不同除草剂对枣幼苗生长指标及土壤细菌群落结构的影响

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中图分类号：S665.1 文献标志码：A 文章编号：1002-2910（2026）02-0017-08

（1.塔里木大学园艺与林学学院，新疆阿拉尔843300；2.新疆维吾尔自治区农业科学院果蔬研究所，新疆乌鲁木齐830091;3.麦盖提县红枣产业研究院，新疆喀什 844000;4.山东省果树研究所，山东泰安 ）

Effects of different herbicides on growth indexes of jujube seedlings and soil bacterial community structure

JIANG Tianxiang1，2，3， WANG Shoule34， YUAN Ye2.3， WANG Xueli1：2，3， HAO Qing2，3， WU Cuiyun1*

（1.College ofHrticultureand Forestry，Tarim University，Alaer，Xinjiang 8433o0，China;2.InstituteofFruts and Vegetables，Xinjiang Academy ofAgricultural Sciences， Urimqi，Xinjiang 83oo91， China;3.Maigaiti Jujube Industrial Research Institute，Kashgar，Xinjiang 8440oo，China; 4.Shandong Institute ofPomology，Tai'an， Shandong ， China）

Abstract： To clarify the effects of pendimethalin and glyphosate on the growth of wild jujube seedlings and the rhizosphere soil bacterial community in jujube orchards， and to provide a theoretical basis for the scientific application of herbicides in jujube production， this study used pottd wild jujube seedlings as experimental materials， set up different concentrations of pendimethalin and glyphosate treatments， determined seedling growth indicators， and analyzed the structure and function of the rhizosphere bacterial community. The results showed that both herbicides significantly inhibited jujube seedling growth， with glyphosate exerting a stronger inhibitory effect，and the shoot dry weight decreased by 73.14% under high-concentration glyphosate treatment. Pendimethalin significantly reduced soil bacterial alpha diversity in a concentration-dependent manner; high-concentration pendimethalin significantly altered the bacterial community structure and induced the upregulation of functions related to bacterial cell wall/membrane biogenesis and inorganic ion transport. In contrast， glyphosate had no significant effect on bacterial diversity or community structure. In conclusion， the inhibitory effects of pendimethalin on jujubeseedlinggrowth and rhizosphere bacterial communitywere concentration-dependent， with 1.2mg/kg （soil dry weight） identified as a high-risk concentration. It is recommended to apply low-concentration pendimethalin （ 0.6mg/kg ， soil dry weight） combined with cover crop cultivation in jujube orchards.

Key words： jujube seedlings; pendimethalin; glyphosate; rhizosphere microorganisms; bacterial community

枣（Ziziphusjujuba）是中国的特色优势果树，其栽培面积约占全球总量的 98% 。（剩余11469字）