Effects of plastic film mulching and legume rotation on soil nutrients and microbial communities in the Loess Plateau of China
文献类型： 外文期刊
作者： Shi, Mingfu 1 ; Guo, Aixia 2 ; Kang, Yichen 1 ; Yang, Xinyu 3 ; Zhang, Weina 1 ; Liu, Yuhui 4 ; Zhang, Ruyan 1 ; Wang, Yong 1 ; Qin, Shuhao 1 ;
作者机构： 1.Gansu Agr Univ, Coll Hort, Lanzhou 730070, Peoples R China
2.Northwest Inst Eco Environm & Resources, Lanzhou 730000, Peoples R China
3.Gansu Acad Agr Sci, Lanzhou 730070, Peoples R China
4.State Key Lab Aridland Crop Sci China, Lanzhou 730070, Peoples R China
关键词： Potato continuous cropping; Legume rotation; Soil properties; Soil microbial community
期刊名称：CHEMICAL AND BIOLOGICAL TECHNOLOGIES IN AGRICULTURE （ 影响因子：6.6； 五年影响因子：6.6 ）
ISSN：
年卷期： 2023 年 10 卷 1 期
页码：
收录情况： SCI
摘要： Background Potato (Solanum tuberosum L.) continuous cropping causes the decrease of tuber yield, deterioration of quality and soil degradation in the semi-arid area. These negative effects can generally be mitigated by legume rotation and mulching. However, little is known about how can mulching and legume rotation alleviate the above damage through altering soil environment. Methods A field experiment was conducted to investigate changes in soil properties and microbial community in response to legume rotation and mulching under six planting patterns: potato continuous cropping without film mulching (PC), potato continuous cropping with film mulching (PCF), potato-broad bean rotation without film mulching (R1), potato-broad bean rotation with film mulching (R1F), potato-pea rotation without film mulching (R2) and potato-pea rotation with film mulching (R2F). Results Compared with the PC, the R1F and R2F had significantly enhanced the contents of alkaline nitrogen (AN), available phosphorus (AP), available potassium (AK), total carbon (TC) and total nitrogen ( TN), but reduced soil pH and electrical conductivity (EC). The Shannon index of fungi in R1F and R2 was significantly higher than other treatments. The dominant bacterial and fungal phyla of each treatment was Proteobacteria and Ascomycota. R1, R1F, R2 and R2F enhanced the relative abundance of metabolic fungi and altered key differential microbial species. Soil EC, AN and AK were major factors influencing the soil bacterial and fungal communities. Conclusion Overall, the study demonstrated that potato-broad bean/pea rotation with mulching can be adopted as the preferred cropping systems to alleviate potato continuous cropping obstacles through enhancing soil fertility and regulating soil microbial communities in the semi-arid of Loess Plateau, China.
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