温室黄瓜土传病害流行因素及环境友好型防治技术对策

Epidemic Factors of Soil-Borne Diseases of Cucumber and Environment-Friendly Control Technique Under Sunlight Greenhouse in Loess Hilly Region

通过田间系统观察和小区对比试验,研究了黄土高原温室黄瓜土传病害危害性、影响流行因素和不同防治措施对土传病害及环境的效应。结果表明,黄土高原温室黄瓜主要土传病害有黄瓜根结线虫病、根腐病和猝倒病。影响流行因素主要有棚室连作年限,设施栽培黄瓜种植面积,种植模式和栽培措施。提出合理轮作,太阳能消毒,低温杀灭病菌,健身栽培等环境友好型防治技术,既可有效控制温室黄瓜土传病害的发生,又能避免对生态环境和黄瓜产品的污染,生态效益和经济效益十分显著。

Systematic surveys and plot varietals yield test under sunlight greenhouse were carried out to study on cucumber＇s soil-borne disease damages, epidemic factors and effects of different control measures as well as environment factors in loess hilly region. The results showed that cucumber＇s soil-borne diseases were mainly root-knot nematodes, root-rot, damping-off and fusarium wilt. The epidemic factors of cucumber＇ s soil-borne diseases were closely related to continuous cropping years, planting areas, planting models and cultural techniques. We have discovered that environment - friendly control techniques consisted of rational crop rotation, solarization, low temperature sterilization and using cultivation method of healthy seedling, which not only control these diseases, but also avoid of pollute eco-environment and cucumber. The economy profit and ecological benefit were remarkable.