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间作就是在同一土地上同时种植二种或二种以上作物,间作与单作的主要差别在于前者测定二种或二种以上作物产量,后者只测定一种作物产量。当需将间作进行比较时,那就并不是所有试验小区均可植二种作物,因此其资料结构就更加复杂,若采用通常运用的单变量分析方法来分析这些资料,试验的真实效应就难以揭示出来,有时还可能得出自相矛盾的结果,这就要考虑使用其他的分析方法。
Intercropping is the simultaneous cultivation of two or more crops on the same land. The main difference between intercropping and monoculture is that the former measures the yield of two or more crops, while the latter measures only one crop. When intercropping is required, not all experimental plots can be planted with two kinds of crops. Therefore, the data structure is more complicated. If the commonly used univariate analysis is used to analyze these data, the real effect of the experiment will be difficult Revealed, sometimes contradictory results may be obtained, which should consider the use of other analytical methods.