Details
| Original language | English |
|---|---|
| Article number | 60 |
| Journal | Agronomy |
| Volume | 11 |
| Issue number | 1 |
| Publication status | Published - Jan 2021 |
| Externally published | Yes |
Abstract
Soil microorganisms are the core force driving the conversion of plant residues into soil organic carbon (SOC). Identifying the changes in soil microorganism responses to tillage practices is a key step in understanding the SOC sequestration potential. The aim of this study is to assess the impacts of different tillage practices on microbial communities and functions in agricultural soils. A field experiment involving no tillage (NT), rotary tillage (RT), and deep tillage (DT) in winter wheat-summer maize double cropping was performed to determine the structure of the microbial community and its functions using metagenomics. We found that tillage practices changed the composition of soil microbial communities and their functions related to the C cycle. The relative abundance of fungi in DT was significantly higher than that of the NT and RT treatments and primarily facilitated the growth of the fungi community. Moreover, DT treatment increased the relative abundance of genes involved in carbohydrate transport and metabolism genes and carbohydrate metabolism pathway genes, in addition to those encoding carbohydrate-binding modules. Therefore, we concluded that DT increases the transformation potential of straw-C to SOC in the North China Plain where large amounts of wheat and maize straw are returned to the field every year.
Keywords
- CAZy, KEGG, Metagenomics, Microbial community, Tillage
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Agronomy, Vol. 11, No. 1, 60, 01.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Tillage practice impacts on the carbon sequestration potential of topsoil microbial communities in an agricultural field
AU - Dai, Hongcui
AU - Zhang, Hui
AU - Li, Zongxin
AU - Liu, Kaichang
AU - Zamanian, Kazem
N1 - Funding information: This research was financially supported by the Natural Science Foundation of Shandong Province (ZR2020QC110), National Key R&D Program of China (2018YFD0300606), Research Fund for International Young Scientists of National Natural Science Foundation of China to K.Z. (Grant number: 42050410320). Acknowledgments: The funding for study abroad program by the government of Shandong Province for the financial support of H.D.
PY - 2021/1
Y1 - 2021/1
N2 - Soil microorganisms are the core force driving the conversion of plant residues into soil organic carbon (SOC). Identifying the changes in soil microorganism responses to tillage practices is a key step in understanding the SOC sequestration potential. The aim of this study is to assess the impacts of different tillage practices on microbial communities and functions in agricultural soils. A field experiment involving no tillage (NT), rotary tillage (RT), and deep tillage (DT) in winter wheat-summer maize double cropping was performed to determine the structure of the microbial community and its functions using metagenomics. We found that tillage practices changed the composition of soil microbial communities and their functions related to the C cycle. The relative abundance of fungi in DT was significantly higher than that of the NT and RT treatments and primarily facilitated the growth of the fungi community. Moreover, DT treatment increased the relative abundance of genes involved in carbohydrate transport and metabolism genes and carbohydrate metabolism pathway genes, in addition to those encoding carbohydrate-binding modules. Therefore, we concluded that DT increases the transformation potential of straw-C to SOC in the North China Plain where large amounts of wheat and maize straw are returned to the field every year.
AB - Soil microorganisms are the core force driving the conversion of plant residues into soil organic carbon (SOC). Identifying the changes in soil microorganism responses to tillage practices is a key step in understanding the SOC sequestration potential. The aim of this study is to assess the impacts of different tillage practices on microbial communities and functions in agricultural soils. A field experiment involving no tillage (NT), rotary tillage (RT), and deep tillage (DT) in winter wheat-summer maize double cropping was performed to determine the structure of the microbial community and its functions using metagenomics. We found that tillage practices changed the composition of soil microbial communities and their functions related to the C cycle. The relative abundance of fungi in DT was significantly higher than that of the NT and RT treatments and primarily facilitated the growth of the fungi community. Moreover, DT treatment increased the relative abundance of genes involved in carbohydrate transport and metabolism genes and carbohydrate metabolism pathway genes, in addition to those encoding carbohydrate-binding modules. Therefore, we concluded that DT increases the transformation potential of straw-C to SOC in the North China Plain where large amounts of wheat and maize straw are returned to the field every year.
KW - CAZy
KW - KEGG
KW - Metagenomics
KW - Microbial community
KW - Tillage
UR - http://www.scopus.com/inward/record.url?scp=85109042627&partnerID=8YFLogxK
U2 - 10.3390/agronomy11010060
DO - 10.3390/agronomy11010060
M3 - Article
AN - SCOPUS:85109042627
VL - 11
JO - Agronomy
JF - Agronomy
SN - 2073-4395
IS - 1
M1 - 60
ER -