the N-P-K ratio is 2-4-4 that is the bloom ive been feeding them i actually gave them a feeding of 4-3-3 N-P-K Ratio about 4 days ago hoping the raised level of phosphate and potassium would help correct the problem. Since the cal/mag treatment seemed to do absolutely nothing. and when i ph,d the soil i got a pH of 7.5 !! yikes so what i did was use distilled water and then used ph down to bring down the soil ph . So im hoping that works... and i have always been feeding with distilled water and i have always checked the ph before feeding them as well and making sure they were always 6.5 going into the soil. and i am in about the 7th week of growing. these are autoflowers as well. And im using General Hydroponics Go Box and hopefully that answers all questions so thanks again guys !!!
and you're
growing in greenlite soil
Presumably this soil is for adult plants and has nutrient content, yes? Also, you haven't said how old they are, what pot size, what plant size...
I'll presume your soil is good quality and they're in a 10 litre (2 gal) or larger pot - when you water them, the soil releases good stuff for your plants to eat - on top of that, currently you've also chucked the equivalent of a 6-7-7 feed on it
and cal mag and - surprise surprise - it's made no difference. That'll be because there is no deficiency, there is an over abundance of phosphates - that's why the leaves are burned. Imagine you eat a good healthy diet and then supplement it with vitamins to the max - what's going to happen? Most of those vits go down the toilet because you don't need them, but if you keep going you'll get an adverse reaction - too much calcium, too much magnesium, too much iron etc., and you'll start showing some symptoms - and too much of anything is bad,
by definition. Stop feeding it to death.
