中国农业大学学报2024，Vol.29Issue(12)：111-126,16.DOI:10.11841/j.issn.1007-4333.2024.12.10
不同农业废弃物对烤烟连作土壤土传病害防控的潜力研究
Study on the potential of difference agricultural wastes to the prevention and control of soil-borne diseases in flue-cured tobacco continuous cropping
摘要
Abstract
The aim of this study is to select the agricultural wastes,which are suitable for Dali Prefecture of Yunnan Province and have the effect of reducing the continuous cropping of flue-cured tobacco.Firstly,literature related to the reduction of continuous cropping obstacles of flue-cured tobacco were retrieved from the Web of Science and CNKI databases,and three categories of agricultural wastes having the effect of continuous cropping of flue-cured tobacco were identified by Meta-analysis.One type of easy-to-obtain agricultural wastes from each category was then selected,and the effects of three agricultural wastes on the soil physical and chemical properties and pathogenic bacteria of tobacco fields with different continuous cropping years(1 year and 5 years)were further explored through laboratory culture experiments.The results showed that:1)The meta-analysis revealed that the application of biochar,oil cake,livestock and poultry manure could significantly increase the yields of continuous-crop flue-cured tobacco by 15.78％,9.78％,and 7.43％,enhance the harmonization of the chemical compositions of continuous cropping flue-cured tobacco,and significantly increase the contents of organic matter by 31.61％,24.37％,and 13.41％,and available potassium in continuous-crop soils by 27.95％,26.35％,and 20.02％,respectively;2)Compared with the addition of no agricultural wastes,the addition of three kinds of agricultural wastes,namely dry cow dung(livestock and poultry manure),rapeseed cake meal(oil cake),and corn stover biochar(biochar)reduced soil pH and increased soil organic matter,total nitrogen,available nitrogen,available phosphorus,and available potassium contents in tobacco planting soils after 1 and 5 years of continuous cropping;3)At the same time,the application of three kinds of agricultural wastes changed the diversity and community structure of soil fungi,significantly reduced the relative abundance of Fusarium,the causal agent of tobacco root rot,and increased the relative abundance of Chaetomium,the preventive fungus.Therefore,the application of dry cow dung,rapeseed cake meal,and corn stover biochar could effectively improve the physicochemical properties,microbial community structure,and diversity of the soil of tobacco planting in Dali Prefecture of Yunnan Province,which was conducive to mitigating the fungal soil-borne diseases produced by continuous cropping of flue-cured tobacco and reducing the barriers to the continuous cropping of flue-cured tobacco to a certain extent.Compared with dry cow dung and corn stover biochar,the application of rapeseed cake meal had the best effect on the reduction of the continuous cropping obstacle of tobacco in Dali Prefecture,Yunnan Province.This study provided theoretical support for the selection of raw materials for the development of organic fertilizer products for the reduction of continuous cropping obstacles in flue-cured tobacco.关键词
Meta分析/农业废弃物/烤烟/连作障碍/土壤微生物/致病菌Key words
Meta-analysis/agricultural waste/flue-cured tobacco/continuous cropping obstacle/soil microorganisms/pathogenic bacteria分类
农业科技引用本文复制引用
杨冬寒,王涵,孙军伟,雷吉琳,李冬佳,杨婷,王琪,刘蕊,赵国明,李娟..不同农业废弃物对烤烟连作土壤土传病害防控的潜力研究[J].中国农业大学学报,2024,29(12):111-126,16.基金项目
中国烟草总公司云南省公司科技计划重大项目(2023530000241018) （2023530000241018）
