一、研究的目的茶树田间试验,基本上都是以差异法作基础的,即改变一个因素,而其他因素却完全相同,在比较中找差别,或在差别中寻求差别的原因。而要试验得出正确的结果,首先是设法减少试验误差以获得无偏的处理平均值及试验误差的估计量。现已查明,土壤差异是田间试验中误差的主要来源,即使有些措施可以减少土壤差异,但效果并不理想。某些试验的结论认 First, the purpose of the study Tea tree field trials are basically based on the difference law, that is, change one factor, while the other factors are exactly the same, find differences in the comparison, or differences in the reasons for seeking differences. To test the correct results, the first is to try to reduce the experimental error in order to obtain an unbiased estimate of the mean and the experimental error. It has been identified that soil variability is a major source of error in field trials and that although some measures may reduce soil variability, the effect is not satisfactory. Some experiments concluded that