据近年来我們与农技站工作同志的接触中,以及在农村进行小麦品种生态試驗和某些新技术的示范推广过程中发現,如果田間試驗采用随机区組法或其他更复杂的設計方法,似有一定困难。在农村进行田間試驗的主要目的,在于示范推广,因此試驗設計必須便于示范,工作簡便。而随机区組法的設計不便于观察,播种、試驗处理、管理、参观評比时,手不能离开設計书,工作比較麻烦;稍一疏忽,极易造成差錯。对比法虽較粗放,但在示范推广上采用,有其一定优点。首先,观察方便,对比明显,发动群众 In recent years, we have worked with comrades working with agricultural station, as well as in rural areas to conduct ecological experiments of wheat varieties and demonstration of some new technologies to promote the process found that if field trials using randomized block method or other more complex design methods Seems to have some difficulties. The main purpose of carrying out field trials in rural areas lies in demonstration and extension. Therefore, the experimental design must be easy to demonstrate and work for. The random block method is not easy to observe the design, sowing, testing, management, visit the appraisal, the hand can not leave the design book, work is too much trouble; a little oversight, easily lead to errors. Although the comparative method is more extensive, but adopted in the demonstration and promotion, has its certain advantages. First of all, observation is convenient, obvious contrast, mobilize the masses