江西农业大学学报2016，Vol.38Issue(5)：884-889,6.DOI:10.13836/j.jjau.2016125
环境因素对华南地区土壤中莠去津降解的影响
Effects of Environmental Factors on the Degradation of Atrazine in Soil in South China
摘要
Abstract
The degradation rate of atrazine was investigated by HPLC to afford scientific basis for its ra⁃tional application in vegetable fields soil of South China at different temperature,humidity and pH values. The results showed that temperature value was the most obvious impacting factor,Atrazine degraded more quickly with increasing temperature from 5 ℃~35 ℃.Its half⁃lives at (5 ±0.5)℃,(15±0.5)℃,(25±0.5)℃ and (35±0.5)℃ were 187.30 d,19.97 d,14.38 d and 8.87 d.Degradation of atrazine in soil was positively related with temperature.pH had some influence on its degradation the degradation rate of atrazine was the lighest at pH=7.0 and the half⁃life was 10.95 d.The degradation rate of atrazine at pH=7.0 was followed by alkaline (pH=6.0) and acidic soil (pH=8.0) and the half⁃lives were 14.41 d and 16.82 d,respectively.Humidity had little effect on the degradation of atrazine and the half⁃lives were13.35 d,13.64 d and 20.44 d at 30%,60%, 90%.Therefore,temperature is a key factor in the degradation of atrazine,and applying atrazine in summer to control weed is recommended.关键词
莠去津/温度/pH/湿度/降解Key words
atrazine/temperature/pH/humidity/degradation分类
农业科技引用本文复制引用
苗辉,冯莉,姚强,黄继光,周利娟..环境因素对华南地区土壤中莠去津降解的影响[J].江西农业大学学报,2016,38(5):884-889,6.基金项目
国家公益性行业（农业）科研专项（201203098） Project supported by the National Public Welfare Industry （Agriculture） Research of China （）
