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Orange/Brown spots and marks
ijustdontgiveafanswered grow question 4 years ago
Hi there, i'd go more into the direction of calicum when it comes to the rusty spots. The leaves look pretty dark green, so i hope that you're not feeding it a bit too much (or were at a point).
Do you use tap-water and if so, do you happen to know if it's soft or hard? Do you add any calmag?
I honestly don't really like the liquid PH meters, as they're not very exact. Simple to use and maintain, yes, but not very exact.
I really would suggest to invest in a decent PH meter as well as an EC meter like the ones from bluelabs (the pens are great). Yes, it is an investment, but only then you know how much you feed your ladies and if it can be absorbed properly. Especially since your grow mentions "soilless" it's important to get the values right, to keep the plants healthy and happy until the end.
happy growing!
whoawhoaanswered grow question 4 years ago
@The_420 @ijustdontgiveaf @MadeInGermany hey guys, noticed some pre-flowering today on both ladies!!! Do this reenforce my theory of Phosphorous deficiency? Maybe they're starting to get hungry đ
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The_420answered grow question 4 years ago
Bonjour, je pense que vous avez une carrences de potassium
Les carences en potassium apparaissent par des couleurs marron ou jaunes sur le bout et les bords des feuilles, par des feuilles bouclĂŠes et par un ĂŠtirement.
PrĂŠvention
⢠Attention en utilisant des engrais. Nourrir vos plantes trop souvent peut provoquer une montĂŠe du sel et interrompre lâassimilation du potassium.
⢠Ajouter à votre compost des cendres de bois et de la farine de varech.
⢠Ne pas sur-arroser.
Solutions
⢠Rincer son substrat.
⢠Mesurer et ajuster le pH pour corriger un possible blocage des nutriments.
⢠Ajouter du fumier de poule à votre substrat.
⢠Appliquer des algues biologiques par le biais dâun spray foliaire.
J'espère que cela va t'aider bonne croissance mon ami et bonne culture !! đ
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whoawhoaanswered grow question 4 years ago
@ijustdontgiveaf I agree that it looks like Ca deficiency, but I only saw those spots on old leaves, Ca def normally would start on newer leaves, right? I'm thinking that maybe I'm having some pH instability (as I don't have a proper pH pen tester, only those color tests), and it locked absorption of Phosphorous, what do you think?
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whoawhoaanswered grow question 4 years ago
@MadeInGermany I do not have any EC tests and I only have pH color tests, so I'm not that exact on my pH levels... I use GHE color tests and try to keep it closest possible to yellow (6.0) with a tiny shade of orange, that should put my pH to 5.7~6.0
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MadeInGermanyanswered grow question 4 years ago
Hey how much is your ec worth? your Ph with 6.0 is too much for ungrounded substrate :-) go to 5.5-5.8
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whoawhoaanswered grow question 4 years ago
My newbie guess is Phosphorous and/or Magnesium deficiency... After looking at some deficiency pictures I think it could also be Calcium deficiency or Potassium excess... Basically I'm totally LOST đ
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