Single factor randomized block design was used in order to study chemical control effect of two new kinds of high efficiency herbicides Sumisoya and Harness on weeds in potatoes fields.
试验采用单因素随机区组设计，旨在研究禾耐斯与速收两种新型、高效除草剂对马铃薯田杂草的化学防除效果。
The data with missing values in two-factor experiment with randomized block design is the unbalanced data with unequal replications of level combination of two factors.
有缺失数据两因素随机区组试验资料是两因素水平组合重复数不等的非平衡资料。
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