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四川省内江市新能源技术推广站于1988年就进行了这项小区对比试验。试验点设21个小区,每小区0.2亩,随机排列,重复三次。沼液选自两口正常发酵2个月以上的沼气池,提取发酵池中新溢出的沼液,滤后待用。共采用喷雾纯沼液、沼液与乐果以2500:1和2000:1比例混合的两种剂量、标定的1000:1氧化乐果三种方法。结果表明,两种剂量的乐果沼液混合液防治效果最稳定,乐果单独使用防治效果次之,纯施沼液效果不稳定。 1990年当地进行沼液防治蚜
Neijiang City, Sichuan Province, new energy technology promotion station in 1988 on the plot of comparative experiments. The experimental point set 21 plots, 0.2 acres of each plot, randomly arranged, repeated three times. The biogas slurry is selected from two biogas digesters that are normally fermented for more than two months, and the biogas slurry spilled from the fermentor is freshly filtered to be used. A total of three methods of sprayed pure biogas slurry, biogas slurry and dimethoate at a ratio of 2500: 1 and 2000: 1 were mixed and calibrated with 1000: 1 omethoate. The results showed that the two doses of dimethoate mixture liquid control effect is the most stable, the second effect of dimethoate alone control, the effect of pure biogas slurry instability. 1990 local biogas slurry control aphids