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

被引：17

作者：

Ma, Xiaojie ^{[1
]}

Zhang, Yalin ^{[1
]}

Wei, Feng ^{[1
]}

Zhao, Lihong ^{[1
]}

Zhou, Jinglong ^{[1
]}

Qi, Guangrong ^{[2
]}

Ma, Zheng ^{[4
]}

Zhu, Heqin ^{[1
]}

Feng, Hongjie ^{[1
,3
]}

Feng, Zili ^{[1
,3
]}

机构：

[1] Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biol, Anyang 455000, Peoples R China

[2] Anyang Acad Agr Sci, Anyang 455000, Peoples R China

[3] Chinese Acad Agr Sci, Western Agr Res Ctr, Changji 831100, Peoples R China

[4] Zhengzhou Univ, State Key Lab Cotton Biol, Zhengzhou 450001, Peoples R China

来源：

INDUSTRIAL CROPS AND PRODUCTS | 2023年 / 197卷

基金：

国家重点研发计划;

关键词：

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

D O I：

10.1016/j.indcrop.2023.116586

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

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.

引用

页数：10