Need help asap, my autos dying fast !

T

thinkdifferent

Member
Hi there everyone.
In a bit of a panic, growing some expensive auto seeds can't really afford to get it wrong at the minute.
They're a little over 3 weeks old now, were looking superb until 2 days ago. Growing in general purpose soil under 24hr 120w LED growlight (as I have no ther option where I live), they've so far been repotted once.
Last night they all suddenly got yellowing on big bottom leaves, I checked the roots on them n they looked like they need repotting badly, figured they were suffering nitrogen deficiency so I repotted straight away, and gave them plenty water, expecting them to pick up over night, but they've rapidly gone downhill in last 24hr, some of top leaves that were looking deep green last night are starting to go yellow. PANICKING!

Any suggestions on what is causing this blight and what to do about it?

Help very much appreciated.
 
Taviddude

Taviddude

Well-Known Member
I'm not a soil pro, but I would check PH first. I would then Flush with 3 times the volume of your pot with ph'd water. I would then give it a feed at 1/4 strength, and give it a day or two.

You will have to supplement feeding if using regular general purpose soil. Right about now is when they would be running out of gas. They're probably just entering their pre-flower stretch, and neet Nitrogen.

Buy some Fox Farm feed.
 
Coho

Coho

Well-Known Member
Takes time to recover..don't overwater. Whats the pH and whats the name of the soil? pics in normal light?
 
T

thinkdifferent

Member
would really struggle to get a picture to you sorry. working on getting some PH sticks.

Have never heard about autos not liking transplants, only grown non-auto stuff in the past, always tried to get a big dense root ball by gradually going up in pot sizes. Normally works a treat.
Was looking up all my problems in the plant problems section last night, It seems their symptoms strongly suggest nitrogen starvation which I have put down to not having enough nitrogen due t being rootbound in small pots (the roots came in so quick). They may also be getting too much light, I am growing under 24hr light as I am convinced that certain people unknown to me are able to detect what I am doing by my using a timer plug, (very paranoid here), turned the light off for about 5 hrs overnight, decided that their survival most important thing and a timer may be best what'd'ya think?

Also the soil I'm using is a UK supermarket brand of general purpose soil, and I'd be buying supplements for them here in UK so US brands no good to me. Anyone able to reccommend good nitrogen supplement available in UK or some kind of measurement I can go by to get a one no-one's heard of?
That said they do not appear to be getting worse, leaves are curled down over a little more than I would like but the leaves are not getting more yellow.

Still don't know what to do...
 
cannabis love

cannabis love

Well-Known Member
Find a bottle of fish emulsion at a nursery for a quick supply if nitrogen, or any general purpose fertilizer at this point. What type of lighting are you using?
 
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