I mix one part peat moss, one part ewc and one part perlite. For every cubic foot of mix I add a cup of agricultural lime and a cup of each: alfalfa meal, blood meal, bone meal, epsoma plantone organic fertilizer, soft rock phosphate and greensand. If I could locally source kelp meal, I'd add it in the mix as probably item #1, as it's high in potassium and all of the trace minerals. I thoroughly water the mix until it's about as "wet as a wrung out sponge", then fill large trash barrel with the mix and cover. I don't place the "cooking" barrel of mix out in direct sun. Nice and warm, but shaded is best. It's best if you have ewc tea already brewed and ready when you initially wet your new mix, to flood the mix with billions more microorganisms than were already contained in the castings and to some extent, the peat. They say to let it cook for 1-2 months and that's the best policy to give the mix time to break down and make available all the organic amendments added, but I've used it after only 2 weeks with great success, as it will continue to cool and break down. I like to add granular mycos directly to the planting hole, so as to assure direct contact of mycos with root system of new transplant. Again, I like to have a ewc tea prepared at this point to use as a transplant drench, so as to add a new crop of workers on the scene.
That's it. I add a tsp of molasses per gal of water once in early to mid-veg and once in mid bloom, with the rest being water only. I do like to keep a nice layer of mulch made of some kind of organic material in my pots and I practice no-till by not disturbing the soil surface after transplant. After harvest I ease back the mulch and cut the stalk off level with soil surface. At this point the soil mix in my airports is still plenty "hot" for another run, so I gently dig out a hole between the old stalk I just cut and the air pot's edge, removing and disturbing only enough soil to complete new transplant. I probably should add a different myco at this point, directly to roots at transplant, but the existing rootball and system already in the container will do nicely. I then add a thin layer of fresh castings, less than 1/2", and mulch thickly. I like to make and apply an SST -- seed sprout tea from barley or most any kind of seed -- to add enzymes to help further break down and make nutrients and trace elements available to the plant.
I read about guys continuing to no till and continue mulching and using ewc teas for more grows, but I found a drop off after the second grow in 7.5 gallons, so I dump my old mix into my kiddie pool and re-amend the soil with all the above amendments at 1/2 cup each. I like to alternate containers at this point and some with soil that has been cooking during the last two grows, while the re-amended mix get wet down, preferably with ewc tea and sets for two cycles itself.
One last note is down the road I think my base above of peat, ewc and perlite, with lime added to buffer the acidic peat, will remain constant, but I'd like to amend with alfalfa meal, kelp mean, crab meal, fish meal, neem meal, Azomite and granite dust.