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首页> 外文期刊>African Journal of Biotechnology >Analyses of spatial variations of kenaf in experimental field
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Analyses of spatial variations of kenaf in experimental field

机译：洋麻在实验场中的空间变化分析

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Preliminary investigations of experimental field usually involve collection of soil samples at widely spaced locations which are patchily or globally at variant spatially. This study was carried out to evaluate spatial variations in experimental fields using a split plot experiment distributed in a completely randomized design at Ikenne and Ilora between June and September 2006 (test crop was kenaf). The preliminary descriptive statistics suggested the dependency of the stem girth and height on the spatial positions. The variance - covariance analyses matrices of the plots showed that stem girth and plant height were independently distributed and exhibited a non stationarity principle. The results also revealed that spatial autocorrelation exists in patches in the experimental fields while the entire plots showed random distributions because the autocorrelatons were neither dominated by negative nor positive correlation and more than 50% of these values falls within the range of ± 2/√n. From this study, a regionalized spatial variation is imminent in 625 m2?experimental plot despite the difference in the treatments. Spatial variations study was found necessary in any plot not more than an acre (250 m2) of land otherwise such variations should be treated as block or environmental effect(s).
机译：对实验场的初步调查通常涉及在宽间隔的位置收集土壤样本，这些位置在空间上呈局部或整体分布。这项研究的进行是使用2006年6月至9月之间在Ikenne和Ilora进行的完全随机设计的分块试验来评估实验田的空间变化（试验作物为洋麻）。初步的描述统计表明，茎围和身高与空间位置有关。地块的方差-协方差分析矩阵表明，茎周长和株高是独立分布的，并且表现出非平稳性原理。结果还表明，实验场中的斑块中存在空间自相关，而整个图显示出随机分布，这是因为自相关既不由负相关也不由正相关主导，并且这些值的50％以上在±2 /√n范围内。 。根据这项研究，尽管处理方法有所不同，但在625平方米的实验区中即将出现区域性空间变化。发现任何面积不超过一英亩（250平方米）的土地都必须进行空间变化研究，否则应将这种变化视为块状或环境影响。

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