摘要
为探索沼液对白菜主要病虫害的控制效应及产量的影响,采用田间对比试验,结果表明:沼液灌根与清粪水灌根相比,能增产白菜56.58%,极显著降低白菜霜霉病、黑斑病的发生,但对小菜蛾、斜纹夜蛾和甜菜夜蛾的控制效果无显著性差异;对白菜霜霉病和黑斑病的防治效果低于清粪水灌根+喷雾丙森锌的处理。沼液灌根+喷雾对白菜黑斑病的防病及增产效果优于沼液灌根的处理,对白菜黑斑病的防效达64.29%,与清粪水灌根相比增产幅度达87.01%。
The filed comparison experiment was carried out to study effects of biogas slurry on main diseases and pests control and yield of Chinese cabbage.The results showed that yield of Chinese cabbages irrigated with biogas slurry was 56.58% higher than that irrigated with light dung,biogas slurry could significantly reduce occurrence of downy mildew and black rot diseases,there was no significant difference on control of Plutella xylostella,Prodenia litura and Laphygma exigua between biogas slurry and light dung,and the control effect of downy mildew and black rot of Chinese cabbage irrigated with biogas slurry treatment was lower than that irrigated with light dung and sprayed with propineb.The black rot control rate and yield increment range of Chinese cabbage irrigated with biogas slurry and sprayed with propineb were 64.29% and 87.01% compared with that irrigated with light dung.
出处
《贵州农业科学》
CAS
北大核心
2010年第5期119-121,共3页
Guizhou Agricultural Sciences
关键词
沼液
白菜
病虫害
控制
biogas slurry
Chinese cabbage
disease and pest injury
control
