Answer:

marl

Answer	Crossword Clue
MARL	Earthy mixture
MARL	Earthy soil fertilizer
MARL	Loamy fertilizer

MARL	City in the Ruhr Valley
MARL	Fertilizer for lime-deficient soil
MARL	Acidity-correcting fertilizer
MARL	Clay-laced fertilizer
MARL	Dolomite deposit
MARL	Calcium-rich soil
MARL	Earthy deposit of clay and calcium carbonate
MARL	Fertilizer for soils deficient in lime

MARL	Crumbly clay mixture used as fertilizer
MARL	Clay-rich soil
MARL	Crumbly earth
MARL	Earthy deposit
MARL	Lime-supplying fertilizer
MARL	Loose, earthyh soil mixture
MARL	Clayey deposit
MARL	Bog lime

MARL	Clayey soil
MARL	Fertilizer mixture
MARL	Soil fertilizer
MARL	Clayey deposit.
MARL	Rich earth.
MARL	A soft, earthy deposit.
MARL	A soil.
MARL	A kind of soil.

MARL	Crumbly soil.
MARL	Clayey earth.
MARL	Crumbly earth.
MARL	Fertilizer for gardens needing lime.
MARL	Clayey soil.
MARL	Earth.
MARL	Clay.
MARL	Crumbly clay.

MARL	Special soil.
MARL	Clay deposit.
MARL	Earthy deposit.
MARL	Lime, clay and sand.
MARL	Good earth.