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随着南和县蔬菜产业的快速发展,设施蔬菜生产面积逐年增加,生产规模不断扩大,但近年来由于设施蔬菜栽培品种单一、多年连作、栽培管理不当等因素,出现了土壤环境恶化、病虫害加重、产量降低、品质下降等一系列问题,连作障碍已成为目前设施蔬菜生产中的一大难题,严重制约着设施蔬菜发展。一、土壤连作障碍成因1、有害微生物增加。由于多年连作,棚室土壤中的各种病原菌逐年积累,再加之设施土壤一年四季均有病原菌生长繁殖的适宜温度,使得土
With the rapid development of vegetable industry in Nanhe County, the vegetable production area of facilities has been increasing year by year and the production scale has been continuously expanded. However, in recent years, due to the factors such as single, multi-year continuous cultivation of vegetable vegetables and improper cultivation and management, the deterioration of soil environment and the increase of pests and diseases , Production decline, quality decline and a series of problems, continuous cropping obstacles has become a major vegetable production facilities, a serious problem restricting the development of facilities and vegetables. First, the causes of soil continuous cropping obstacles 1, increased harmful microorganisms. As a result of years of continuous cropping room bacteria in the accumulation of various pathogens year after year, coupled with facilities throughout the year have the appropriate pathogen growth and reproduction of soil temperature so that soil