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Canna terra - iron and nitrogen deficiency?

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#1
9fingers

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Trying canna terra for the first time, mixed a little extra perlite into the mixture and planted seeds straight into 10 litre pots. The plants are 5 weeks old and 3.5 weeks old and I'm super happy with how much they've already grown.

But the plants have been a bit of a lighter green than usual so I gave them a feed of green powerfeed about a week ago. Now the 3.5 week old plant has started shooting out real yellow looking leaves. Could this be fixed with an iron supplement?


5 week old plant
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3 week old plant
Attached File  20210125_135008.jpg   207.21K   17 downloads



3 week old plant with possible iron deficiency?
Attached File  20210125_135014.jpg   138.6K   18 downloads
Attached File  20210125_135020.jpg   127.35K   17 downloads
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#2
9fingers

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By the way the plants are indica dominant and are just starting to preflower, if that makes any difference
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#3
micmac

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Maybe too much power feed , may have changed ph of soil ?

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#4
kloud9

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And transplant into a bigger pot
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#5
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Check this handy chart to make sure you diagnose properly as some conditions look similar.

post-40304-0-67708400-1611801090.jpg
I've used canna terra in the past but I only ever used the Canna Bio range of food + some pk13/14, only thing to make sure is good drainage, the terra likes to hold on to certain chems and you can get a salt build-up.

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#6
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Trying canna terra for the first time, mixed a little extra perlite into the mixture and planted seeds straight into 10 litre pots. The plants are 5 weeks old and 3.5 weeks old and I'm super happy with how much they've already grown.

But the plants have been a bit of a lighter green than usual so I gave them a feed of green powerfeed about a week ago. Now the 3.5 week old plant has started shooting out real yellow looking leaves. Could this be fixed with an iron supplement?


5 week old plant
attachicon.gif20210125_135004.jpg


3 week old plant
attachicon.gif20210125_135008.jpg



3 week old plant with possible iron deficiency?
attachicon.gif20210125_135014.jpg
attachicon.gif20210125_135020.jpg

 
I use Canna Terra all the time. Getting a bit expensive now though. I found when I used nutes other than Canna nutes the plants did not like it one bit. Not saying other nutes wont work but from my personal experience I stick with Canna Terra nutes when I use Canna Terra medium. Give it a good flush with water only, with a ph between 6.5-6.8 then water with half the required dosage of whatever nutes you are using. This url may help as well. https://www.growweed...iron-deficiency


Edited by brick, 29 January 2021 - 11:51 AM.

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