I used 1/3 peat moss, 1/3 2 kinds of compost (mushroom & cow in my case) and 1/3 a cheaper miracle grow garden soil.
I do think the recipe in the below site is better I just could not afford the vermiculite.
http://www.pasturemanagement.com/Howtobucketgarden.htm
I used about an inch and a half of round rock and put it around the wicking cup and across the entire bottom to help stop the soil from going through the drain holes. In this heat I am filling the resivour and top watering daily as you can imagine.
Next year I want to have some kind of hog panel wall for the tomatoes, tomatillos, vine plants to grow in. You need something quite strong to hold some of these plants up and in a wind you really need some help.
Now for the dogs...
My partner and I have both trained dogs for years. 3 of the 4 dogs we have are rescues. The rotty was emaciated and days from death when she was rescued. The cocker spaniels came from a back yard breeder with to much on her plate. Both had ear infections, matted, fleas........
The german shepherd is a puppy we kept from fostering her mom. She was put in a back window and had access to watching chickens on the other side of the glass since she was 4.5 wks of age.
Now... understand I had the rotty and spaniels before I got chickens. So, they are all leash trained, obediance trained, and have been through all kinds of tests I put them through. You can leave the rotty in a down at Petco and shop for 20 minutes and find her in the same spot waiting for you.
With that said......... the spaniels used to help herd them and once they got pecked good on the nose decided they were NOT herding dogs. They have been 110% chickens safe since day 3 or so of being outside off leash with them supervised. The Rotty on the other hand was extremely obsessive of them at first and would charge their tractor from time to time... She would be corrected for her behavior and finally figured out if you leave them alone you dont get in trouble. After a year, and plenty of consistancy regarding not looking at the chickens in their tractor we took her outside on leash (several times) with the chickens free ranging. Now remember........... this dogs obediance is 110%. After watching her behavior and Knowing my dog and body language and our own abitlities, we let her off leash with the ladies and the spaniels. We were right. She was ready. She new they were part of the pack and they had a higher spot then the dogs. There were different rules the dogs have to follow with the chickens. One is... You CANT play with the chickens. And you do not cross them. "Mom gets real testy about her chickens!"
The german shepherd in the last month or so has also been allowed off leash with the ladies and the other dogs. She is doing great! She is the only one, who is not yet allowed to be left out unattended with the ladies. Lots of TRAINING, TRAINING, TRAINING and consistancy! It can be done. I love not having to pay attention to what is happening in the yard with the chickens and the dogs when I am caring for the rabbits. And, if the dogs bark at something the chickens go running to them. It is a riot.
The lady w/4 dogs, 4 city chickens, 5 meat rabbits, their kits and a lizard