两种微生物菌剂对西番莲果渣高温堆肥腐熟进程的影响

Effects of two microbial agents on high temperature composting of passion fruit marc

研究了在西番莲果渣堆肥体系中加入两种微生物菌剂(福贝和榕风)后的温度、C/N、NH4+-N和NO3--N的动态变化及对西番莲果渣堆肥产品品质的影响.结果表明,在西番莲果渣中加入微生物菌剂能增加高温分解持续时间,加快物料C/N降低的速率,促进NH4+-N向NO3--N转化,加快西番莲果渣堆肥腐熟化进程.添加福贝和榕风菌剂后,堆肥高温持续时间分别比对照(4d)增加7d和8d;腐熟后堆肥的NO3--N浓度分别比对照增加58·0%和64·2%.添加菌种显著增加了西番莲果渣堆肥的N、P、K养分含量,降低了堆肥容重,提高了堆肥总孔隙度和持水孔隙度,改善了堆肥产品的品质.两种菌剂间对西番莲果渣高温腐熟进程的影响没有显著差异,但福贝菌剂更有利于改善堆肥品质.

This paper studied the effects of microbial agents Faby （MF） and Rongfeng （MR） on the dynamic changes of temperature, C/N ratio, NH4^＋ -N and NO3^- -N contents and compost quality in the eomposting process of passion fruit mare. The results showed that both MF and MR could accelerate the composting process. Compared with the control, these two agents extended the sustaining time of high temperature from 4 days to 11 and 12 days, promoted the decrease of C/N ratio, and the NO3^- -N concentration increased by 58.0% and 64. 2% , respectively. After the amendment of MF or MR, the total N, P and K contents, total porosity and water-holding porosity in the compost increased significantly, while the bulk density decreased. No significant difference was observed in the effects of MR and MF on the high temperature eomposting process of passionflower fruit marc, but MF was more beneficial to the improvement of compost quality.