Water-Covered Depth with the Freeze–Thaw Cycle Influences Fungal Communities on Rice Straw Decomposition

Xiaolong Lin, Zongmu Yao, Xinguang Wang, Shangqi Xu, Chunjie Tian and Lei Tian
Additional contact information
Xiaolong Lin: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agriculture, Chinese Academy of Sciences, Changchun 130102, China
Zongmu Yao: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agriculture, Chinese Academy of Sciences, Changchun 130102, China
Xinguang Wang: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agriculture, Chinese Academy of Sciences, Changchun 130102, China
Shangqi Xu: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agriculture, Chinese Academy of Sciences, Changchun 130102, China
Chunjie Tian: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agriculture, Chinese Academy of Sciences, Changchun 130102, China
Lei Tian: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agriculture, Chinese Academy of Sciences, Changchun 130102, China

Agriculture, 2021, vol. 11, issue 11, 1-16

Abstract: Rice is a staple food for the world’s population. However, the straw produced by rice cultivation is not used sufficiently. Returning rice straw to the field is an effective way to help reduce labor and protect the soil. This study focused on the effect of water-covered depth with the freeze–thaw cycle on rice straw decomposition and the soil fungal community structure in a field in Northeast China. The field and controlled experiments were designed, and the fungal ITS1 region was tested by high-throughput sequencing for analyzing the fungal communities in this study. The results showed that water coverage with the freeze–thaw cycle promoted the decomposition of rice straw and influenced the fungal community structure; by analyzing the network of the fungal communities, it was found that the potential keystone taxa were Penicillium , Talaromyces , Fusarium , and Aspergillus in straw decomposition; and the strains with high beta-glucosidase, carboxymethyl cellulase, laccase, lignin peroxidase, and manganese peroxidase could also be isolated in the treated experiment. Furthermore, plant pathogenic fungi were found to decrease in the water-covered treatment. We hope that our results can help in rice production and straw return in practice.

Keywords: rice straw; fungi; soil; water-covered; freeze-thaw (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/11/11/1113/pdf (application/pdf)
https://www.mdpi.com/2077-0472/11/11/1113/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:11:y:2021:i:11:p:1113-:d:675111

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().