为了提高田间试验的精确度和灵敏度,必须严格控制试验条件的均匀性,使各处理处于尽可能一致的条件下。这就是“试验控制”。然而,试验小区植株密度的不一致是经常遇到的问题。特别是中耕作物,缺株达到一定程度就会使试验条件造成明显的不一致,使试验数据的分析造成严重的困难。当然,由于作物的自动调节能力有时缺株对产 In order to improve the accuracy and sensitivity of field trials, the uniformity of test conditions must be strictly controlled so that the treatments are as consistent as possible. This is “test control.” However, inconsistencies in plant density in the experimental plot are a common problem. In particular, the crop cultivar, lack of strains to a certain extent will cause significant inconsistencies in the test conditions, the test data analysis caused serious difficulties. Of course, due to the crop’s ability to automatically adjust the plant-to-produce