Its all about the soil. If you plan on growing a survival garden or would like to start seeing real results from your current garden I have to tell you step one is great soil. I spent years trying to push my clay based soil into becoming something more than what it was. With poor soil you will fight things like compaction which will either drown your plants or dehydrate them. Composting is a vital part of the process. Good soil and sustainable food growing requires that you learn and begin your own compost pile.
This article talks about some of the more unknown benefits of compost in your garden. Compost brings nutrients to your plants and breaks up tough soil but it also has watering benefits and even carbon benefits. You will learn a lot about the other, lesser known, benefits of compost in your garden.