Hello, what is the difference of Activated Biochar and Biochar? I have worm castings already is the biochar needed? How often and how much to use if I am adding to homemade compost? Or potted plants and how often?

Hello, Anyone growing a persimmon tree in a pot? If so, what is your ratio for plant juice/bloom juice per gallon of water? I have a fuyu persimmon in a 15 gallon pot. Trying to tweak mine. I was giving 4 gallon of water once a week with 4oz of elm dirt plant juice. It grew tall like 6ft and put on 17 fruit but they only reached mid size and fell off. Could be because the tree was 3-4yrs old. Any insight?