what do earthworm castings do for soil
An earthworm produces its weight in castings daily. Worm castings are a wonderful fertilizer, rich in nutrients otherwise unavailable to plants. In cold weather, a soil search will turn up mature and young earthworms as well as eggs.By late spring, most worms are mature.n earthworm produces its weight in castings daily. Worm castings are a wonderful fertilizer, rich in nutrients otherwise unavailable to plants. In cold weather, a soil search will turn up mature and young earthworms as well as eggs.