设施栽培辣椒根腐病防治试验初报

A preliminary report of control trial on pepper root rot under facility cultivation

对设施栽培辣椒根腐病进行土壤消毒和药剂灌根试验,结果表明：氰胺化钙加申嗪植白金、氰胺化钙单独使用进行土壤消毒的防治效果较好,防效分别为95.64%和89.71%;药剂灌根各处理的防治效果均较差,咪鲜胺加百菌清、咪鲜胺加叶枯唑、咪鲜胺加农用链霉素及枯草芽孢杆菌加申嗪植白金灌根防治效果为47.91%~65.36%。生产上防治辣椒根腐病推荐每667 m2使用40%氰胺化钙50 kg加申嗪植白金1.2 kg或单独使用40%氰胺化钙50 kg进行土壤消毒。

In this paper,experiments of soil sterilization and root-irrigation of pesticide on pepper root rot under facility cultivation were carried out. The results showed that control efficiency on pepper root rot by combining usage of calcium cyanamide with Shenqinzhibaijin,a bio-organic fertilizer,or single usage of calcium cyanamide for soil sterilization were 95. 64%and 89. 71%,respectively. All treatments of root-irrigation of pesticide had less control efficiency. Control efficiency of prochloraz and chlorothalonil together,prochloraz and bismerthiazol together,prochloraz and agricultural streptomycintogether and bacillus subtilis and Shenqinzhibaijin used for root-irrigation were only 47. 91%- 65. 36%. In practice,it was suggested that combining usage of 50 kg 40% calcium cyanamide with 1. 2 kg Shenqinzhibaijin or single usage of 50 kg 40% alcium cyanamide per 667 m2 were suggested for soil sterilization to control hot pepper root rot.