基于微生态调控的蔬菜根结线虫病绿色防控技术研究

——以番茄根结线虫病为例

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Abstract：Vegetable root knot nematode disease is a soilborne disease caused by the infection of Meloidogyne incognita. It has the characteristics of many host species，wide distribution，and serious harm，which seriously threatens the sustainable development of vegetable production. This study based on the“four balances” theory of soil acid-base balance， soil microecological balance，soil nutrient balance，and pathogen and host resistance balance，to construct the green control technology system of root nematode by integrating and applying the technologies of acid regulation with oyster silicon powder， organic fertilizer application，microelement supplement， resistance inducing and precise application pesticides. The study showed that this technology system can significantly increase the soil pH value and reduce soil exchangeable acids. The content of soil organic matter， total nitrogen，total phosphorus，alkaline dissolved nitrogen，available potassium，exchangeable calcium and magnesium was increased by 0.35，0.24，0.30，0.12 0.48，0.23 and O.36-fold，respectively，compared with control treatment. It can significantly improve the enzyme activity of soil and significantly control the root knot nematode disease.The relative control effect was 82.94% . In conclusion，the green control technology system based on micro-ecological regulation can effectively prevent and control vegetable root knot nematode disease，and has good application value.

Key words： microecological regulation; vegetable root knot nematode disease; four equilibria; green prevention and control

植物根结线虫病是导致农作物减产的重要病害之一，每年造成的损失超过1500亿美元，被列为危害全球的十大植物类寄生线虫病之首[1]。（剩余7230字）