Effects of Soil Physical properties on Growth in Wasabia japonica Matsum

摘要: This study was conducted to find out the optimum ranges of soil physical properties for wasabi growth by relationship and plant growth. Soil bulk density hardness were higher in decomposition granite river sand than hydroball. root distribution surface layer Growth characteristics yield hydroball sand. In inlet site, marketable rhizome weight decompasition granite, sand, 298kg/10a, 401kg/10a, 766kg/10a, respectively. But outlet, three soils 251kg/10a, 256kg/10a, 633kg/10a,