通过水旱轮作和连作不同耕作制度的定位对比试验,得出因为实行水旱轮作剧烈地改变了生态环境,换种非寄主作物,使土壤中的病原物逐渐减少和消亡,轮作又可以促进土壤对病原物有拮抗作用的微生物的活动,从而抑制病原物的滋生,达到有效地杀灭土壤中所带的疫病、灰霉病等真菌,同时杀灭了百合主要害虫蛴螬幼虫,又消除了百合阔叶杂草危害。 Through the comparison of the positioning of different tillage systems in different times and different times, we can conclude that because of the drastic change of ecological environment and the change of non-host crops, the pathogens in the soil gradually diminish and disappear, and the rotation can promote soil The antagonism of pathogenic microorganisms activity, thereby inhibiting the breeding of pathogens, to effectively kill the disease brought in the soil, gray mold and other fungi, killing the lily of the main pests larvae, but also to eliminate the lily Broadleaf weeds harm.