I have one going organic right now, I used Dr. Earth garden soil as my base. I added bone meal, feather meal, blood meal, kelp meal, alfalfa, Jamaican guano (I think, whichever one is 0-0-12), earth worm castings, perlite, vermiculite, coconut coir, and great white (glomus intraradices)+water soluble myco grow from
www.fungi.com. But a great place to start is subcool's super soil. Get that down, then you'll start to get the hang of it. I'm to the point to where I don't really measure anything. I mix small batches and just add a little of this a little of that.
And don't forget, you don't have to buy "nutrients" for organics. It's better to use things like liquid kelp, guano, fish emulsions, and compost teas to feed when once they've used up what was currently available in the soil. I feel that to do organics properly you need to have a decent foundation of knowledge in such subjects as soil ecology, mycology, botany, and some chemistry. You need to understand the process in which organic matter breaks down, and the rate at which they do. Then you'll understand how to care for those microscopic things that break down the organic matter, how much of each amendment to add, and what to use and when to use it once you have to add more food to the soil.
