We recently decided to try our hands at no-dig gardening. The best option for a raised bed was to cut down two old water tanks into thirds and fill them with compostable materials.My brother has done a permaculture trainer's course so we hit him up for some tips! We collected old newspapers from the newsagency, sawdust from the woodwork room at our highschool and old straw from a friend's shed. That gave us our carbon content.
Another friend has a chook farm so he very generously gave us a huge load of chicken manure, taking care of the nitrogen content. As you can see, we still have lots to do. Each garden has to be layered with carbon and nitrogen materials, sort of like a big lasagne. Once it has settled we will be able to plant our vegies. We also set up compost bins made from wooden pallets. This will give us the ongoing compost we need to fertilise our gardens.