Rusting leafs?

[stawawager]

Please help diagnose my problem foliage, thanks:

Symptoms: droopy leafs – spots – tops yellowing / yellower on top.

Well water with iron not running through whole house filter.

Lowering pH to 6.0 - 6.1 with 25 drops of hydrochloric acid / gallon.

Using 3 (correction: 7) year old nutes ¼ tsp / gallon.

Been adding ¼ tsp cal mag +iron last two waterings.

Water almost daily when moisture probe reads dry with 1 quart / girl.

6/18 light schedule.

 

[HydoDan]

What is the NPK of your nutes? Too me they look overwatered and hungry..

 

[Nutty sKunK]

Check the variables. Have you had success with this water/nutes/media/light before?

 

[stawawager]

What is the NPK of your nutes? Too me they look overwatered and hungry..

9 3 6


I was wrong, it's 7 years old. I Google npk for cannabis - result 3 1 2. Is 3 1 2 just a ratio of 9 3 6 and you use more product to bring it up to 9 3 6?

 

[stawawager]

Check the variables. Have you had success with this water/nutes/media/light before?

Pretty good success but had some ugly leafs in the past but this seems to be accelerating.

 

[HydoDan]

I was wrong, it's 7 years old.

I recommend increasing the nutrients to 1 teaspoon per gallon as the manufacturer suggests. Water until there's a small amount of runoff, then wait until the pots feel light before watering again. Typically, I water every three days. Watering a quart every day is excessive; overwatering is often due to frequency, not the amount.

 

[Greengrouch]

Increase your feed, water less frequently but feed every watering

 

[stawawager]

I recommend increasing the nutrients to 1 teaspoon per gallon as the manufacturer suggests. Water until there's a small amount of runoff, then wait until the pots feel light before watering again. Typically, I water every three days. Watering a quart every day is excessive; overwatering is often due to frequency, not the amount.

I'm growing in soil, I think it 1/4 tsp per gallon. Maybe you're thinking of hydro? I included the back of the jug's instructions.

My nutes are 7 years old, I'm guessing I need new stuff. What do you recommend for npk?

 

[Hollatchaboy]

Increase your feed, water less frequently but feed every watering

If he's in organic soil, adding feed every watering i believe is a no no.

 

[HydoDan]

I'm looking at the production dose and you're looking at the maintenance dose..
Do you have a ppm/ec meter? If not you should get one.. That way you know exactly how much you're feeding.. How heavy are your pots? Do they ever get a good dry back? If they're always wet the roots can't take up oxygen.. And..
Fertilizer will not go bad as long as it’s stored properly1. Synthetic liquid fertilizer rarely goes bad before you use it all, but liquid fertilizers that use organic ingredients do go bad as no stabilizing chemicals are used to keep it from degrading2. Fertilizers can lose their nutrient and chemical properties when exposed to high humidity3.

 

[Greengrouch]

If he's in organic soil, adding feed every watering i believe is a no no.

It looks likes he’s using dynagro and potting mix though.

Might not be enough drainage in those buckets, maybe elevate them a bit and drill a couple more holes in the bottom

 

[stawawager]

If he's in organic soil, adding feed every watering i believe is a no no.

Happy frog.

 

[stawawager]

It looks likes he’s using dynagro and potting mix though.

Might not be enough drainage in those buckets, maybe elevate them a bit and drill a couple more holes in the bottom

I know that overwatering will give droopy leaves but will it also make them yellowish?

 

[stawawager]

I'm looking at the production dose and you're looking at the maintenance dose..
Do you have a ppm/ec meter? If not you should get one.. That way you know exactly how much you're feeding.. How heavy are your pots? Do they ever get a good dry back? If they're always wet the roots can't take up oxygen.. And..
Fertilizer will not go bad as long as it’s stored properly1. Synthetic liquid fertilizer rarely goes bad before you use it all, but liquid fertilizers that use organic ingredients do go bad as no stabilizing chemicals are used to keep it from degrading2. Fertilizers can lose their nutrient and chemical properties when exposed to high humidity3.

They do dry out usually and get lightweight.

I do have a PPM meter/ec. I'll educate myself on it.

I'm guessing this liquid Dyna grow is synthetic,
else it would say organic.

 

[stawawager]

If he's in organic soil, adding feed every watering i believe is a no no.

I heard on the Strain Show that the organic soil is good for 30 days with no nutrients, than you have to start adding them.

These are 50 days into the grow but I've added nutes for a good part of that. I added a couple days of cal mag +iron and that made the rusting worse I'm pretty sure.

 

[HydoDan]

You may have introduced nutes too soon/often.... Do a soil slurry test, check ec and ph..
You may have to do a flush and reset things..

 

[Hollatchaboy]

Also, I would say not to feed every watering, in organic soil. Isn't there a schedule for that, like feed, water, water, feed?

 

[stawawager]

You may have introduced nutes too soon/often.... Do a soil slurry test, check ec and ph..
You may have to do a flush and reset things..

Yeah, going to go for the reset for a week or more.

I'm at 50 days. How long would you go before flowering?

 

[nxsov180db]

No one mentioned light or DLI. This. looks like stress from too much DLI to me.

 

[420AD]

might be a phosphorus deficit and I would turn down the lights a little, might help 'em recover.
how's your temperature look like?