Abstract
The loquat (Eriobotrya japonica Lindl.) orchard soils in Kyushu are derived from various geological materials, namley, recent volcanic debris, basalt diorite, shale and sandstone of lower cretaceous, crystalline schist etc. A great majority of soils mix prenty of small gravel and drain well. From the results of determination on both reaction and degree of lime saturation, the authors come to the following conclusions. i. A soil with a pH of 4.9 or less and very low lime saturation is not suitable for profitable loquat culture. ii. In order that loquat may well flourish, a very feeble acid soil with a pH of 6〜7,and with a lime saturation of 50〜60 per cent. or more, is required.
