Abstract:

Abstract: In order to make up a standard procedure for safe use of tebuconazole in soil and peanut, a field supervised experiment was conducted to reved dynamics of tebuconazole in soil and peanut were determined by GLC method. The results of two years study showed that tebuconazole disappeared rapidly in both soil and peanut. Its half-lives in soil and peanut were 10.31~11.44days and 3.86~4.12 days, respectively. The peanut was sprayed two and three times with tebuconazole of 25% WP at dilution of 1：2000 （125.7ai?hm-2）），and the pre-harvest interval were 25 and 45 days, the final residues of the rinsulfure in peanut and soil were ?0.01 mg?kg-1and0.025mg?kg-1~0.113mg?kg-1,respectively.Therefore, it maybe conduced that tebuconazole is a non-persistent pesticide.