在上一讲中介绍了复因素试验的一种一裂区试验的分析.众所周知果树生产受很多因素的制约,因此在试验中复因素试验比单因素试验更切合实际,解决问题.例如有一苹果施基肥试验,选用二个品种(祝光、红星)、二种施肥时期(10月中,2月下)、二种基肥(堆肥,坑灰)、二种方法(放射状沟,环状沟).这就有4个因素,每个因素各有2个水平,则共有2×2×2×2= In the previous lecture, we introduced the analysis of a split-zone test of complex factor test.It is well known that the production of fruit trees is restricted by many factors, so the complex factor test is more practical and solves the problem than the single factor test in the experiment, for example, there is an apple Two kinds of basal fertilizer (compost, pit ash), two kinds of methods (radial ditch and annular ditch) were selected for two kinds of fertilizing period (middle and late October) There are 4 factors, each of 2 levels each, and there are 2 × 2 × 2 × 2 =