Applications of Chaetomium globosum CEF-082 improve soil health and mitigate the continuous cropping obstacles for Gossypium hirsutum

文献类型： 外文期刊

第一作者： Ma, Xiaojie

作者： Ma, Xiaojie;Zhang, Yalin;Wei, Feng;Zhao, Lihong;Zhou, Jinglong;Zhu, Heqin;Feng, Hongjie;Feng, Zili;Qi, Guangrong;Feng, Hongjie;Feng, Zili;Ma, Zheng

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关键词： Biological control; Continuous cropping obstacles; Soil-borne disease; Chaetomium globosum; Soil microecology; Soil enzyme activity

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：5.9； 五年影响因子：6.0 ）

ISSN： 0926-6690

年卷期： 2023 年 197 卷

页码：

收录情况： SCI

摘要： Serious crop diseases caused by soil microecological disturbances have been considered important causes of continuous cropping obstacles. Continuous long-term farming of cotton, an important cash crop, can lead to cotton yield and quality decline and the aggravation of soil-borne pathogens, such as Verticillium dahliae. A pot experiment was carried out in the continuous cropping cotton field soil of Xinjiang to investigate the impact of the biocontrol fungus Chaetomium globosum CEF-082 on removing the barrier to continuous cropping in cotton fields and its impact on soil microecology in cotton fields. The addition of CEF-082 increased the diversity and abundance of bacterial species, decreasing the abundance of pathogenic fungi, such as Fusarium and Verticillium, and decreasing the abundance ratio of fungi to bacteria (F/B) in soil according to high-throughput sequencing of cotton rhizosphere soil. Furthermore, the application of CEF-082 enhanced soil enzyme activity and soil pH value, controlled soil nutrient levels, and reduced the soil C/N ratio through the cotton root surrounding the soil nutrient level and enzyme activity change test. These modifications imply that the use of the biocontrol fungus CEF-082 may improve soil health, reduce the prevalence of soil-borne pathogens, restore damaged soil microecology, and have a favorable impact on easing the obstacles of continuous cotton cropping.

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