Unidentified problem on Mystery plant!

[Haze4dayz]

Hey guys and @Waira. Got some troubles witha mystery Dinafem auto plant. I'll get some more pictures later tonight. But for now have these.

So here's where I started noticing the problem.

And here's it a couple days later out for training.

And here's my most recent pics.

I realised I wasn't watering enough, but it seems the yellow has carried on spreading. When I realised I wasnt watering enough I dropped my grow nutes, and started feeding 1ml biogrow, 3ml Biobizz as per a schedule I found. Plus additives.

This picture is a while ago when I realised I had to up the watering

I have used some dolomite lime as a top dress a bout 2 weeks ago. About 1teaspoon per 10l pot and watered in thinking possibly cal-mag issues.

Accurate 8 probe hovers between pH 6.5-7 between waterings. Goes up the drier it gets.

Feeding at about 700-800ppm with Tap water (300ppm roughly) which is about 8pH. Drops down to 6.4-6.6 with nutes added.

Mainly yellowing on older fan leaves but seems to be effecting a lot of leaves even if only a little bit. Some has sort of burgundy blotches on them.

If anyone can help point me in the right direction I would be very happy. At least just the information to be able to work it out myself

 

[Haze4dayz]

Problem: yellowing of older leaves and burgundy blotches on some leaves.

Medium/grow method: Biobizz light mix with 30% coco

Feed: and supplements used: Biobizz Grow, bloom, topmax, algamic, canna PK13/14, dolomite lime.

water source: Tap water

Strain/age: Dinafem mystery, nearly 9 weeks old from seed.

light used: 600w hps

Climate: 24°C 45RH

Additional info: had not been watering enough . Was watering with only 1.5l every 2 days. It started drinking a lot more in full flower and took me by surprise.

 

[the green bandit]

Hey man, at a guess I would say that the dry outs have slowed nutrient uptake. I would increase bio grow to 2ml/Ltr its really mild stuff, I would also up bloom to 4ml/ltr think you have corrected the problem already by increasing water/feed amounts. Are you adding your nutes to every watering? I could be wrong so please get a second opinion, but i use the same nutes and think you could push them a little more. My girls are day 60 something and are getting 2ml/Ltr grow 4ml/Ltr bloom 4ml/lr cal/mg every watering as well as p.k13-14 at 2ml/Ltr every third watering

 

[Haze4dayz]

Hey man, at a guess I would say that the dry outs have slowed nutrient uptake. I would increase bio grow to 2ml/Ltr its really mild stuff, I would also up bloom to 4ml/ltr think you have corrected the problem already by increasing water/feed amounts. Are you adding your nutes to every watering? I could be wrong so please get a second opinion, but i use the same nutes and think you could push them a little more. My girls are day 60 something and are getting 2ml/Ltr grow 5ml/Ltr bloom 1ml/lr cal/mg every watering as well as p.k13-14 at 2ml/Ltr every third watering

Thank you mate! It's handy that you use all the same as me. But out of curiosity what Cal mag u use? And is that canna PK13/14? If so same as me. I feed with every watering and I will try pushing the nutes up a little bit. Been using pk for this week only at 1ml/l last day tomorrow. But may cut down to once a week with it just to help out

 

[Haze4dayz]

Also what are you pHing your feed at? Wondering whether I need to play with the pH at all as it creeps back up to 7 in the soil. Maybe the more I water and feed it'll start buffering itself better... Not sure why it creeps up that high, apart from adding the dolomite lime that might be raising it up above correct level?

 

[Haze4dayz]

This is the dosage I've been following since discovering the problem. Maybe it's needs that N boost you were talking about and I've corrected but not enough... So it was lacking water and N now it's just lacking N? Hopefully... Still wait for a second opinion but sounds plausible

 

[the green bandit]

Yeah man canna pk13-14 is what I'm using. I can't remember the brand of cal/my I will check when i get home. I've only ever phed once and with all nutrients in it was around 6.5ish? I'm going to increase my pk13-14 to 4ml/ltr next week and start giving it once every 4th watering.

 

[Haze4dayz]

Yeah man canna pk13-14 is what I'm using. I can't remember the brand of cal/my I will check when i get home. I've only ever phed once and with all nutrients in it was around 6.5ish? I'm going to increase my pk13-14 to 4ml/ltr next week and start giving it once every 4th watering.

Okay buddy! I may follow your lines of thought then. Do you have a journal I can watch?

 

[Haze4dayz]

Okay buddy! I may follow your lines of thought then. Do you have a journal I can watch?

The only reason I ask about cal-mag brand is cus of organics .. but I am using pk boosters so can't matter that much? Can only get sensi Cal mag in but that has quite a bit of N in

 

[the green bandit]

Yeah man, the links in my signature