Clawing after one feed??

Hi all

tent 2X2
quantum light 150W
3 plants in 11L pot
soil - 15% perlite, 15% vermiculite, 40% soil, 10% humus

2 plants - Critical CBD (only one will remain - I will choose the best)
1 plant - Blue dream

1 month + 5 days since seed

I notice some minor N deficiency in the 2 CBD plants
So yesterday I gave them first feed -

2.5 ml per liter of soil nova mix (NPK 7:3:6)

2 ml per liter of cal mag (NPK 4:0:0)


Today I see that the 2 CBD plants are with Clawing leaves tips.
* this is not from wind cause I didn't change the vent position, and its happened over night.

Or maybe is just simple one time over watering?

Its strange cause I had N deficiency, and I gave N, and clawing consider to be too much N...

Any advice?
Thanks



Here are some photos
This is before, was some N deficiency




And this is 24 after the feed

Anyone please?

Its only the tip of the leaves that are clawing...

Dim ya light or move it up a couple inches

Not familiar with your medium but your plant appears more overwatered than an N prob. Over reactions can be worse than the issue itself. Go smoke a doob and let the plant tell you the next step.

WeedLover487 said:

Anyone please?

Its only the tip of the leaves that are clawing...

Click to expand...

Hey man how’s it going. You know I don’t think it was nitrogen deficiency in your first pic. If it was the whole leaf would go yellow not between the veins. I think it’s mg or zinc deficiency. So since your problem wasn’t N to start with additional N you gave could have made it too much nitrogen(nitrogen toxicity) hence the clawing. I would cut back on nitrogen next feeding and try to feed more mg and zinc. Read about it. Good luck

If you want optimal growth (that's why I grow), you must catch problems early.

That first pic shows beginning of a problem. The 2nd pic induces panic mode.

The first things I would do is doublecheck pH of feed, measure ph and ppms of runoff for each plant.

Oldreefer said:

Not familiar with your medium but your plant appears more overwatered than an N prob. Over reactions can be worse than the issue itself. Go smoke a doob and let the plant tell you the next step.

Click to expand...

Ha ha I eat 4 cookies each 20mg this morning...
Why over reaction, I never grow CBD strain and trying to do my best, no panic here

Yuv said:

Hey man how’s it going. You know I don’t think it was nitrogen deficiency in your first pic. If it was the whole leaf would go yellow not between the veins. I think it’s mg or zinc deficiency. So since your problem wasn’t N to start with additional N you gave could have made it too much nitrogen(nitrogen toxicity) hence the clawing. I would cut back on nitrogen next feeding and try to feed more mg and zinc. Read about it. Good luck

Click to expand...

Good point.
I gave CAL MAG also, I will try give only that in the next watering.

athlete said:

If you want optimal growth (that's why I grow), you must catch problems early.

That first pic shows beginning of a problem. The 2nd pic induces panic mode.

The first things I would do is doublecheck pH of feed, measure ph and ppms of runoff for each plant.

Click to expand...

Why panic mode, didn't get ya...
What should be the PH feed? to check the run off or just the water with nutes?
I was told soil should not fix PH and give tap water...
I have ph meter and ph up + down

Thank you all <3

I like to overreact.

You should know what the pH feed should be at.

The runoff shouldn't be more than 1 pH point off of your feed - give or take. PPMs of the runoff will ideally be about the same as your feed.

I'm offering troubleshooting steps.

As far as I remember its 6.5-7 but as I said for soil its not really matter as I been told, just use tap water (from my country its 7.5-8 ph)
I never got into PPMs.. have to read about it, again, was told to leave it aside for soil...

Ya are over feeding mate . Was still half asleep when a looked this morning . Slow down on the ec couse before ya know it they will be curling a lot more than they are now .
What is ya ec feed going in ????

WeedLover487 said:

As far as I remember its 6.5-7 but as I said for soil its not really matter as I been told, just use tap water (from my country its 7.5-8 ph)
I never got into PPMs.. have to read about it, again, was told to leave it aside for soil...

Click to expand...

If ya ph is 7.5 - 8 , standard , then ya DO need to adjust to between 6.2 - 7 , I would be aiming for 6.8 though .
But then again I would be using bat special soil which has buffers so no need to adjust ph . But I don't use soil no more . Happy growing

Trickyticky said:

If ya ph is 7.5 - 8 , standard , then ya DO need to adjust to between 6.2 - 7 , I would be aiming for 6.8 though .
But then again I would be using bat special soil which has buffers so no need to adjust ph . But I don't use soil no more . Happy growing

Click to expand...

soil - 15% perlite, 15% vermiculite, 40% soil, 10% humus
Isn't that buffers?

I will adjust ph.

BTW over feeding - It was my first feed and not even max dose.

Are you sure I need to test ec for soil? is it so important?

One more options is go feed them with BioBizz BioGrow, I have it also, its gentle than the Nova soil mix.

Ec is important

WeedLover487 said:

soil - 15% perlite, 15% vermiculite, 40% soil, 10% humus
Isn't that buffers?

I will adjust ph.

BTW over feeding - It was my first feed and not even max dose.

Are you sure I need to test ec for soil? is it so important?

One more options is go feed them with BioBizz BioGrow, I have it also, its gentle than the Nova soil mix.

Click to expand...

most common buffer is oyster shell or dolomite lime

WeedLover487 said:

Hi all

tent 2X2
quantum light 150W
3 plants in 11L pot
soil - 15% perlite, 15% vermiculite, 40% soil, 10% humus

2 plants - Critical CBD (only one will remain - I will choose the best)
1 plant - Blue dream

1 month + 5 days since seed

I notice some minor N deficiency in the 2 CBD plants
So yesterday I gave them first feed -

2.5 ml per liter of soil nova mix (NPK 7:3:6)

Amazon.com : Bio Nova BNSSM5L Soil SuperMix Liquid Fertilizer, 5 Liters : Garden & Outdoor

Amazon.com : Bio Nova BNSSM5L Soil SuperMix Liquid Fertilizer, 5 Liters : Garden & Outdoor

www.amazon.com

2 ml per liter of cal mag (NPK 4:0:0)

https://www.amazon.com/Advanced-Nutrients-Sensi-Cal-Mag-Nutrient/dp/B00P8EVEHG/

Today I see that the 2 CBD plants are with Clawing leaves tips.
* this is not from wind cause I didn't change the vent position, and its happened over night.

Or maybe is just simple one time over watering?

Its strange cause I had N deficiency, and I gave N, and clawing consider to be too much N...

Fix Curling or Clawing Cannabis Leaves | Grow Weed Easy

Learn about the various things that cause cannabis leaf curling or clawing, and get the solutions!

www.growweedeasy.com

Any advice?
Thanks



Here are some photos
This is before, was some N deficiency

View attachment 4752242


And this is 24 after the feed

View attachment 4752243

View attachment 4752244

Click to expand...

magnesium deficiency probably caused by being over 7.0 ph. you thought was N DEFICIENCY but now you have N toxicity. stop feeding fert, correct ph.

go buy Epsom salt, aswell

Ok thanks.
BTW they look much better today.

So to sum it up -

Check PH- adjust it to 6.8
No N for now, only CAL MAG

I have ph up + ph down so no need in buying Epsom salt.

Thanks!

The edin salts is mag supplement

Epsom