[Objective] The paper was to determine the residue behavior and environmental safety of 30% kresoxim-methyl SC applied on cucumber under greenhouse conditions. [Method] Referring to Test Standard of Pesticide Residues...[Objective] The paper was to determine the residue behavior and environmental safety of 30% kresoxim-methyl SC applied on cucumber under greenhouse conditions. [Method] Referring to Test Standard of Pesticide Residues,the residue dynamics of kresoxim-methyl SC in cucumber was determined by GC.[Result]The half lives of kresoxim-methly in cucumber of Yinchuan,Changsha,Harbin were 2. 8-3. 1,2. 4-3. 7,2. 1-5. 1 d,respectively,and the final residue in cucumber after application for 3,5,7 d was less than 0. 500 0 mg / kg that was the limited standards of the state. [Conclusion]Under the proposed cultivation conditions,it is recommended to use the maximum dosage formulation of 270 g. a. i / ha( preparation 0. 09 g / m2),with spraying up to three times and the safe interval of 3- 5 d.展开更多
文摘[Objective] The paper was to determine the residue behavior and environmental safety of 30% kresoxim-methyl SC applied on cucumber under greenhouse conditions. [Method] Referring to Test Standard of Pesticide Residues,the residue dynamics of kresoxim-methyl SC in cucumber was determined by GC.[Result]The half lives of kresoxim-methly in cucumber of Yinchuan,Changsha,Harbin were 2. 8-3. 1,2. 4-3. 7,2. 1-5. 1 d,respectively,and the final residue in cucumber after application for 3,5,7 d was less than 0. 500 0 mg / kg that was the limited standards of the state. [Conclusion]Under the proposed cultivation conditions,it is recommended to use the maximum dosage formulation of 270 g. a. i / ha( preparation 0. 09 g / m2),with spraying up to three times and the safe interval of 3- 5 d.
