The Characteristics of Tea Soils (Part 6):On the Volcanic Ash Soil of the Fuji District, Shizuoka-ken (No.1)
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概要
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The characteristics of tea soils derived from volcanic ash in Fuji district, Shizuoka-ken were researched. The profile of the sample soils was as follows.<BR>Layer No. Depth(c.m.) Characteristics<BR>I 0-20 Brownish black sandy loam, rich in humus, soft and mellow, fine granular structure.<BR>II 20-50 Dark brown sandy loam, rich in humus, slightly compact.<BR>III 50- Layer of lapillus.<BR>These soils were characterized by strongly acid reaction and extremely low base status throughout the profile. The degree of base saturation in the tea soils was less than 8 per cent and considerable amounts of free alumina and free iron were found in these soils.
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