Things I add to the dark soil pile that I have going are crushed charcoal , used coffee grounds, fresh and rotting green stuff, fruits as well as pulverized porcelain and rockdust. I feed it left over cake, chips, bread and dried fruit. I also add a fish emulsion/fertilizer made from the renegade big head carp. If you can't get Shafer's Fish fertilizer and have a sportsman in the family maybe you can just get out the "Super bass-o-matic" and add fish remains to that!
Bassomatic - AOL Video
Here is a picture that shows how fast the fish emulsion acts. I splashed a few ounces of watered down emulsion
(1:20 parts water) onto the soil of a house plant that was languishing for a year. In 2 days a fungal bloom spread over the plant and over the next few days it put out a couple new leaves. This after not doing anything for a year. I hope it is working as fast in the terra preta pile.
Picture by patsapeachygal - AOL Pictures
Picture by patsapeachygal - AOL Pictures
