| Answer | Crossword Clue |
|---|---|
| TOPSOIL | Upper layer of fertile earth |
| rendzinas | A fertile lime-rich soil with dark humus above a pale soft calcareous layer, typical of grassland on chalk or limestone |
| chernozems | A fertile black soil rich in humus, with a lighter lime-rich layer beneath. Such soils typically occur in temperate grasslands such as the Russian steppes and North American prairies |
| SILT | Fertile earth. |
| LOESS | Fertile earth. |
| LOAM | Fertile earth |
| MARL | Fertile earth |
