From Wiktionary, the free dictionary
From 黒 (kuro) + 土 (tsuchi).
くろつち • (kurotsuchi) ←くろつち (kurotuti)?
- dark dirt, preferred in baseball fields and fairgrounds and the like
- 人工芝と黒土のグラウンド
- jinkōshiba to kurotsuchi no guraundo
- grounds of artificial turf and dark dirt