stunned plants, yellowing  

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Methan
(@methan)
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Hello,

Would be nice if someone could help me out with this one.

On the pictures you can see plants that suppose to be bigger (that was the idea) as they  are almost same size as they ware on veg. They some how stopped to grow up. When i switched them to flowering they grow maybe like 5 cm and thats it. With today's date it is 4th week finished of flowering, but:

- they ware never that green as suppose after switched them,

- now the stems starts to twist some how under a weight of flowers but they are not that big, the stems seems to be weak,

- the leafs on flowers some of them looks like they are weak yellow,

-the yellowing started from the bottom

 

I'm growing in coco, never had this kinda issues before, when you are looking at them they look fine from a distance but when you will come closer you can see and feel there is something wrong.

2 feedings using drain system, 30 minutes, Canna A and B, Canna boster, Canna Canazym, 7 Lumi lights 400 -600 depends of the overall temperature in grow room. EC 1.8 - 2.0, ph 6.0

Was thinking it could be Nitrogen deficiency?

 

 

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Posted : August 7, 2019 8:10 pm
Zombie Nation, 3plantsPete, Macky and 1 people liked
Macky
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Welcome to Percys Methan.

Tough one this is, but it looks to me like 2 things:

Nitrogen Excess, dark leaves, lots of leaves growing at the top

But also Potassium def:

Potassium def IMG

Reduce the canna AnB, and add some more PK 13/14, and reduce the EC just a touch 🙂 say 1.6 will be enough

"True guidance is like a torch in the forest, it doesn't show everything, but gives enough light for the next steps to be safe" -Swami Vivekananda

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Posted : August 7, 2019 8:24 pm
Methan
(@methan)
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@macky

The thing is my starting EC was 1.6 and from there problem starts to occur. My water normal ec is 0.8.

im adding pk 13/14 for 4 days now very small doses to support potassium def

Iv made flush about 7 days ago but that gave nothing i guess

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Posted : August 7, 2019 9:40 pm
Macky
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Thats a high BG EC. 1.8 should be fine then. 

Consistency is important, when you flushed, did you refeed at the same ec, or leave the plant with just water?

"True guidance is like a torch in the forest, it doesn't show everything, but gives enough light for the next steps to be safe" -Swami Vivekananda

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Posted : August 7, 2019 9:44 pm
Methan
(@methan)
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i flushed them using water then waited till next feeding cycle then i gave them water with nutrients so they had break like 13-14h using same EC lvl

 

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Posted : August 7, 2019 9:54 pm
Macky
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See this could be where the problem stems from. When you flushed, you reduce the EC of the medium, but the plant is use to a higher level of EC. Because there is less salt in the medium, than in the plant, the plant will leech them back into the medium. Taking food out of the plant. I think if you just stick with the feed you have now, they will fix up and be fine in a few more days

"True guidance is like a torch in the forest, it doesn't show everything, but gives enough light for the next steps to be safe" -Swami Vivekananda

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Posted : August 7, 2019 9:59 pm
Methan
(@methan)
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@macky

We will see then, Thank you! 

Will let you know how it went 😉

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Posted : August 7, 2019 10:04 pm
Macky
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@methan

Please do, if it gets any worse, then it will be another problem. But considering food is back to normal EC< and you have added, the extra PK, It shouldn't get any worse. 

"True guidance is like a torch in the forest, it doesn't show everything, but gives enough light for the next steps to be safe" -Swami Vivekananda

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Posted : August 7, 2019 10:14 pm
Methan
(@methan)
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@macky

I do thing they need to be flushed one more time as today i have notice how many yellow leafs is there. Or the soil is blocked or no idea whats going on. 

They got everything what they need in theory will do the flush tomorrow and will increase the EC a bit.

 

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Posted : August 8, 2019 9:48 pm
Lucas3330
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I know the pain mate, just chopped a plant that got stunted from over feeding, heart breaking to watch. But aslong you flush her well and make sure she reasonably fed too, she be good mate 

“Herb is the healing of a nation, alcohol is the destruction.”
― Bob Marley

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Posted : August 8, 2019 9:54 pm
Zombie Nation, cloudy_kitchen, Methan and 1 people liked
Lucas3330
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Try record the EC with the flush, get rough idea how much EC she was storing at bottom 

“Herb is the healing of a nation, alcohol is the destruction.”
― Bob Marley

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Posted : August 8, 2019 9:55 pm
Zombie Nation, cloudy_kitchen, Methan and 1 people liked
Macky
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Yer man, flush it good, get all the old salts out, and re feed with some new nuits lower in nitrogen and more P and K, that should sort things. 

Good luck, let us know how it goes 

"True guidance is like a torch in the forest, it doesn't show everything, but gives enough light for the next steps to be safe" -Swami Vivekananda

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Posted : August 8, 2019 9:59 pm
Methan
(@methan)
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Points:95

Any advise on the flushing method, i know 2 of them:

1. As im using Flood and drain system i was just refill my tank with water and just using my system been flooding them with clear water and then just dumping what iv got back in toilet or whatever 🙂 

or

2. Just giving them clear  water straight from the tap from the above. 3x more litres more that the pot. (yes i know that the best way should be that the water should stay a good 12h to clear it from chlor)

which way would be better you think?

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Posted : August 8, 2019 10:11 pm
Macky
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a mix of both 😉 You need 3x the amount of coco in the pot, not 3 litres more than the coco in your pot, its a lot of water

Id fill the res, flush, fill it, flush, it, and then fill it and flush one more time. That should flush the plants good. then top it back up with feed, and feed the plants. 

"True guidance is like a torch in the forest, it doesn't show everything, but gives enough light for the next steps to be safe" -Swami Vivekananda

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Posted : August 8, 2019 10:18 pm
Methan
(@methan)
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Points:95

@macky

funny thing just happened, from my judgement there is nitrogen deficiency (and potassium but that should be sorted out thanks to pk 13/14) as i can see all of the symptoms as photos are not showing everything unfortunately. Iv add some extra nitrogen with my nuts, EC raised a bit from 1,8 to 2,0, and then after the feeding when the water comes back EC jumped to 2,8!

Added fresh water to it to put it back on place to 1,8-2.0.

PH stayed at same level.

Flush is coming tomorrow.

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Posted : August 8, 2019 11:58 pm
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