Slow-release nitrogen fertilizer application regulated rhizosphere microbial diversity to increase maize yield

作者：Tiantian Meng, Jingjing Shi, Xiangqian Zhang, Xiaoqing Zhao, Dejian Zhang, Liyu Chen, Zhanyuan Lu, Yuchen Cheng, Yonghe Hao, Xiaoyu Zhao, Yu Wang · 发表于：Frontiers in Plant Science · 年份：2024 · DOI：10.3389/fpls.2024.1481465 · 被引用次数：20 · 研究领域：Nematode management and characterization studies、Soil Carbon and Nitrogen Dynamics、Legume Nitrogen Fixing Symbiosis

The one-time application of slow-release nitrogen fertilizer can not only reduce the labor input, but also reduce the mechanical input cost, and has the characteristics of slow release and reduce volatilization loss. This research is grounded in a localization trial initiated in 2018, which underwent comprehensive analysis utilizing high-throughput sequencing technology to elucidate the mutual feeding mechanism of slow-release nitrogen fertilizer application rate on microbial community structure, network complexity, and maize yield in different root niches (bulk soil, rhizosphere, and endosphere). Soil characteristics, microbial community composition, and collinear network of different ecological niches under slow-release nitrogen fertilizer were analyzed, and the key core species affecting the stability of the microbial network and the factors driving yield were identified. The results showed that nitrogen application increased the diversity of bacteria, and nitrogen application significantly increased the diversity of rhizosphere bacteria and fungi due to rhizosphere effects. Slow-release nitrogen fertilizer increased the complexity of the bacterial network and decreased the complexity of the fungal network, particularly, the network complexity of bacteria and fungi in the rhizosphere was higher than that in the bulk soil and the rhizosphere. The application of slow-release nitrogen fertilizer increased the abundance of Proteobacteria, Bacteroidota, Gemmatimonadota, Actinob...