Vermicompost derived from mushroom residues improves soil C/P cycling, bacterial community, and fungal abundance

Author:

Jiang Dongqi1,Wu Chenran12,Wang Shuqiang12,Zhang Yulan1345ORCID,Chen Zhenhua1,Jiang Nan1ORCID,Zhang Ying1,Xie Hongtu13

Affiliation:

1. Shenyang Institute of Applied Ecology, Chinese Academy of Sciences Shenyang Liaoning China

2. University of Chinese Academy of Sciences Beijing China

3. Liaoning Key Laboratory of Modern Conservation Tillage and Ecological Agriculture Shenyang Liaoning China

4. Shenyang National Field Scientific Observation and Research Station of Farmland Ecosystem Shenyang Liaoning China

5. Key Laboratory of Terrestrial Ecosystem Carbon Neutrality Shenyang Liaoning China

Abstract

AbstractThe utilization of agricultural waste organic materials through composting technology has gained significant traction in agricultural production as an effective means of crop nutrient management. However, the differences in the impact of organic amendments prepared by traditional composting and vermicomposting on soil properties still deserve further research. Based on field experiments conducted in greenhouse, compared to chemical fertilizer treatments as control, we utilized traditional compost (OF) and vermicompost (VcF) derived from agricultural organic waste edible mushroom bran and cow manure (2:8). Variations in soil physiochemical properties, activities of soil enzymes related C and P cycling, abundances and diversities of bacterial 16S rRNA and fungal ITS gene at total DNA level were analyzed. Both compost treatments enhanced soil organic carbon, soil total phosphorus, and soil available P content significantly and also increased the activities of soil α‐glucosidase, β‐glucosidase, acid phosphomonoesterase, and alkaline phosphomonoesterase significantly. The above results suggested that soil C and P transformations were stimulated effectively by both organic amendments. OF and VcF increased the fungal ITS absolute abundances significantly while diversity indices of soil bacterial community increased significantly under both treatments. Correlation analysis indicated that bacterial community composition was strongly correlated with several soil property indexes while fungal community composition was only significantly correlated with soil total phosphorous content. In conclusion, similar to traditional compost, vermicompost significantly improved soil nutrient cycling (especially C and P aspects). In terms of soil microbes, bacteria and fungi showed different responding mechanism to vermicompost: bacteria adjust microbial structure, while fungi tend to proliferated. In consideration of the advantages of vermicompost in technology and economic cost, it could be applied in the subsequent agricultural production more frequently.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

Waste Management and Disposal,Agronomy and Crop Science,Renewable Energy, Sustainability and the Environment,Forestry

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