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农业田间试验中,除了大量的单因素试验之外,还提出了不少多因素试验问题。如何合理地挑选试验处理,使之有较好的代表性,尽量减少试验小区;如何正确分析试验数据,做到简单易行,有效地指导生产,尽量缩短试验周期等等,这些都是值得探讨和研究的问题。正交试验设计提供了用正交表挑选试验处理的一种方法。去年以来,我们结合面向农村开门办学到县、公社、大队等农业科学试验单位以及农村中学开展推广和应用正交试验设计的活动,受到贫下中农和农业技术人员的欢迎,在他们热情的帮助和指导下,将数学方法和生产实际结合起来,参加了一些实践。由于在这方面的应用仍在摸索与实践之中,许多问题还待今后在实践中不断研究与总结。作为抛砖引玉,现将其中一些单位进行的试验作简单的介绍,以便和同志们一起讨论研究。
In agricultural field trials, in addition to a large number of single-factor tests, many multi-factor test questions have also been proposed. How to select the test treatment reasonably and make it have better representation and try to reduce the pilot area; how to analyze the test data correctly, to make it easy and effective to guide the production, to shorten the test period and so on are all worth discussing And research questions. Orthogonal experimental design provides a method of selecting test treatments using orthogonal tables. Since last year, we have carried out activities of popularizing and applying orthogonal experimental design to agro-science experimental units in counties, communes and brigades, as well as to rural secondary schools, which are open to schools in rural areas. They are warmly welcomed by poor middle peasants and agricultural technicians. Under the guidance of the mathematical methods and production actually combined to participate in some practice. Since the application in this field is still being explored and practiced, many problems still need to be constantly researched and summarized in practice in the future. As a start-up, we now introduce some of the experiments carried out by some units for a brief introduction so that we can discuss them with our comrades.