堆肥过程是一个生物过程，腐熟度与未腐熟堆肥中植物毒性物质有关，可采用生物学方法进行评价。
Because composting is a biochemical process and the compost maturity is related to phytotoxic substances in the immature compost, it can also be assessed by biological methods.
研究了添加微生物发酵菌剂对猪粪堆肥腐熟的影响。
The effect of microorganism inoculants on pig manure composting was studied.
因此必须保证堆肥产品的腐熟。
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