Image
Earthworm casts
Earthworm casts are digested material that earthworms excrete. Their digestion unlocks nutrients like nitrogen and phosphorus, making them more available to plants.
Rights: Ross Gray
Published:12 June 2012Size: 152.29 KBEarthworm casts are digested material that earthworms excrete. Their digestion unlocks nutrients like nitrogen and phosphorus, making them more available to plants.