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Is this nute burn? I've looked at the pages showing defeciencies but this yellowing is coming from the center of leaves with green tips
Is this nute burn? Yellowing in center of leaves?
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Not trying to hijack this thread, but this is exactly what my leaves are looking like. I grow in soil inside and use Big Bud (4 tsp. per gal. water), Overdrive (2 tsp. per gal. of water), and Liquid Karma (2 1/4 tsp. per gal. water) for every watering, which is about once a week. I use filtered water. This was the best looking grow I've had in years and now I'm afraid I'm going to lose it. Any suggestions at all will be much appreciated!
Couldn't find the camera for the life of me. But my plants look identical to the photos provided by 'stranger'. Should I just flush with water? It would be chlorinated water if I have to have a lot of water. I can set out about 8 gals. of water to wait for the chlorine to evaporate if this is the way I need to go. I'm growing in 5 gal. buckets. Well, I think they are 5 gal. They are left over cat litter buckets. Thanks!
sixxgun1
Member
First things first whats the ph? i used tap at first then noticed the ph was up and down. if its too high what i did was add 1 tsp. of UNSULFURED molasses per gallon and it dropped alittle over 0.5 i use distilled, it reads 7.0 after adding the molasses to that i get a constant 6.5.
shnkrmn
Well-Known Member
Plants early in flower need extra calcium and magnesium and with a deficiency the leaf tips typically curl up like that get dead patches that spread and eventually die.
Are the less affected leaves turning lighter between the veins? They will get necrotic patches, curl up and die too unless you treat quickly.This can be quickly fixed with a foliar spray of epsom salts. It's a $1.29 cent cure.
But I'm guessing the real cause of your deficiency is pH lockout. You need to have control of it to allow your plants to uptake all the nutrients they need and since you are using tap water, you really shouldn't be having those problems with cal-mag unless your pH is out of whack.
OK, Thanks! I'll go visit my friendly neighborhood grow store tomorrow and see what they suggest for checking ph. Is 6.5 what I'm aiming for? I had some epsom salts here and did a foliar spray just a few minutes ago. I found a note that said 1/2 tsp. per 32 oz. water. Does that sound right to you? I haven't noticed any changes to the smaller leaves yet, but I know it's just a matter of time. How often should I do the epsom salt spray and for how long? Oh man, I want to save this crop!
shnkrmn
Well-Known Member
Sharqueen, flushing will only increase your deficiency. Get a pH pen and some pH up and pH down. they can be had for 20 dollars or so. Then you will be able to control the pH of your nute solution. Make up plenty of whatever you use and test the pH. Adjust it to 6.5 or whatever your target is and flood your buckets with it. You will be able to test the runoff too which will give you more understanding of what's going on with your plants. Gradually, correctly pH'd nute solution will solve the problem that you now need to fix with epsom salts.
I haven't seen your plants though and am primarily responding to the OP. THAT plant is pretty easy to diagnose because I've been there, done that.
shnkrmn
Well-Known Member
You can repeat that in 4 or 5 days.Eventually solving the pH problem will cover the situation. You can't just go on spraying Epsom salts, though; they can cause their own problems if taken too far. yes to the 1/2 tsp.per 32 oz. Add 2 drops of dishwashing liiquid. This loosens the surface tension of the solution and allows it to spread onto/into the leaves very quickly.
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