论文部分内容阅读
农业生产中重要的管理是病虫害的防治,因此多数时候需要将药剂对水使用,这就需要换算药剂与水的配比,但目前市场上农药标签注明使用量不够统一,造成在应用过程中掌握困难,甚至盲目使用造成药害。现介绍2种常见的浓度换算方法,供在具体使用过程中参考。首先应了解几个常见符号的含义。hm~3代表公顷,1公顷=15亩;kg代表千克,1千克=1000克=
Important management in agricultural production is the prevention and control of pests and diseases, so most of the time the need to use pharmaceuticals on water, which requires conversion of pharmaceutical and water ratio, but the current market pesticide labeling indicate that the amount used is not uniform enough, resulting in the application process Grasp the difficulties, or even use blindly cause injury. Now introduce two kinds of common concentration conversion method for reference in the specific use of the process. First of all should understand the meaning of several common symbols. hm ~ 3 for the hectare, 1 hectare = 15 acres; kg for the kilogram, 1 kilogram = 1000 grams =