Seeds of Africa seedbank??? - Page 49 - Landraces - International Cannagraphic Magazine Forums

BruceBanner · 03-17-2018, 06:41 PM

Quote:

Originally Posted by TanzanianMagic

Looks like an iron deficiency. Iron gets locked out at a high pH. So the question is: what is your pH and have the plants been flushed?

pH should be between 6 and 7, so it's not pH, but just too hot soil... Flushing I don't know if it would have any effect, because I don't feed them, it's just the nutrients in the soil I bought?

When I rub the trichomes, mandarine is the main smell, but sweet carrot is now getting stronger, even smelled a faint machine oil but just a hint, and without rubbing, just smelling, it's fruity...

Only Ornamental · 03-17-2018, 09:43 PM

Naw, that's not a pure iron deficiency which usually starts at the bottom of the leaf and not the tips and it's neither just 'hot' soil.

Is it just me or did the deficiency become worse than in the first pics? Regarding iron deficiency: It seems as if some 'sucker leaves' in the buds are getting light green and that might be lacking iron but the mottled/reticulate appearance and colour of the affected middle leaves speaks for zinc, maybe also copper or boron... on the other hand, the lower older leaves seem to catch on too, mostly around the edges which points towards K or Mg deficiency. I'm still going with the zinc hypothesis as main issue but now that I think about it, it might well be a sign for the beginning of a general deficiency caused by the soil running out of nutrients (at least some). Don't know what to make out of the dark green appearance and under curling leafs... Might be the lighting or the phenotype?
The plant on the left seems to develop some issues as well.

BTW pH 7 might be the upper limit regarding micronutrients.
Do you have a tap water analysis? Some places you get it sent home yearly, can access it online, or have to call the local whatsoever it's called in your place. Might be helpful to know and doesn't cost a dime.
How are the leaves (affected old ones and terminal buds) in texture? Brittle or limp? Anything you could tell?

If the deficiency goes on like that, I'd flush with a diluted complete nutrient formula which contains all the necessary micros. Depending on tap water analysis, you might have to add some Mg or Ca to the fertiliser (if it's a liquid one).
Do you have any idea on how long your plant yet has to go till harvest? If you're chopping in two weeks, it might not be a good idea to add too much (if any) fertiliser, especially if it's rich in nitrogen. That nutrient, I'd keep on the lower end.

Limeygreen · 03-17-2018, 11:21 PM

It looks like it is too hot, too much N there, blocking your calcium and magnesium and potassium. My guess would be you have a good amount of phosphorus in there as well that is not helping. Best way would be to let her run on the drier side of things and if it is a soil that you have been draining, or should be draining, make sure you're getting your 25-30% drain on each watering.

Iron will not start from the tip and leave the base green, you will also see it on young leaves first. Only's last paragraph sums up other actions to take quite well if done earlier in the cycle but I agree with them, I wouldn't be adding fertilizer this late see how the bud leaves are still good colour over all and how close you are to harvest, take notes and improve the next round.

BruceBanner · 03-18-2018, 12:58 AM

I had 4 runs till now with identical setup and with various plants, never changed anything, just improving or trying to, never had problems with pH, just with N deficit, and this is not it or any other deficit. This plant is very sensitive to nutrients, and this is too hot soil, that's it, there is nothing more to think about, this is it for sure, look at the size of the container with new soil, and it's not just that, I am able to recognize what's going on, and it is hot soil for her, the first plant that reacted so, she also stalled in grow because of abundance of nutrients, that I also can tell, and she is too dark green, had clawed tips and few burns but not very typical ones... leaves on touch are on the harder beefier not softer side...
Plant on the left needed repoting what I did today

So the solution would be flushing, I've never done that before, how should I do it right?
I don't want to use any more nutrients especially not artificial ones.

And yes deficit is spreading, and I don't like it lol

I can't really be sure how much more she has to go, because last one ACE Panama started explosive but ripening took some time, so I can just assume, about a month to go for sure

03-17-2018, 09:43 PM	#482
Only Ornamental Spiritually inspired agnostic mad scientist Join Date: Aug 2013 Location: Somewhere in Central Europe Posts: 2,388	Naw, that's not a pure iron deficiency which usually starts at the bottom of the leaf and not the tips and it's neither just 'hot' soil. Is it just me or did the deficiency become worse than in the first pics? Regarding iron deficiency: It seems as if some 'sucker leaves' in the buds are getting light green and that might be lacking iron but the mottled/reticulate appearance and colour of the affected middle leaves speaks for zinc, maybe also copper or boron... on the other hand, the lower older leaves seem to catch on too, mostly around the edges which points towards K or Mg deficiency. I'm still going with the zinc hypothesis as main issue but now that I think about it, it might well be a sign for the beginning of a general deficiency caused by the soil running out of nutrients (at least some). Don't know what to make out of the dark green appearance and under curling leafs... Might be the lighting or the phenotype? The plant on the left seems to develop some issues as well. BTW pH 7 might be the upper limit regarding micronutrients. Do you have a tap water analysis? Some places you get it sent home yearly, can access it online, or have to call the local whatsoever it's called in your place. Might be helpful to know and doesn't cost a dime. How are the leaves (affected old ones and terminal buds) in texture? Brittle or limp? Anything you could tell? If the deficiency goes on like that, I'd flush with a diluted complete nutrient formula which contains all the necessary micros. Depending on tap water analysis, you might have to add some Mg or Ca to the fertiliser (if it's a liquid one). Do you have any idea on how long your plant yet has to go till harvest? If you're chopping in two weeks, it might not be a good idea to add too much (if any) fertiliser, especially if it's rich in nitrogen. That nutrient, I'd keep on the lower end. __________________ Growing only for ornamental reasons and because... The hemp seed hub: A thread for those who seek seeds and info on hemp, click HERE Please spare a 'like', a dear friend of mine could need some motivation. Thanks! Brainer on Retainer: Why not rent a brain by the hour? OO now on time-sharing
	Quote 2 members found this post helpful.

03-17-2018, 11:21 PM	#483
Limeygreen Senior Member Join Date: Mar 2006 Posts: 1,750	It looks like it is too hot, too much N there, blocking your calcium and magnesium and potassium. My guess would be you have a good amount of phosphorus in there as well that is not helping. Best way would be to let her run on the drier side of things and if it is a soil that you have been draining, or should be draining, make sure you're getting your 25-30% drain on each watering. Iron will not start from the tip and leave the base green, you will also see it on young leaves first. Only's last paragraph sums up other actions to take quite well if done earlier in the cycle but I agree with them, I wouldn't be adding fertilizer this late see how the bud leaves are still good colour over all and how close you are to harvest, take notes and improve the next round. __________________ Your best you try, to harm I and I, Aiming to kill. But I love you still Cause you are here to make prophecy fulfill.
	Quote 2 members found this post helpful.

03-18-2018, 12:58 AM	#484
BruceBanner Member Join Date: Jun 2014 Location: Cyberia Posts: 308	I had 4 runs till now with identical setup and with various plants, never changed anything, just improving or trying to, never had problems with pH, just with N deficit, and this is not it or any other deficit. This plant is very sensitive to nutrients, and this is too hot soil, that's it, there is nothing more to think about, this is it for sure, look at the size of the container with new soil, and it's not just that, I am able to recognize what's going on, and it is hot soil for her, the first plant that reacted so, she also stalled in grow because of abundance of nutrients, that I also can tell, and she is too dark green, had clawed tips and few burns but not very typical ones... leaves on touch are on the harder beefier not softer side... Plant on the left needed repoting what I did today So the solution would be flushing, I've never done that before, how should I do it right? I don't want to use any more nutrients especially not artificial ones. And yes deficit is spreading, and I don't like it lol I can't really be sure how much more she has to go, because last one ACE Panama started explosive but ripening took some time, so I can just assume, about a month to go for sure Last edited by BruceBanner; 03-18-2018 at 01:29 AM..
	Quote 1 members found this post helpful.