摘要
在河北、浙江两地同时进行了锐劲特在水稻上的残留动态试验。结果表明,锐劲特在稻田水和植株中的半衰期为3—4d,在土壤中的半衰期为15d,施用为建议剂量1倍量的25%锐劲特悬浮剂拌种,收获后糙米、稻壳中锐劲特原体及4种代谢物残留量均未超过最高残留限量。
Supervised residue experiments for fipronil in rice fields were conducted in Zhejiang and Hebei Province, respectively. The results showed that fipronil was dissipated rapidly in water and plant, but slowly in soil. Its half-lives in water, plant and soil were approximately 3—4days, 3—4days, 15days, respectively. The insecticide was applied as seed coating according to the recommended dosage and twice recommended dosage. The final residues of the parent and the metabolites in shells and seeds did not exceed maximum residue limit established USA at harvest time. Therefore, it may be concluded that 25% fipronil SC, used in seeds, is safe for human-being and animals when the treatment is less than 3.2 g·kg-1 seeds.
出处
《农业环境保护》
CSCD
北大核心
2001年第5期360-362,365,共4页
Agro-Environmental Protection
