在目前的新品种联合区域试验设计中,随机区组是应用最为普遍的一种田间排列方法。随机区组有较大的弹性,容纳的品种可多可少,布局上比较灵活,对试验地的要求不太苛刻,通过局部控制的方法,可以控制单方向的地力差异,有比较准确的试验误差估计。而且这种设计方法实施比较简单,考察也比较方便,结果分析有固定的模式,因此应用十分广泛。但是这种设计方法能否达到预期的效果, In the current joint design of new varieties of regional trial, random block is the most common application of a field arrangement method. Random blocks have greater flexibility, accommodating more and less variety, layout more flexible, less demanding on the test site, through the local control method, you can control one-way differences in the ground force, a more accurate test Error estimation. And this design method is relatively simple to implement, the study is also more convenient, the result analysis has a fixed pattern, so the application is very wide. However, this design method can achieve the desired results,