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Yellowing leaves
Screwiestarted grow question 4 years ago
I’m thinking this is probably a deficiency. The leaves that are falling off/ going yellow are getting bigger. Any ideas? Im adding CALMAG to the water every second time.
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Leaves. Dropping off
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TheUk420Showanswered grow question 4 years ago
Its nitrogen defiancy my friend. Thats clear from it starting at the lower leaves the grower is right she does not need much nitrogen at this stage but nitrogen is a mobile nutrient within the plant meaning that no matter what stage she is in she will require some form of nitrogen to stay healthy other wise she will eat her fans for it like she has done here im not trying to argue with the other grower I respect his answer its not wrong per say but yeah mobile nutrients being NPK plus cal mag are always in use by the plant but are needed in different concentrations at different stages this is what feed tables are for :) I would advise looking into the nutrients brand you have grab their feed table and follow that as a base line. Though the best thing is one dose of nitrogen should be enough to solve this :)
Screwieanswered grow question 4 years ago
Thanks guys. I got some Biobizz Bloom which has Nitrogen in it.
Apparently its not such a major problem being nearly 5 weeks in now but going to add that plus CALMAG to the watering for the next few weeks before flushing.
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Screwieanswered grow question 4 years ago
Hi there,
Ill check out about the N in CALMAG. Not sure. Out of the 3 GCS’s 2 have yellow leaves. 1 which i never defoliated looks to be hardly affected.
The Jack herer is just fine. I give the same amount of water to each of them ever 2 - 2 and a half days. Im wondering if it has anything to do with the watering, or PH of the water. I think PH is around 5.5.
I dont use other nutrients as im using Sohum living soil. Going to a grow shop tomorrow with pics to get something if they think its required!
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BlackCat_13answered grow question 4 years ago
Hi there.
If in vegetative state, i would say Nitrogen deficiency, but should not be that.
This also happens in late flower stage, how much time since flower started?
Also, how much CalMag and other nuts you using? There's a lot of CalMag products that have Nitrogen in it, you should be watching that too, they don't need N at this stage.
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