Effects of biogas slurry on diseases and pests control and yield of Chinese cabbage.
Wang JiaPin, Luo DongQian, Long ZuYan · Guizhou nongye kexue · 2010
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.