Early Yellowing Leaves Please Help

[trillian]

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


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.

[GEORGE]

Looks normal, leaves just eating up their good stuff.

[MonsterEnergy]

should really remove all those lower bud sites and leaves
as the plant comes to the end of flower they strip all sugars from the lower shaded growth

also looks like she was stretching looking for light

[V8]

You say PH is good. What is a good PH?

How much are you feeding? She lookes hungry. Overdrive is for the end of flower. You have like 5 weeks to go so no need for it yet.

canna rhyzotinic is no need anymore as she has finished her rootzone

V8

[trillian]

Hey ppl

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...

[Bud Lightyear]

Hey ppl

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...

Can you explain exactly what products you're using and at what ratios you are using them, how many ml per litre ?


Regards BL