S
sharlson
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- 1
hi. was wondering if any of you farmers out there have ever tested your coco medium for potassium content at different points throughout a cycle. I know the innate potassium content is there and have researched on cannabis boards and science papers, but have yet to really find an answer as to how much is actually present and how much the medium gives off in a 3 or 4 month cycle after Ca and Mg have displaced it on the exchange sites. Have seen it written to be anywhere from 20 -100 ppms. It seems that for every formula exclusive to coco and people using it, that there is an equal amount of folks using ferts that do not seem to account for residual k. I realize mj has a wide nutrient band it can perform in, but i was just wondering.....