多菌灵在稻田水、土壤及稻米中的残留研究

摘要

采用田间试验方法，研究了多菌灵在水稻上的消解动态及最终残留。结果表明：多菌灵在田水和土壤中的消解动态均符合一级动力学方程，原始沉积量与施药剂量、施药次数密切相关，其半衰期分别为3．07-3．25d和6．12-6．25d。按推荐剂量231g／hm。最多施药3次，在收获的稻米中多菌灵的残留量低于中国、食品法规委员会（CAC）及日本的MRL标准。%The decomposition dynamic and eventually residue of carbendazim was researched. The results showed that the digestion dynamic of carbendazim conform to the level 1 dynamic equation. The half-life is 3.07-3.25 days in paddy water and 6.12-6.25 days in soil. When applied 3 times at the dosage of 231g/hm2, the final residues of carbendazim in rice were lower than the MRL of China, CAC and Japanese standard.