正交试验法是一种安排和分析试验的方法。下面通过一个例子介绍一些与试验有关的名词。指标、因素和水平某生产队为了提高棉花的产量和质量,从外地引进四个新品种,现在需要通过试验比较这四个品种的优劣,同时摸清它们的栽培技术。 Orthogonal test method is a way to arrange and analyze the experiment. Below by an example to introduce some of the terms related to the test. Indicators, Factors and Levels In order to increase the yield and quality of cotton, a production team introduced four new varieties from the field and now need to compare the pros and cons of these four varieties through experiments and find out their cultivation techniques.