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ORIGINAL RESEARCH article

Front. Microbiol.
Sec. Microbe and Virus Interactions with Plants
Volume 15 - 2024 | doi: 10.3389/fmicb.2024.1453054

Drip irrigation affects soil bacteria primarily through available nitrogen and soil fungi mainly via available nutrients

Provisionally accepted
Xiaojuan Wang Xiaojuan Wang 1,2*Yu Zhang Yu Zhang 1Tianle Wang Tianle Wang 1Lei Wang Lei Wang 1
  • 1 Shanxi Agricultural University, Jinzhong, Shanxi Province, China
  • 2 Shanxi Institute of Organic Dryland Farming, Shanxi Agricultural University, Taiyuan, China

The final, formatted version of the article will be published soon.

    The issue of water scarcity is a matter of global concern. Water-saving irrigation has long been a subject that has intrigued researchers in the field of agriculture. The changes in soil microbial community structure and diversity under different periods of drip irrigation were studied using the Illumina HiSeq high-throughput sequencing platform and 16S rRNA gene sequence amplification sequencing. According to the different drip irrigation amounts, 6 treatments were set. These treatments included maintaining the drip irrigation amount at 320mm without any increase (CK), increasing by 72mm from the sowing stage to the jointing stage (J), from the jointing stage to the big trumpet stage (B), from the big trumpet stage to the tasseling stage (T), from the tasseling stage to the grain filling stage (G), and from the grain filling stage to the maturity stage (M). Compared with CK, T treatment significantly increased the Chao index of soil bacteria by 2.95%. Proteobacteria, Acidobacteria, blastomonas, Actinobacteria, Chloromycetes, and Bacteroidetes were the main bacterial phyla, and ascomycetes, basidiomycetes, chytridomycetes and mortieromycetes were the main fungal phyla under different periods of drip irrigation. Zoopagales, Amtridomyces, and Trichomyces were not found in G, T, and M treatments, respectively. The content of soil available potassium in the T treatment was higher than that in other treatments, whereas the content of soil available nutrients in the B treatment was the lowest. The content of comprehensive available nutrients in T treatment was more prominent. The redundancy analysis showed that available nitrogen was the main soil chemical properties affecting soil bacterial community structure, and soil available nutrient was the main soil chemical properties affecting soil fungal community structure. Thus, T treatment had a good effect on improving soil microbial community structure and increasing soil available nutrients.

    Keywords: Maize, Soil nutrient, Soil microorganism, drip irrigation, Correlation and redundancy analysis

    Received: 22 Jun 2024; Accepted: 30 Oct 2024.

    Copyright: © 2024 Wang, Zhang, Wang and Wang. 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: Xiaojuan Wang, Shanxi Agricultural University, Jinzhong, Shanxi Province, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.