MischiefGrows
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I just cut back on my feedings after stretch, to 4 ml/ from 6 and my chem 4s are now developing necrotic spots at the leaf margins. Calcium deficiency, no? Feeding around 900 ppms and can't imagine it being nutes burn as the spots developed once I lowered my feedings. I was taught to do 2:3 parts calmag to base during stretch and cut down to 1:2 afterwards until flush. And was thinking that might be a bit much. Obviously some strains will need more than others but this sounds like wayy more than anyone else responding is using. (My plants for the past 2 cycles using canna have not shown signs of deficiency or toxicity but ends up burning black so I am trying to figure out the imbalance in my plants diets)
It depends on the media used. In soil almost certainly you will need none.@Aqua Man i just had a quick read through this maybe good to discuss I’m heading out to work but would like to get the bone chewed Ofer later . OD
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