Nitrogen toxicity with no claw? Cant believe im still having issues...Help needed.

firsttimeARE

firsttimeARE

Well-Known Member
I notice some of the shiny dark green leaves I have on two vegging plants have this dry/dull appearance in some places(only on old fan leaves that have had time to build up the nitrogen toxicity, the other leaves look normal green).

I look at it under the microscope and it looks like a lot of reflection from the leaf(shiny spots) with dark green behind it.

The dull parts look like powdery mildew, but its not as I cannot wipe it off and humidity has been 15%-40% over the past week(what my hygrometer says when I review max/min). And basically the whole plants life its been at that or lower due to being in winter.

My PH floats from 5.6-6.0 over 24hours. I was feeding .8EC until the feed was dropped to .5EC over 2 days and then I bumped it up to 1.0EC. They are week 6 from clone.

My food is Cultured Solutions Veg A: 5-0-.3 Veg B: 1.3-2-5.9

So my question is if im going over the PH range every day, and my feed was dropping(indicating too low of a feed) then how the hell are my plants displaying a nitrogen toxicity?
 
I'm also running into phosphorus deficiencies a lot with this new nutrient.

I'll clone off healthy plants and i'll get the purple stems from the plant not uptaking nutes because no roots. But as the plant grows it takes about 5 weeks to let the phosphorus def. go. And these two trouble plants with the nitrogen toxicity still have purple stems and streaks of purple in the main stalk after 6 weeks.
 
Maybe genetics. This is a 2nd generation and the mom i cloned from showed a nitrogen toxicity in the form of the claw while in flower. Im thinking from too much N towards the end of veg. And then i kept veg nutes in for first week of flower.

Could it be my plant is eating the phosphorus entirely and leaving just N and K? 3-1-3 ratio and my plants still havent recovered from the phosphorus def. Acquired in the cloner. I change my water out entirely after it gets to like a gallon left as to not skew ratios too much.

Can i keep my ph at like 6.1 and feed some bloom nutes with veg to get a more 1-1-1 ratio so it absorbs more P and less of N. Or maybe a 1-2-2 ratio?
 
They do get the claw while in flower. I have one in flower for 18 days and its clawing. The mother clawed in flower around this time.

I have another clone in flower at about 12 days that hasntshown the claw yet. I switched out its res last night with 3ml/gal magpro. 15 ml total bloom part a and 30ml total bloom part b and 20ml total pk boost.
 
I have and have seen a decrease on its progression. I think 1.4EC, while keeping steady was too much for the plants, was too much. I'm just dealing with a dropping EC and rising PH everyday. I'm keeping my flowering plants at 1.2EC and vegging plants at around 1.0EC

I haven't been supplementing Calmag, but my nutes have some in them. Read it could be a Calcium deficiency. But not getting the spotting like i've had before with Calcium deficiencies.
 
Do you have a single res feeding multiple plants? Maybe that could explain the overall ppm dropping, while the individual plant gets too much. I got some n toxicity with my current grow. I was running dg grow through 12/12 stretch because I was out of flower nutes. Only feeding 450 ppm to 11 plants... but some of the leaves turned dark green and papery and the yield is behind. I picked up some more flower nutes.... but damage done.
 
Single bucket DWC.

Its clone that went out to flower a couple weeks after looks way better. Its buds are about the same size as well. Pretty confident it was too much N.

Although now its other clones that just made it to flower are showing a Mg deficiency as I was using about 1/2 the part A(which had all the N and all the Mg as well) to part B

Giving up on this strain and this nutrient line. I would get dark green leaves with Dyna-gro, but they'd never ramhorn. Going back to Ionic and calmag. Was so simple and stable.
 
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