Agricultural Applications
Calcium supplementation for the home, hobby, commercial, or factory farm
Oyster shells in their most basic form are 98% calcium carbonate. Used as a calcium supplement for centuries, their nutritional value doesn’t just stop at animal feed. Added to soil, substrates, and reservoirs, crushed oyster shell is a valuable, natural additive for all agricultural venues.
Oyster shell grades suitable for agricultural use
Oyster Shell Flour
Oyster shell flour has a sand-like consistency. The fine grain is useful for more measured applications like mushroom farming or for quicker breakdown and absorption when being used for soil or water amendment.
Dried or Wet ⅜” minus
Landscape grade or ⅜” minus, often referred to as pullet grade, is the best choice for feeding and slow-release amendment. It comes in both a wet and a dried style. A ⅜” minus grade includes shells that are ⅜” in size and smaller which will include oyster dust and flour.
