以桃树为供试材料,研究了不同沼液稀释浓度对其缩叶病的防治效果。结果表明:喷施沼液组较对照(CK)均可不同程度降低桃树缩叶病的发生。其中以沼液稀释倍数为1/8处理的效果最好,于第3次喷施后7d,病叶率由50%降低至8%,枝条新叶平均增加5片,枝条生长了4cm,均高于其它处理;其次为沼液稀释倍数为1/4和1/16的处理,病叶率分别由45%降低至10%和52%降低至15%。 Peach trees were used as test materials to study the control effects of different concentrations of biogas slurry on their leaf-fall diseases. The results showed that the spraying of biogas slurry than the control (CK) can reduce the occurrence of peach leaf scrub in varying degrees. Among them, the dilution rate of biogas slurry was 1/8, the effect was the best. After the third spraying, the diseased leaf rate decreased from 50% to 8%, the average number of new leaves increased 5 and the branches grew 4cm Higher than other treatment; followed by the dilution of biogas slurry was 1/4 and 1/16 of the treatment, the rate of diseased leaves decreased from 45% to 10% and 52% to 15%.