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Composting is beneficial for many reasons. It reduces waste in landfills and improves soil quality by providing food for earthworms and beneficial microbes that break it down into nutrients. Part of being an organic gardener is learning to compost. Can you just toss leaves, weeds, and kitchen scraps together? Well, yes — and no. To make a well-balanced compost requires several things.
Compost piles need two kinds of food — greens and browns. Greens can be fresh plant materials such as weeds, kitchen scraps (no meat), green leaves, coffee grounds, fresh manure, etc. Browns are dried materials such as leaves, straw, and sawdust. Greens provide nitrogen and browns provide carbon — both essential in creating balanced compost.
The microbial action that turns organic matter into compost requires good air circulation. Without air, materials rot, they don’t compost. To make sure your compost pile has plenty of air, be sure to mix both green and brown ingredients together. From time to time, break your compost pile apart with a pitchfork or spade and pile it back together in a looser heap. When you start your compost pile, start with several inches of twigs on the bottom to aid in aeration.
Proper moisture is essential for microbial action to take place. A compost pile should be damp, but not soggy. Lightly moisten dry ingredients when you add them. During long stretches of damp weather, you might want to cover your pile with a tarp to keep out excess moisture. During dry weather, you’ll want to water the pile lightly.
The minimum size for a successful compost pile is about three square feet. Smaller than that and the pile cannot insulate itself well enough to keep the microbial action going. A smaller pile will still break down but can take three times as long to form useable compost.
Do not compost:
If you’re a totally organic gardener, don’t add peels from conventionally grown fruits or veggies because of pesticide residues.
You can add:
Be sure to have the pH of your compost checked before using it to see if it needs adjusting. You want a neutral pH of around 7.