Yellow leaves ‘middle’ of plant

[Nutty sKunK]

Hey guys,

So my one of my plants middle/upper fan leaves are yellowing.

I’m also getting purple veins which have just come through.

She is 4 weeks flower and is growing in peat moss (basically it’s fed with synthetics)

She is only being fed 350ppm and is about 4’ Tall. I had some issue with nitrogen toxicity but that’s cured now.

Could it be from under feeding?

Cheers.

 

[frizfrazjaz]

I’ve had DJ Short blueberry have purple stems. I think you may be looking at a phosphorus deficiency though. What flower nutes are you using?

 

[Nutty sKunK]

I’ve had DJ Short blueberry have purple stems. I think you may be looking at a phosphorus deficiency though. What flower nutes are you using?

I’ve been using hesi brand line up. There bloom complex is a 3-3-4 and adds 300ppm of NPK plus micro etc.

I use to feed every watering and they loved it. Then I added some beneficial microbes which produce nitrogen as they feed which led to a nitrogen tox.

So I just used plain water/calmag then started getting other micro deficiencies.

So basically I think they need either more food or a flush then feed..

Ppms are a little high due to not eating that nitrogen. And PH is 6.5 which is about bang on.

 

[frizfrazjaz]

I’ve been using hesi brand line up. There bloom complex is a 3-3-4 and adds 300ppm of NPK plus micro etc.

I use to feed every watering and they loved it. Then I added some beneficial microbes which produce nitrogen as they feed which led to a nitrogen tox.

So I just used plain water/calmag then started getting other micro deficiencies.

So basically I think they need either more food or a flush then feed..

Ppms are a little high due to not eating that nitrogen. And PH is 6.5 which is about bang on.

With the yellowing of the leaves, you may want to feed before you try a flush. Your ppm’s are close. I know about mid flower, I’ll go as high as 475 ppm. That’s on top of the Cal Mag.

 

[Nutty sKunK]

With the yellowing of the leaves, you may want to feed before you try a flush. Your ppm’s are close. I know about mid flower, I’ll go as high as 475 ppm. That’s on top of the Cal Mag.

See I was thinking of feeding after the flush. Basically I want to strip the soil of excess salts, pretty sure I could see crystals forming in the soil and my runroff when dry goes very white. Then feed with a balanced feed so they don't starve..

Now I just need 120l of ph'd water xD

 

[frizfrazjaz]

See I was thinking of feeding after the flush. Basically I want to strip the soil of excess salts, pretty sure I could see crystals forming in the soil and my runroff when dry goes very white. Then feed with a balanced feed so they don't starve..

Now I just need 120l of ph'd water xD

Cool. Good luck.