论文部分内容阅读
本文介绍了生物测定法和重量法用于分析阿特拉津除草地膜药效的研究结果。浮萍生测法对阿特拉津浓度的分辨力较低,只可作为除草膜药效定性分析的方法;柯氏藻生测法灵敏度高,对除草膜含药量差异的分辨力较高,试验周期较短,是除草膜药效分析的较好方法;田间除草效果试验一般用来验证其它方法的可靠性,其试验周期长,只能用于评价少量样本的除草效果;重量法操作简便.可作为分析工艺条件对除草剂在膜面的分布状况影响的简便方法。
This paper presents the results of the bioassay and gravimetric methods used to analyze the efficacy of atrazine herbicidal film. The low sensitivity of duckweed test to the concentration of atrazine can only be used as the method of qualitative analysis of the herbicidal membrane. The sensitivity of the koji algae test is high, and the resolution of the herbicidal membrane containing drug is high , The shorter the test period is a better method of herbicidal efficacy analysis. The field herbicidal effect test is generally used to verify the reliability of other methods. The test period is long and can only be used to evaluate the weeding effect of a small amount of samples. The gravimetric method Easy. It can be used as a simple and convenient method to analyze the distribution of herbicide on the membrane surface.