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Old 03-13-2019, 08:59 AM #1
Bonvondon
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Advise Needed Leaf Issues After Re-pot!

Ok, so everything was going well a week ago.

Im growing in a light organic soil. Potted up from 1.5L pots to 6L Pots 5 days ago. This time I decided to add some organic amendments to the soil. Plants are 4 weeks old.

Neem Meal
Kelp Meal
Rock Dust
Dolomite Lime

Most of the plants seem ok but some have looked unhappy and have started to show rust coloured patches on the leaves and discolouration on the leaf tips.

I gave them a light feed of fish mix at 2ml per litre and also some bio silicone at .5ml per litre and that's it.

Feeling like i did something wrong with the soil mix. I added around 2-3 handfuls of each amendment to 50 litres of soil.

Am under a 600w mh.

Any advice as to what I should do would be greatly appreciated?
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Old 03-13-2019, 02:47 PM #2
Lost in a SOG
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Good idea going more organic but 2 or 3 hands fulls as a measurement seems a bit haphazard,, you were asking for trouble..

Your pH might be a shock to them now.. its probably much higher now due to the dolomite.. light mixes are often 6.2 ish.. your soil in now possibly nearer 7..

I could be wrong but i would unpot, pull away new soil from edges and repot asap anyway as you have no idea how things will go going forward, but they dont look good..

Get some more reading in around here on organic mixes and ask some questions.

Right idea just looks wrongly applied..
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Old 03-13-2019, 03:08 PM #3
TanzanianMagic
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Quote:
Originally Posted by Bonvondon View Post
Ok, so everything was going well a week ago.

Im growing in a light organic soil. Potted up from 1.5L pots to 6L Pots 5 days ago. This time I decided to add some organic amendments to the soil. Plants are 4 weeks old.

Neem Meal
Kelp Meal
Rock Dust
Dolomite Lime

Most of the plants seem ok but some have looked unhappy and have started to show rust coloured patches on the leaves and discolouration on the leaf tips.

I gave them a light feed of fish mix at 2ml per litre and also some bio silicone at .5ml per litre and that's it.

Feeling like i did something wrong with the soil mix. I added around 2-3 handfuls of each amendment to 50 litres of soil.

Am under a 600w mh.

Any advice as to what I should do would be greatly appreciated?
Whatever is going on is expressed as calcium deficiency. Most likely because the plant uses a lot of calcium at this point and the roots were slightly burned.

The soil mix you've described isn't very hot, however the dolomite lime takes a while to mellow out, at least a week and a month is even better.

However when you pot up, you have to always make sure the roots don't get into contact with hot soil, and that's relative to the soil the plant is growing in. For instance the plant's soil has an EC of 1.6, and the new soil an EC of 2.0, the roots are going to burn.

So the solution is to fill a pot with a drainage layer, then hot soil, then an inch of light soil, and put the plant's rootball on top of that. And fill in the sides with more light soil. That way, the roots can't burn.

Or grow in coco coir, which has no nutrients at all, and with which you can pot up at will.
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Old 03-13-2019, 06:33 PM #4
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Thank you for your responses guys.

I am going to get some new soil and attempt to repot again but its going to be a few days before it gets here!

Is there anything I can do to lessen the effect of the dolomite lime for now. Would a flush help?

Thanks again for taking the time to reply.
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Old 03-13-2019, 07:36 PM #5
TanzanianMagic
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Originally Posted by Bonvondon View Post
Thank you for your responses guys.

I am going to get some new soil and attempt to repot again but its going to be a few days before it gets here!

Is there anything I can do to lessen the effect of the dolomite lime for now. Would a flush help?

Thanks again for taking the time to reply.
You can give the plants a light solution of flowering food. (Say 0.4 EC of Biobizz Bloom, BioSevia Bloom, even a high P/K late flowering food, etc.) The higher P will stimulate root growth. Enzymes (a few drops, not the recommended amount) will break down damaged roots faster.
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Old 03-13-2019, 09:02 PM #6
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Quote:
Originally Posted by TanzanianMagic View Post
You can give the plants a light solution of flowering food. (Say 0.4 EC of Biobizz Bloom, BioSevia Bloom, even a high P/K late flowering food, etc.) The higher P will stimulate root growth. Enzymes (a few drops, not the recommended amount) will break down damaged roots faster.
Thank you, I will do that as soon as they need a drink!
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Old 03-13-2019, 10:59 PM #7
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Dont flush them excessively though that will cause root rot..

Id just hold out until you can repot..

Raise your lights a bit imo and make sure youre running ideal VPD which will lower extra stress and slow metabolism down..
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Old 03-14-2019, 12:11 AM #8
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Originally Posted by Lost in a SOG View Post
Dont flush them excessively though that will cause root rot..

Id just hold out until you can repot..

Raise your lights a bit imo and make sure youre running ideal VPD which will lower extra stress and slow metabolism down..
Thank you for the sound advice. Feel so annoyed at myself! We live and learn. I just hope they can bounce back, plus its going to mess with my female to male ratios as it happened at the worse time lol.

Fingers crossed though
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Old 03-14-2019, 12:52 AM #9
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They will once you get them in a better mix.. ime never try and change a mistake in the mix through liquid feed if you can still repot.. its always been a failure for me.

You might lose a week or so in new root growth over green biomass after the repot into new soil but at least this way you have a chance of producing some great pot at the end..

Plus no one can really diagnose exactly whats going on so advising to repot in new soil seems to me to be the best advice by far.
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Old 03-14-2019, 04:14 PM #10
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Originally Posted by Lost in a SOG View Post
They will once you get them in a better mix.. ime never try and change a mistake in the mix through liquid feed if you can still repot.. its always been a failure for me.

You might lose a week or so in new root growth over green biomass after the repot into new soil but at least this way you have a chance of producing some great pot at the end..

Plus no one can really diagnose exactly whats going on so advising to repot in new soil seems to me to be the best advice by far.
That's exactly what I am going to do. I plan on saving the soil that i pull off the plants and letting sit for a while before i use it again. I take it all the dolomite lime will have chilled out by then lol. I mean is that soil still ok to use at a later date or should I just let it go?
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