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Is this Phosphorus deficiency ?
Gi773sstarted grow question 5 years ago
is this Phosphorus deficiency ? these symptoms started maybe 2 to 3 weeks after switching over to the Biobizz line .. what you guys think?
so now i started to add Biocanna's Bloom and Boost like i used in my prev 2 grows but it seems to continue ..
what you guys think?
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NobodysBudsanswered grow question 5 years ago
calculate out what you have been feeding it.... ppms from labels..
if P is 50+, probably not.
Any other method is just a guess at figuring this out. It look more like a K or P toxicity. i'd guess teh interveinal chlorosis and spots are a lockout of Mg.
could be wrong.. your labels and some math and recent behaviour (hopefully you have notes of how much and when you feed) will help you figure this out in a more precise way.
You are in bloom, so it's dangerous to give water-only... could hurt yield more than help.. i'd dial back a tad and see how it reacts... or, do the math and compare notes, i bet the answer will be obvious armed with that information.
don't know how? There's tones of how-tos out there
https://www.rollitup.org/t/understanding-and-calculating-nutrient-ppm.995409/
Gi773sanswered grow question 5 years ago
yeah actually it will prob be more from to much then to little .. ph and environment is always good , i have to admit that since making the biobizz food i get 1500 to 1800 ppm sometimes.. compared to Biocanna i got about 500 ppm less usual
Alrighty Then, i'll give plain water today as a mini flush and will reduce food to 1000 ppm from next feeding on
Thanks for your insight guys ;)
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Fruitgroweranswered grow question 5 years ago
Similar to what's happening to my bigdevil. I put it down to an overdose of pk boost, potentially locking out other bits like Calcium and magnesium. It could also be because of an incorrect ph. Or could be potassium defeciency, this is more likely if you haven't been feeding to heavily and can make the leaves yellow, dry and crisp.
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