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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.
