摘要
通过田间试验,研究麦田中15%三唑醇WP在小麦及土壤中的残留消解情况。结果表明,三唑醇在麦苗中消解速度较快,土壤中相对缓慢,麦苗中半衰期为3.82-6.02 d,土壤中为17.17-24.92 d;2年试验结果中,15%三唑醇WP按照900和1 800 g.hm-2,施药2次、3次,末次施药距收获间隔21 d,麦粒中三唑醇残留量低于0.2mg.kg-1,麦杆中低于5.0 mg.kg-1,该药按推荐剂量使用是安全的。
A field experiment was conducted to reveal residue and degradation of triadimenol in wheat and soil.The result showed that triadimenol degraded rapidly in the wheat seedling,but lowly in the soil relatively.The half-life of triadimenol in the former was 3.82～6.02 d and in the latter was 17.17～24.92 d.Results of the two-year experiment showed when the wheat was sprayed 2 to 3 times with triadimenol 15% WP in the dosage of 900 g·hm-2 and 1800 g·hm-2,and the last application was done 21 days before harvesting, the residue of triadimenol in the grain of harvested wheat was lower than 0. 2 mg·g^-1 and in the straw was lower than 5.0 mg-kg^-1. The tested results demonstrated that it is safe to apply triadimenol to wheat with the recommended rate.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2009年第4期666-669,共4页
Journal of Anhui Agricultural University
基金
农业部农药残留项目资助
关键词
麦田
三唑醇
残留行为
安全性评价
field of wheat
triadimenol
residue and behavior
safety evaluation
