Its only really technical to start off. I always recommend people test their soil. Usually your country govt. extension office will do this for you for free if you bring them samples. Lime if you need to and then start adding manures. Rabbit manures is best. Goat and Sheep manure is good too. Horse is good but will bring in lots of weeds. Chicken and Cow is usually too hot and needs to be composted first. Bottom line if you keep adding natural compost materials, your garden will have most of the nutrients to be successful. But its always good to get it tested first. Some people test every year but I don't.