香蕉园土壤养分空间变异性及适宜样本容量研究  

Spatial Variability and Required Proper Sample Numbers of Soil Nutrients in Banana Orchard

作　　者：姚丽贤[1] 周修冲[1] 蔡永发[1] 陈婉珍[1] 

机构地区：[1]广东省农科院土壤肥料研究所,广东广州510640

出　　处：《土壤通报》2005年第2期169-171,共3页Chinese Journal of Soil Science

基　　金：中-加合作研究项目及广东省国际合作项目(2002C50403)资助

摘　　要：采用网格采样法采集了156个香蕉园土壤样本,用GS+对土壤养分进行半方差分析,研究养分的空间变异特征,计算土壤各养分适宜的样本容量,指出在约100hm2的研究区域内,采集54个就可以满足香蕉测土施肥的需要。samples were collected by grid sampling in banana orchard. S pa tial variability of soil nutrients was studied according to semivariance analysi s by GS^+ software, and proper sample numbers of soil nutrients were calculated . It was pointed out that 54 samples should be gathered in the 100-hectare stud ied area to meet the demand for scientific fertilization in banana by soil test.

关 键 词：土壤养分 空间变异 半方差分析 样本容量 

分 类 号：S159.2[农业科学—土壤学]