TY - JOUR

T1 - Oat/Soybean Intercropping Reshape the Soil Bacterial Community for Enhanced Nutrient Cycling

AU - Ma, Huaiying

AU - Zhou, Jie

AU - Ge, Junyong

AU - Zamanian, Kazem

AU - Wang, Xingyu

AU - Yang, Yadong

AU - Zeng, Zhaohai

AU - Zhao, Baoping

AU - Hu, Yuegao

AU - Zang, Huadong

N1 - Publisher Copyright: © 2024 John Wiley & Sons Ltd.

PY - 2024/11/12

Y1 - 2024/11/12

N2 - Intercropping, particularly within legume-based systems, has been shown to enhance yields and optimize resource use efficiency. Yet, the potential contribution of intercropping on soil microbial communities and functions to soil nutrients cycling are not fully understood. We conducted the same field experiments at Youyu (Site1) and Zhangbei (Site2) in Northern China to evaluate the impact of oat/soybean intercropping on the rhizosphere soil bacterial community structure, composition, and co-occurrence networks. Our results indicated that intercropping significantly modified the bacterial community structure for both oat and soybean at Site1, with changes observed only in the oat community at Site2. Specifically, intercropping led to a substantial increase in the relative abundance of Bacteroidetes and Patescibacteria in the oat rhizosphere by 48.3% and 65.4% (Site1), respectively. Conversely, in the soybean rhizosphere at Site1, there was a notable decrease in the abundance of Patescibacteria and Nitrospirae by 32.4% and 40.0%, respectively. The soil bacterial functional groups demonstrated robust positive correlations with key soil parameters such as available nitrogen (Nmin), available phosphorus (Avail-P), and the activities of nitrogen- and phosphorus-acquiring enzymes in the rhizosphere. In conclusion, intercropping is an effective agricultural practice for enhancing nitrogen and phosphorus cycling by reshaping the soil bacterial community, offering a distinct advantage over monoculture practices. This insight underscores the potential of intercropping to foster sustainable soil nutrient management, highlighting the importance of integrating such practices into modern agricultural strategies to ensure long-term productivity and environmental sustainability.

AB - Intercropping, particularly within legume-based systems, has been shown to enhance yields and optimize resource use efficiency. Yet, the potential contribution of intercropping on soil microbial communities and functions to soil nutrients cycling are not fully understood. We conducted the same field experiments at Youyu (Site1) and Zhangbei (Site2) in Northern China to evaluate the impact of oat/soybean intercropping on the rhizosphere soil bacterial community structure, composition, and co-occurrence networks. Our results indicated that intercropping significantly modified the bacterial community structure for both oat and soybean at Site1, with changes observed only in the oat community at Site2. Specifically, intercropping led to a substantial increase in the relative abundance of Bacteroidetes and Patescibacteria in the oat rhizosphere by 48.3% and 65.4% (Site1), respectively. Conversely, in the soybean rhizosphere at Site1, there was a notable decrease in the abundance of Patescibacteria and Nitrospirae by 32.4% and 40.0%, respectively. The soil bacterial functional groups demonstrated robust positive correlations with key soil parameters such as available nitrogen (Nmin), available phosphorus (Avail-P), and the activities of nitrogen- and phosphorus-acquiring enzymes in the rhizosphere. In conclusion, intercropping is an effective agricultural practice for enhancing nitrogen and phosphorus cycling by reshaping the soil bacterial community, offering a distinct advantage over monoculture practices. This insight underscores the potential of intercropping to foster sustainable soil nutrient management, highlighting the importance of integrating such practices into modern agricultural strategies to ensure long-term productivity and environmental sustainability.

KW - bacterial community

KW - intercropping

KW - nutrients cycling

KW - rhizosphere processes

KW - sustainable agriculture

UR - http://www.scopus.com/inward/record.url?scp=85204612106&partnerID=8YFLogxK

U2 - 10.1002/ldr.5290

DO - 10.1002/ldr.5290

M3 - Article

AN - SCOPUS:85204612106

VL - 35

SP - 5200

EP - 5209

JO - Land Degradation and Development

JF - Land Degradation and Development

SN - 1085-3278

IS - 17

ER -