Kuroboku soil
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This is a classification name widely used in Japan for soils that are rich in humus and have a black, light, coarse-grained topsoil and a light brown subsoil. It is derived from a nickname that has been used by farmers throughout the country for a long time. Many of these soils have a topsoil layer of volcanic ash, and are also called black niga or black noppo, but there are also soils of non-volcanic ash origin. →Related topic Black mud Source : Heibonsha Encyclopedia About MyPedia Information |
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腐植に富み黒色で軽くてきめの荒い表層土と明るい褐色の下層土をもつ土壌に対し，日本でひろく用いられている分類名。古くから全国各地の農民の間で用いられている俗称に由来。火山灰土の表層が多く，黒ニガ，黒ノッポとも呼ばれるが，非火山灰起源のものもある。 →関連項目黒泥土 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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