Not getting any better

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Q

Qman

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I have a couple problems I need some opinions on

First, is a problem I posted before, in the first pic see how the leaf fringes are pointing up? People have said this is nute burn (I have only fed 1/4 strength so far) they also said heat stress (the light is 24" away and it stays in the 70's) and some have said I have been underwatering (not the case). Both my Churches are doing this, this one is the worst.

Second, in the second and third pics are my GDP's. See how they are turning pale? someone told my this was a Cal/Mag deficiency (I just got some Cal/Mag that I will feed next feed) BUT IDK, it looks more like a MG or N deficiency but again I am unsure. The last pic is all of the ladies, the 2 in the middle are my Grapefruit Diesels and they have no problems...

I am all organic vegging under a 1000w, ph 6.2, rh@ 40% and temps @ 70 - 78

Any suggestions?
 
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Smoking Gun

Smoking Gun

2,235
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There are two things that will cause leaves to curl like that. First is genetic. Some plants have genetic deformities like that, take OG for example, look at pics of well grow OG and you will notice the edges of the leaves curl up. The second reason they would curl like that is to release excess moisture. The stomata are on the undersides of the leaves, and when they have too much moisture they curl up in an effort to release the excess moisture. So I would hold off on watering them for a few days. If it were me I would actually wait until my medium was almost dry the plant really needs water. If the curl is still there it may simply be genetics.

As for the discoloring, I would venture to say it is an Mg deficiency, so keep using your Cal/Mag solution,a s it certainly cannot hurt. If the problem progresses I would suggest adjusting the pH of your nutrient solution.

On that note, I you never stated what medium you are growing in and what nutrients you are using. That information would surely help people give you some more feedback on your problems.

My final bit of advice would be to pick up a good grow guide. Jorge Cervantes' book is fantastic, I and many other growers, have found that book to be an invaluable tool. There is also a book called Marijuana Garden Saver by J.C. Stitch, it is a very good book and focuses on dealing with garden problems. Also for some free info try here:http://www.icmag.com/ic/showthread.php?t=11688. I hope I have been of some help to you.
 
Q

Qman

118
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I am running Aurora soil and all Aurora nutes

I will let them dry out some more and see what happens with the leaves, I also read about this in my "Bible", I have this and many other books that I refer to.

This is around my 10th grow? (only) and I always seem to have different issues - none the same as the last, and most not bad (just learning). I like to take pics and use my tools (this forum) that I have available, cos sometimes the more eyeballs the better...
 
J

Jalisco Kid

Guest
I have found leafs turn up when it's too much of... and roll down when there is not enough of.... . Your leaves are turning up looks like they are next to your fan, is it always in that position? I have that look on plants that are in front of a fan and humidifier. It's the price they pay for my room. Not saying that is the problem but if you play with your plants you would figure it out. All growers can pass on is what happened to them, which might necessarily fit your situation.Suerte JK
Plant Physiology by Taiz is a good book to keep around. I bought mine from ebay or amazon.
 
B

Bio Kid

42
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yo Qman one of my sensi star cuts does that exact curling if I put it too close to a fan maybe thats what is happening to yours....and on another note my cal mag has a npk of 2-0-0 so maybe itll clear up the yellowing you are having if you use it. Are you watering with r/o or tap water?
 
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