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Tips turning yellow in veg

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Gward20
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Tips turning yellow in veg

Post by Gward20 »

Hi, does anyone have any idea what has caused my plants leaves to go like this ? ThankImage

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Re: Tips turning yellow in veg

Post by GMO »

what feeds you using mate?

looks like they had a touch of PK early from here
Image
“If you can't explain it to a six year old, you don't understand it yourself.” -Albert Einstein

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Re: Tips turning yellow in veg

Post by Gward20 »

Just canna a & b and rhizo tonic, since taking this picture I gave them a feed of canna a & b and calmag and it’s got worse. It’s only happening to 1plant though. I’m thinking of giving here a good flush of phd water and seeing if that helps.

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Re: Tips turning yellow in veg

Post by Gward20 »

Also I only use them about 1/3rd strength. For a 10l mix I put 15ml A + B and about 8ml rhizotonic which usually gets my ph about 1.1. Both nutrients recommend 4ml to every litre so I don’t think it’s nutrient burn. Ph 5.7-5.9

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Re: Tips turning yellow in veg

Post by Marcus »

I'd just give it A+B at around 2ml/L. (possibly up that to 2.5 if she wants more)

No need for rhizo now, or for calmag anyway.

If in doubt, give it a good flush with plain old tap water, then feed at 2ml/L. :oik!:
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The Aspie Toker (Fri Mar 27, 2020 8:32 am)

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Re: Tips turning yellow in veg

Post by Gward20 »

Thanks Marcus i think that’s what I will be doing today, should I flush and then give a feed of a+b or flush then a day or 2 later feed the a+b ?

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Re: Tips turning yellow in veg

Post by Marcus »

Gward20 wrote:
Fri Mar 27, 2020 10:15 am
Thanks Marcus i think that’s what I will be doing today, should I flush and then give a feed of a+b or flush then a day or 2 later feed the a+b ?
If they need flushing, flush them then give them a feed straight away when you're sure the medium has been run through enough.

:oik!:

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Re: Tips turning yellow in veg

Post by Gward20 »

Okay thanks Marcus I appreciate the help 👍

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Re: Tips turning yellow in veg

Post by kbag »

Marcus is spot on with using cal/mag you have to watch out as it interferes with the uptake K and vice versa in coco. Good flush and back to basics should see you fine.

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Re: Tips turning yellow in veg

Post by Gward20 »

Thanks kbag, any suggestions on how many litres to put through them ? Using 20l airpots

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Re: Tips turning yellow in veg

Post by kbag »

As a rule its 3x the pot size what will be 60 liters through each pot ouch lol. I normally take one plant at time into the bathroom and feel the bath with warm water and cold to get the water temp up to about 20/23c . I place a grill across the sink put the plant on the grill. I grab a jug and just keep going until my run off matches my base water EC. Once done i feed straight away.
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Marcus (Fri Mar 27, 2020 2:51 pm)

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Re: Tips turning yellow in veg

Post by Marcus »

Might help to wrap a bit of cling film around the pots until fully saturated coco, then it won;t all piss out the sides and you end up having to flush with 100L!!!

Big pots dude, how big is the tent you got them in and how many plants?

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Re: Tips turning yellow in veg

Post by Gward20 »

That’s gonna be some hard work haha, will be flowering in a 1.5m x 1.5m under 2 315w cmh

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Re: Tips turning yellow in veg

Post by Gward20 »

That was a pain in the ass! All 4 plants had 60 litres each through them then a feed of a+b Ec 1.3 ph 5.8. Thanks kbag and Marcus for all the help, fingers crossed the ladies improve

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