Yellow Leafs Dying, is it Low Ni or Something Else?

[greenisgod]

These are outdoor potted plants, 2-3 weeks into flowering. Photos attached showing yellow dying leaves. Up to flower they received primarily water and little to no nutrients. Lots of sun. Were green and healthy. In flower I refilled my nutrients and started using the General Hydroponics (purple, green, pink) nutrients as directed first week. Second week many of the fan leafs turned yellow. I stopped the nutrients and just watered after. They continued to yellow for the next 2 weeks with sunlight and water.

Is this a Ni def?
Could crowding roots cause this? I split the pot of one plant to repot it in a larger one and the roots looked fine. No rot. Nice mass. Some crowding as it was solid. Maybe it's too solid?

I don't think it's the watering. They receive water multiple times a day. They have weep holes for drainage if necessary.

I'm at a loss... thoughts for this rookie?

 

[Imzzaudae]

Hello and welcome to the forum,
Please post how many ml of Flora Micro you added to water?
How much many ml of Flora Grow
How many ml Flora bloom
What was your ppm ?
Something tells me you dramatically changed the soil PH when you fed her and she has locked out nitrogen
This is not Calcium K
This is nitrogen deficiency. Did you PH the water after mixing?
At 2 weeks into flower your plant is still stretching. It will need Veg levels of Flora Grow for at least another week.

Being pot bound will not cause this.
What is this plant planted in that you have not had to feed her?

 

[greenisgod]

Hello and welcome to the forum,
Please post how many ml of Flora Micro you added to water?
How much many ml of Flora Grow
How many ml Flora bloom
What was your ppm ?
Something tells me you dramatically changed the soil PH when you fed her and she has locked out nitrogen
This is not Calcium K
This is nitrogen deficiency. Did you PH the water after mixing?
At 2 weeks into flower your plant is still stretching. It will need Veg levels of Flora Grow for at least another week.

Being pot bound will not cause this.
What is this plant planted in that you have not had to feed her?

I mixed 15 ml floramicro to 1.5 gal of water. Then I mixed 10 ml of floragro and a bit more than 20 ml of florabloom into the same container.

It's planted in a 1.5+ foot diameter x 1 ft tall cylindrical plastic planter that 3 ft black cedars came in / where grew in.

What do you mean by it may have locked out Calcium?

Today I tried to test the pH and I guess it's about neutral to a bit acidic ph 6? See photo.

Recommendations of next steps?

 

[Imzzaudae]

This is not calcium lockout don't worry about that.

I'm thinking Nitrogen lockout. This plant is very hungry and stripping it's fan leaves.
This is happening right after you mixed and fed a nutrient solution you mixed so we need to figure out why.
I'm not suggesting you did something wrong. I'm on your side man. I need to ask questions in order to help you.
You mentioned never feeding this plant before this, Was it in a preloaded soil mix of some kind?

Take an hour and read threw this. See if anything comes to mind.
https://www.royalqueenseeds.com/blog-how-do-you-prevent-and-treat-nutrient-lockout-in-cannabis-n665

 

[greenisgod]

This is not calcium lockout don't worry about that.

I'm thinking Nitrogen lockout. This plant is very hungry and stripping it's fan leaves.
This is happening right after you mixed and fed a nutrient solution you mixed so we need to figure out why.
I'm not suggesting you did something wrong. I'm on your side man. I need to ask questions in order to help you.
You mentioned never feeding this plant before this, Was it in a preloaded soil mix of some kind?

Take an hour and read threw this. See if anything comes to mind.
https://www.royalqueenseeds.com/blog-how-do-you-prevent-and-treat-nutrient-lockout-in-cannabis-n665

Thanks for your help.

So maybe I need to increase the pH by using use dolomite lime, wood ash, ground oyster shells, crushed egg shells, or hardwood ash... don't have many options on hand here. I can do cracked eggs shells, hardwood ash, or go buy a pH upper or downer from a store.

Quote from your link
"If you’re growing with synthetic nutrients, gradually switch to a flowering formula that contains the ideal ratio of nitrogen, phosphorus, and potassium for the bloom phase. If you continue to apply high levels of nitrogen as plants begin to flower, you increase the risk of nutrient lockout."

Fill me in if you have any thoughts. Nut ratio recommendations... or other products to try.

 

[Imzzaudae]

Don't go off half calked bud. Lets see what some of the other guys think.
I don't have an easy answer for you. I believe your problem is PH related and has to do with the solution you watered with.
Would you say your a country boy rather than city? Although I do grow in other mediums.
For the most part I grow outdoors organic. Real home made living soil organic. Make my own fertilizers. Everything.

Country Boys EZ Organic Grow

I started with a cutting of wild grass. You can just as easily do this with lawn clippings in a 20L bucket. Filled a 55 gal drum 3/4 full of wild grass and fresh cut alfalfa. 2 nice scoops of 2 year old compost. Added 2x20L buckets of Microbial solution and topped the barrel off with rain...

www.thcfarmer.com

I do not believe adding anything you mentioned to your soil will fix the problem at this time.
I think you need to do a proper run off PH test to find out where the pot is at.
Then take what ever corrective actions needed to fix the PH problem >should there be one< there may not be.
Then mix a new solution, properly ph test it before re watering your plant.
Only then can we have some expectation that what you are doing is going to help rather than complicate the issue.
For all I know you where all baked and dub bled up on the bloom and did not give it any grow.
I'm looking at a picture on a computer and there are more than one reason for this issue.

 

[Porky1982]

These are outdoor potted plants, 2-3 weeks into flowering. Photos attached showing yellow dying leaves. Up to flower they received primarily water and little to no nutrients. Lots of sun. Were green and healthy. In flower I refilled my nutrients and started using the General Hydroponics (purple, green, pink) nutrients as directed first week. Second week many of the fan leafs turned yellow. I stopped the nutrients and just watered after. They continued to yellow for the next 2 weeks with sunlight and water.

Is this a Ni def?
Could crowding roots cause this? I split the pot of one plant to repot it in a larger one and the roots looked fine. No rot. Nice mass. Some crowding as it was solid. Maybe it's too solid?

I don't think it's the watering. They receive water multiple times a day. They have weep holes for drainage if necessary.

I'm at a loss... thoughts for this rookie?

You have big plants in tiny pots. They are hungry for more N!!
I would repot into something 3x the size at least!!