基于根际健康和精准用药的烟草根结线虫病绿色防控技术研究——以四川省会理市黎溪镇横坝塘村为例  

Research on Green Control Technology of Tobacco Root Knot Nematode Disease Based on Rhizosphere Health and Precise Chemical Application——Take Lixi Township of Huili County as an Example

作　　者：江连强 赖婷 王金峰 JIANG Lianqiang;LAI Ting;WANG Jinfeng(Liangshan Prefecture Branch of Sichuan Tobacco Company,Xichang Sichuan 615000,China;Chongqing Xinong Plant Protection Technology Development Co.LTD.,Chongqing 400700,China;School of Plant Protection,Southwest University,Chongqing 400715,China)

机构地区：[1]中国烟草总公司四川省公司凉山州公司,四川西昌615000 [2]重庆西农植物保护科技开发有限公司,重庆400700 [3]西南大学植物保护学院,重庆400715

出　　处：《植物医学》2023年第1期95-102,共8页Plant Health and Medicine

基　　金：凉山烟草线虫病害的监测预警及绿色防控技术研究与应用(川烟科[2020]2号)。

摘　　要：四川省凉山彝族自治州会理市是我国“清甜香”优质烟叶主要生产区之一.近年来,由于气候环境变化、烟草连作等因素导致烟草根结线虫病大面积暴发,对烟叶高质量生产造成了严重威胁.本研究以烟草根际健康调控为核心,集成牡蛎硅粉土壤调酸控病及精准用药等多项技术,建立了一套以烟株根际健康调控为核心的烟草根结线虫绿色防控技术体系,并于2022年在黎溪镇开展田间示范研究.研究结果表明,该技术体系对根结线虫病具有较好的防治效果,防效达81.12%;同时,技术应用显著提高了土壤全磷、速效钾、交换性钙、镁的含量,提升了土壤pH值及脲酶、过氧化氢酶和蔗糖酶的活性,降低了土壤交换性酸的含量,对于优化土壤结构,持续控制根结线虫病的发生具有重要的价值和意义.Huili County of Liangshan Prefecture of Sichuan Province is one of the main production areas of ‘sweet and sweet’ quality tobacco leaves. In recent years, due to climate change, tobacco continuous cropping and other factors, caused outbreak of tobacco root knot nematodes in large areas, posing a serious threat to the high-quality production of tobacco leaves. This study focused on regulation of tobacco rhizosphere health and integrated several technologies, such as oyster silica soil acid adjustment and disease control, and precise chemical application, to establish a tobacco rhizosphere health control basedtobacco root-node nematode green control technology system. The field demonstration and application were carried out in Lixi Town in 2022. The demonstration results showed that the scheme had a good control effect on root knot nematodes, and the control efficiency was up to 81.12%. At the same time, this scheme significantly increased the contents of total phosphorus, available potassium, exchangeable calcium and magnesium in soil, also increased the pH value of soil and the activities of urease, catalase and sucrase, and reduced the content of exchangeable acid in soil, which has important value and significance for optimizing soil structure and continuously controlling the occurrence of root knot nematodes.

关 键 词：根结线虫病 综合防控 绿色防控 

分 类 号：S432.4[农业科学—植物病理学]