Chen Xianglei, Cheng Zhikui, Su Liwen, Huang Xialei, Deng Yan, Bai Wenhui, Chen Zhihao, Chen Baoshan, Wang Peng, Pang Hongguang, Liu Zhengguo
College of Agriculture, Guangxi University, Nanning 530004, China.
Department of Agriculture and Food Science, Shijiazhuang University, Shijiazhuang 050035, China.
Microorganisms. 2025 Jul 20;13(7):1703. doi: 10.3390/microorganisms13071703.
Intercropping has been widely proven to boost agricultural yields and control diseases. This study examined the impact of sugarcane monoculture (SM) and sugarcane-pumpkin intercropping (IP) systems on soil physicochemical characteristics and microbial community dynamics. Compared to monoculture, intercropping significantly increased soil pH by 8.82% and total potassium (TK) by 17.92%, while reducing soil organic matter (SOM) by 25.56%. Bacterial communities under intercropping exhibited significantly higher alpha and beta diversity, whereas fungal community diversity remained unaffected. Notably, the relative abundances of certain taxa with known roles in plant growth promotion and pathogen suppression-such as , , and -were enriched. Canonical correlation analysis revealed that bacterial community composition was strongly associated with TK, while fungal community structure correlated with variations in soil available nitrogen (AN). These findings indicate that sugarcane-pumpkin intercropping reshapes soil microbial communities and contributes to some improvement in soil nutrient availability.
间作已被广泛证明能提高农业产量并控制病害。本研究考察了甘蔗单作（SM）和甘蔗 - 南瓜间作（IP）系统对土壤理化特性和微生物群落动态的影响。与单作相比，间作使土壤pH显著提高了8.82%，全钾（TK）提高了17.92%，同时土壤有机质（SOM）降低了25.56%。间作条件下的细菌群落表现出显著更高的α和β多样性，而真菌群落多样性未受影响。值得注意的是，某些在促进植物生长和抑制病原体方面具有已知作用的分类群的相对丰度——如 、 和 ——有所增加。典范相关分析表明，细菌群落组成与全钾密切相关，而真菌群落结构与土壤有效氮（AN）的变化相关。这些发现表明，甘蔗 - 南瓜间作重塑了土壤微生物群落，并有助于土壤养分有效性的一定改善。
