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ORIGINAL RESEARCH article
Front. Microbiol.
Sec. Microbe and Virus Interactions with Plants
Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1528575
Impact of nitrogen fertilization on soil microbial diversity, its mediated enzyme activities, and stem nematode population in sweet potato fields
Provisionally accepted
Fengyu Shi 1 Xinpeng Meng 1 Jiaxin Li 1 Dan Yang 1
Jianbin Liu 2
Xingzhong Liu 3
Meichun Xiang 4
Yingbo Zhu 1*- 1 Hebei Normal University of Science and Technology, Qinhuangdao, China
- 2 Beijing Academy of Agricultural and Forestry Sciences, Beijing, Beijing Municipality, China
- 3 Nankai University, Tianjin, China
- 4 Chinese Academy of Sciences (CAS), Beijing, Beijing, China
Excessive nitrogen fertilization in sweet potato cultivation poses significant ecological and economic challenges in China, negatively impacting soil health by altering microbial community diversity, enzyme activities, and increasing the risk of stem nematode damage. In this study, we conducted a field trial in Northeast China, applying 0-72 kg of urea-N per hectare to brown soil under a five-year sweet potato cropping system. The results demonstrated that optimal nitrogen fertilization (64.8 kg ha -1 ) significantly promoted beneficial microbial populations, enhanced soil urease activity, and reduced the incidence of stem nematode disease while maintaining high sweet potato yields.
Keywords: Ditylenchus destructor, Illumina Miseq sequencing, Biolog, pest management, phosphatase
Received: 15 Nov 2024; Accepted: 01 Apr 2025.
Copyright: © 2025 Shi, Meng, Li, Yang, Liu, Liu, Xiang and Zhu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Yingbo Zhu, Hebei Normal University of Science and Technology, Qinhuangdao, China
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