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1 萘乙酸甲酯处理法。将浓度为98%的萘乙酸甲酯150克溶解在300克丙酮或酒精中。拌入10～12.5千克细土,均匀地撒在马铃薯块茎上。马铃
1 naphthyl acetate methyl ester treatment method. 150 grams of methyl naphthalene acetate at a concentration of 98% was dissolved in 300 grams of acetone or alcohol. Stir in 10 ~ 12.5 kg fine soil, evenly sprinkled on the potato tubers. Rings