【摘要】 通过田间试验和室内测定研究了哒螨灵在苹果和土壤中的残留动态,应用气相色谱法测定了哒螨灵在苹果和土壤中的残留量。结果表明,哒螨灵在苹果和土壤中的半衰期分别为7.34d和8.62d。按推荐浓度50mg/L使用2次,距最后一次施药7d,哒螨灵在苹果中的残留量低于0.10mg/kg。更多还原

【Abstract】 Field experiment and residue detection were conducted to study residual dynamic of pyridaben in apple and soil.Pyridaben residues were quantified by GC.The results showed that pyridaben’s half-lives in apple and soil were 7.34 d and 8.62 d.Spraying twice with the recommended dose of 50 mg/L,the residue in apple 7 days after the final spray was less than 0.10 mg/kg.更多还原