Effects of Different Drugs on Agronomic Characters of Qianyu 1(a Potato Variety) after Frost Damage

The leaves of Qianyu 1(a potato variety) after frost damage were spayed by different drugs to select the drugsof lightening frost damage and increasing potato yield.The results showed that spraying methyl-thiophanate and potassium dihydrogen phosphate could significantly increase yield of Qianyu 1 after frost damage,which indicates that spraying methyl-thiophanate and potassium dihydrogen phosphate is the suitable remedial measure to reduce yield lost after frost damage in potato production.