I'm going to be doing a coco coir grow with just Jack's blossom booster 10-30-20 as a 1 part method. Wanting to know if anyone else has done this or uses Jack's in general and wondering if you just follow the feeding amount on the tub every feeding the entire grow or if you up the amount till your ppm meter reads the target number needed?
I'm using MG which s pretty much the same idea as Jacks.
I just keep adding ferts in the watering can till I hit my target EC. I think going by the directions the EC is about 1.8 . My guess is Jacks would give similar results but that's just a guess. I'm in dirt in a pot but plant is 8 feet tall so something is working . I just picked up a new cheap EC meter off Amazon for $15 and it was correct when tested in 2'77 EC test solution