生物加工过程2024，Vol.22Issue(3)：309-317,9.DOI:10.3969/j.issn.1672-3678.2024.03.009
秸秆、枝条堆肥及堆肥产品中重金属在蚯蚓体内的富集行为
Accumulation of heavy metals in earthworms from compost products of straw,branch composting
摘要
Abstract
Composting has been a hot topic in the field of environment as we explore novel approaches with higher transformation efficiency and less toxicity of heavy metals in compost products.By utilizing maize straw,branches of fruit trees and pig manure as the main raw material,we studied the effects of three microorganism agents on composting,from which the best bacterium agent was chosen for medium-scale compost experiment.At the same time,we evaluated the heavy metal enrichment to earthworms in compost products.As a result,the microorganism agent 3 led to the best composting.The medium-scale compost experiment indicated that this agent could maintain the high temperature,promote the decomposition and transformation of organic matter.The contents of total nitrogen,phosphorus and potassium were significantly improved in this case,with the maximum increase of 23.42％,11.36％and 20.00％,respectively.In the earthworm bioavailability tests,the accumulation of heavy metals in earthworms was observed in all treatments,with the strongest enrichment effect(5.76-fold increase)for the treatment of pig manure-fruit tree branches.Overall,the microbial agent 3 demonstrated the potential for wide application in composting field.关键词
玉米秸秆/果树枝条/猪粪/重金属/蚯蚓Key words
maize straw/fruit tree branch/pig manure/heavy metal/earthworm分类
农业科技引用本文复制引用
李嘉欣,韩有志,刘奋武,冯鸿斌,张健,毕文龙,徐韶足,秦俊梅..秸秆、枝条堆肥及堆肥产品中重金属在蚯蚓体内的富集行为[J].生物加工过程,2024,22(3):309-317,9.基金项目
山西省农业科技成果转化和推广示范项目(K272022003) （K272022003）
山西省重点研发计划(201803D221002-2、201903D221015) （201803D221002-2、201903D221015）
山西省青年科技研究基金(201901D211355) （201901D211355）
山西省"1331工程"资助项目(20211331-15) （20211331-15）
