9fingerleafs
New member
i just took another look at it and it says "... coco coir gives off large amounts of potassium, witch is readily absorbed and lock out calcium and magnesium; the result is cal-mag deficiency symptoms but with tip and later marginal leaf burn from potassium accumulating at this points. true salt burn comes not from too many ions in the tissue but from a reversal of the osmotic gradient, pulling water out of the plants not moving it into the plant. the fix in coco is to raise the EC, not back it up and leach"
so what i understand is that hes talking about coco because coco is prone to potassium excess due to the plant matter decomposing into nutrients, but it could also apply for any potassium enriched medium like soil. so the increase in EC should be a balanced NPK and calmag solution, high enough to enter the plant cells by osmosis, the problem here is the lack of water inside the plant so you gotta force it in.... this is my interpretation please feel free to disagree haha
so what i understand is that hes talking about coco because coco is prone to potassium excess due to the plant matter decomposing into nutrients, but it could also apply for any potassium enriched medium like soil. so the increase in EC should be a balanced NPK and calmag solution, high enough to enter the plant cells by osmosis, the problem here is the lack of water inside the plant so you gotta force it in.... this is my interpretation please feel free to disagree haha
