Early Yellowing Leaves Please Help

Trillian said:

Could it be a nitrogen deficiency?

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Trillian said:

Biobizz Grow, bloom, acti vera, canna rhyzotinic, AN Big Bud and i just started to use AN Overdrive.

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Trillian said:

i dont have TDS meter.

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BongerChonger said:

Yes. But not in the sense that there isn't plenty Nitrogen in your nutrient already.

That's a fair bit of stuff.
It's a few weeks too early for heavy bloom boosters. In my opinion this is the source of your nitrogen deficiency, if it is one.
Remember a decent 2 part nutrient should be able to cover a whole cycle, without additional supplements.
I'd at least get rid of the overdrive and rehash the big bud. You have a lot more than 2-3 weeks left
(6+ weeks left probably)

You need one.

GL.

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Greengrouch said:

Probably nutrient or ph lockout. I’d flush and feed salts(almost any 1 part bloom should do) with just one plant I’d pick up a qt of this stuff General Hydroponics FloraNova Bloom, One-Part Nutrient, 1 Quart https://a.co/d/4k3LFzD flush with ph’d water and feed with ph’d nutrient solution. View attachment 5226916

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Trillian said:

Hey thanks for your usefull reply a lot!

The other girls have started to get black spots and showing some nutrient lock effects.

What i believe the biobizz fertilizers are allready lowering the ph and i was adding some ph down without looking the final ph values. Which i believe i've lowered the ph so much, they are in a lockdown. I justs flushed them with alg a mic now. When should i start to give fertilizers again?

I guess i dont need to add PH down since biobizz fertilizers altering it to 6.2-6.5 allready... what an idiot me i've never checked the run down water ph...

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BongerChonger said:

Nah, don't start flushing like a maniac. Just adjust your input to what it's supposed to be and run to waste each time you water or feed.
Try to ignore what's coming out in the waste. Pot's are tiny and it's not a reliable measurement for soil or potting mix anyway. It's only seldom used for inert media.
Don't sweat it. They don't look bad at all!

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Trillian said:

Hey guys,

My fifth grow is about to conclude. Im growing 4 different types of strains all from the seedsman.

Im having some problems with the Alaskan Diesel Auto, which is the fastest one among the others.

All of my girls have gone nutrient burn or lock down before cause of the many reasons, i was a guerllia grower with minimum needs but this time i got the pro requirements as needed.

My question is they r getting yellow way faster than its normal at the ending period of flowering.

Since i burned all my plants before im applying this technique which is giving 1/4 less nutrients to avoid nutrient burn

https://www.reddit.com/r/Autoflowers/comments/20b591

But my leaves are getting yellow while pistils are %98 white.

According to date sheet i got 2 weeks left for harvest (date sheets lies u should add 2 more week i know)

But still my leaves are going crazy yellow.

Could it be a nitrogen deficiency? Im checking the PH its ok but i dont have TDS meter. Could you pls define the problem i got?

Here are some data

1.5 monts old girl,
Biobizz Light mix soil
Biobizz Grow, bloom, acti vera, canna rhyzotinic, AN Big Bud and i just started to use AN Overdrive.

I got 1x240 W quantum board 1x55 W white+red led board and 200w of cob led

Their distance to plant is 35 CM / 13 inches. could it be light burn?

The other plants look nice just one of them is going lime green.

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