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Static composting of cow manure and corn stalk covered with a membrane in cold regions

文献类型： 外文期刊

作者： Shi, Fengmei 1 ; Xu, Chengjiao 4 ; Liu, Jie 1 ; Sun, Fang 5 ; Yu, Hongjiu 1 ; Wang, Su 1 ; Li, Pengfei 1 ; Yu, Qiuyue 1 ; Li, Dan 1 ; Zuo, Xin 1 ; Liu, Li 5 ; Pei, Zhanjiang 1 ;

作者机构： 1.Heilongjiang Acad Black Soil Conservat & Utilizat, Harbin, Peoples R China

2.Anim Husb Minist Agr, Key Lab Combining Farming, Harbin, Peoples R China

3.Key Lab Energy Utilizat Main Crop Stalk Resources, Harbin, Peoples R China

4.Northeast Agr Univ, Coll Resources & Environm, Harbin, Peoples R China

5.Heilongjiang Acad Agr Sci, Anim Husb Inst, Harbin, Peoples R China

关键词： compost; corn stalk; cow manure; cold region; manure

期刊名称：FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY （ 影响因子：6.064； 五年影响因子：6.303 ）

ISSN： 2296-4185

年卷期： 2022 年 10 卷

页码：

收录情况： SCI

摘要： The disposal of livestock wastes is an urgent task in China. Compost is highly regarded for its ability to treat livestock wastes and protect arable land. In particular, some problems of livestock manure in cold regions, such as low efficiency because of low environmental temperature in winter, urgently need to be solved. In order to provide valuable composting information in the cold area at low environmental temperatures, the composting experiments were carried out with cow manure and corn stalk as substrates. The properties and bacterial community of compost samples in different stages were investigated. The electrical conductivity (EC), total nitrogen (TN), total phosphorus (TP), and organic matter (OM) of the final compost were 551 mu S/cm, 1.12, 0.77, and 63.5%, respectively. No E. coli or Ascaris eggs were detected. The temperature was the key factor to affect the physical-co-chemical and biological properties. The absolutely dominant genera were Sporosarcina, Virgibacillus, Flavobacterium, and Steroidobacter in heating, high temperature, cooling, and maturing stages, respectively. Also, these bacteria could act as biological indicators during the composting process. Cryobacterium, Caldicoprobacter, Virgibacillus, and Sporosarcina were relatively novel genera in the compost piles in a cold environment. The biodegradation of exogenous substances mainly occurs in the initial and maturing stages. It is proven that composting can be carried out successfully in early spring or later autumn after a harvest.

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