You can get Nature to do even more of the work with a Worm Tunnel, an in-ground worm farm that’s a cross between a small compost bin and a worm farm that sits in your garden (in the soil). You just throw in your fruit and vegetable scraps from the kitchen and that’s it, the worms that live in the soil in your garden do the rest. The worm castings and the liquid from the worm farm all go straight into the soil where they are immediately available to plants and trees.

Read more in the article Build a Worm Tunnel Vermicomposting System.