study included two substances: tillage soil and corn bracts and  corncobs. Each substance was co-composted with livestock manure at a ratio  of 5% and 15%, respectively. The results demonstrated that the temperature  ranking for each treatment group was as follows: corn bracts, corncobs 15%  > corn Bracts, corncobs 5% > control group > tillage soil 15% > tillage soil  5%. The maximum temperature of the treatment group with 15% corn bracts and  corncobs reached 60.2°C, which was higher than the 37.2°C of the tillage  soil group and the 46.7°C of the control group. The corn bracts and  corncobs 15% group was maintained at a temperature above 50°C for a period  of 19 days, with a final carbon-to-nitrogen ratio of 16:9. The pH  fluctuation of the corn bracts and corncobs treatment group was significant,  and the moisture content decreased relatively slowly, indicating a vigorous  microbial response and a strong water retention capacity. The difference in  electrical conductivity between the treatments was not statistically  significant, and there was no evidence of toxicity to plants at the end of  the composting process. Pearson correlation analysis revealed a strong  correlation between the difference in compost temperature and the addition  of exogenous additives.