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近年来,在一些蔬菜种植区,由于大棚内连年种植同一种蔬菜,大量施用化肥,土壤有机肥缺乏,猝倒病、立枯病、根腐病、枯萎病、灰霉病、青枯病等土传病害越来越严重。对于土传病害的防治,要通过土壤处理和灌根来解决,即从源头上严防其发生。一、土传病害的种类蔬菜病虫害种类很多,根据病害的病原菌可分为侵染性病害和非侵染性病害(生理病害)。土传病害基本上属侵染性病害,但也有部分是由土壤障碍因子引起的非侵染性生理病害。土传病害主要有各种蔬菜苗期的猝倒病、立枯病,瓜、果、豆类蔬菜的枯萎病,茄子等的黄萎病,茄果类蔬菜的青枯病,黄瓜、芹菜、木耳菜的根结线虫病,大白菜等的软腐病,芦笋的茎枯病等。
In recent years, in some vegetable growing areas, large quantities of fertilizers, lack of organic manure, damping-off, blight, root rot, blight, gray mold and bacterial wilt Soil-borne diseases are getting worse. For the prevention and treatment of soil-borne diseases, to solve the problem of soil treatment and irrigation, from the source to prevent its occurrence. First, the types of soil-borne diseases There are many types of vegetables pests and diseases, according to the disease pathogens can be divided into infectious diseases and non-invasive diseases (physiological diseases). Soil-borne diseases are basically infectious diseases, but there are also some non-invasive physiological diseases caused by soil disturbance factors. Soil-borne diseases are mainly a variety of vegetable seedling damping-off disease, blight, melon, fruit, fusarium legumes, eggplant and other verticillium wilt, solanaceous vegetable bacterial wilt, cucumber, celery, Fungus root knot nematode disease, cabbage and other soft rot, asparagus stem blight and so on.