Nuitrients burn, pre-flower

[Smokedribs]

Hey guys,

First time poster and first time grower here, I have 18 plants that I've just transplanted into 11ltr pots under a 400w MH and just now added a 600w HID into the mix to get them ready for flowering. They have been in veg for 4 weeks and 4 days from clone, 18/6.

I was wanting to get a little more height out of them before I switch to 12/12 but it seems they have started flowering already. I noticed what looks like burning on the leaves I thought it could be nuitrients burn ?? I'm not sure and I don't have a ec/ppm pen to check the run off.

Can someone provide any info on why they have started flowering early, and the possible cause of the burn ?..

Thanks for having a read peps (✷‿✷)

 

[LED GROW GUY CANADA]

That looks more like some kind 9d deficiency, too should get at least a 3 part nutrient mixture and wait till the soil drys out after feeding. Maybe mix in some cal/mag because that can cause a lot of issues if that's the problem

 

[Smokedribs]

Thanks alot grow guy.

I've got a 2 part A B nutrient mix, and I'm also using a grow enhancer.
But Ill grab a cal/mag and see how it reacts.

(✷‿✷)

 

[LED GROW GUY CANADA]

Right on, hope it turns out good for you. Different strains react different to nutrients too so make sure you give them plain water in between feedings