title: Dissipation kinetics, safety evaluation, and preharvest interval assessment of trichlorfon application on rice.
abstract: Nowadays, there is an urgent need for the investigation of the field dissipation and assessment of the preharvest interval for trichlorfon residues on rice. To protect consumers from potential health risks, this study can provide references for the safe application of trichlorfon in the rice fields. Results of the field dissipation study showed that the dissipation dynamic equations of trichlorfon were based on the first-order reaction dynamic equations and that the dissipation rates vary among rice plant, brown rice, rice bran, soil, and water. The 2-year field trials conducted in Yangzhou and Xiaogan suggested the interval of each application for trichlorfon on rice to be at least 7 days when 80 % trichlorfon SP was sprayed with a dose ranges between 80 and 160 a.i g/667 m(2). Additionally, the preharvest interval of the last application should be at least 15 days to ensure the amounts of residues below the maximum residue limits of trichlorfon on brown rice (0.1 mg/kg).
authors.affiliation: Joint International Research Laboratory of Agriculture & Agri-Product Safety Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China. cxj@yzu.edu.cn.|School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China. cxj@yzu.edu.cn.
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Chen
authors.affiliation: Joint International Research Laboratory of Agriculture & Agri-Product Safety Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China.|School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China.
authors.forename: Ya-jun
authors.initials: YJ
authors.lastname: Ren
authors.affiliation: Joint International Research Laboratory of Agriculture & Agri-Product Safety Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China.|School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China.
authors.forename: Zhi-yuan
authors.initials: ZY
authors.lastname: Meng
authors.affiliation: School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China.
authors.forename: Chun-liang
authors.initials: CL
authors.lastname: Lu
authors.affiliation: Joint International Research Laboratory of Agriculture & Agri-Product Safety Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China.|School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, 225009, People's Republic China.
authors.forename: Hao-tian
authors.initials: HT
authors.lastname: Gu
authors.affiliation: Zhenjiang Academy of Agricultural Sciences, Zhenjiang, Jiangsu, 212400, People's Republic China.
authors.forename: Yi-qing
authors.initials: YQ
authors.lastname: Zhuang
mesh_terms: D000383:Agriculture; D004784:Environmental Monitoring; D007306:Insecticides / Q000032:analysis*; D007700:Kinetics; D008956:Models, Chemical; D012275:Oryza / Q000737:chemistry; D010573:Pesticide Residues / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D014236:Trichlorfon / Q000032:analysis* / Q000737:chemistry
chemical_list: D007306:Insecticides; D010573:Pesticide Residues; D012987:Soil; D014236:Trichlorfon
keywords: Dissipation kinetics; Preharvest interval; Safety evaluation; Trichlorfon