What is going on with these plants?

[Budget Buds]

Northern lights strain in a living organic soil, i amended with an organic fertilizer , all was going well but about 3 days ago the leaves started showing this, theyre isolated on the lower/middle growth , all three plants are showing the issue. pretty new to soil growing so any insight is greatly appreciated

 

[TanzanianMagic]

I'd need more information - pot size, temperatures, medium, nutrients used, pH and EC or PPM.

Whatever the cause, it is showing up as a Phosphorus deficiency or lockout. Considering the short internodal space on the plants, the wrinkling of the leaves, there may be some other environmental factor going on, like low pH, overwatering, etc.

So I'd l like to know:

- medium used
- EC or PPM
- pH the medium, nutrients, tapwater
- nutrients used

 

[Budget Buds]

I'd need more information - pot size, temperatures, medium, nutrients used, pH and EC or PPM.

Whatever the cause, it is showing up as a Phosphorus deficiency or lockout. Considering the short internodal space on the plants, the wrinkling of the leaves, there may be some other environmental factor going on, like low pH, overwatering, etc.

So I'd l like to know:

- medium used
- EC or PPM
- pH the medium, nutrients, tapwater
- nutrients used

2 gal pot, 81 during daytime, 70s at night, living soil amended with trifecta + organic nutrients, ph is unknown. using well hard well water.

internode space is genetic. I did water the hell out of them like 3 days ago, this popped up after, maybe its just a temp from the watering??

 

[TanzanianMagic]

2 gal pot, 81 during daytime, 70s at night, living soil amended with trifecta + organic nutrients, ph is unknown. using well hard well water.

internode space is genetic. I did water the hell out of them like 3 days ago, this popped up after, maybe its just a temp from the watering??

The well water may be a problem, because it can change with the seasons.

Watering stress could be it, however the short internodal space didn't start 3 days ago.

Genes still need nutrients to be expressed to their full potential. Something is locking out potassium.

You should get a pH meter and an EC or PPM meter, so you know exactly what went into the plant and what is coming out.

Because both P and K are mobile nutrients, which get locked out at a low pH, my guess is that the pH is too low and watering could have created a low oxygen environment which would pull down the pH even more.

Time to get a pH and EC meter and know for certain.

 

[Budget Buds]

The well water may be a problem, because it can change with the seasons.

Watering stress could be it, however the short internodal space didn't start 3 days ago.

Genes still need nutrients to be expressed to their full potential. Something is locking out potassium.

You should get a pH meter and an EC or PPM meter, so you know exactly what went into the plant and what is coming out.

Because both P and K are mobile nutrients, which get locked out at a low pH, my guess is that the pH is too low and watering could have created a low oxygen environment which would pull down the pH even more.

Time to get a pH and EC meter and know for certain.

I have several ph and ppm meters, but all i can test is the water runoff, they wont test soil ph. is there a process for testing soil with a ph meter other than just runoff? Maybe take ph netural water and mix a soil sample into the water and then test to see if it pulls the ph down or up?

The short internodal spacing is genetic, the issue i'm having isn't causing it, It's a northern lights strain and has short nodes . The plants were all super healthy until after I just watered them 3 days ago.

 

[TanzanianMagic]

I have several ph and ppm meters, but all i can test is the water runoff, they wont test soil ph. is there a process for testing soil with a ph meter other than just runoff? Maybe take ph netural water and mix a soil sample into the water and then test to see if it pulls the ph down or up?

The short internodal spacing is genetic, the issue i'm having isn't causing it, It's a northern lights strain and has short nodes . The plants were all super healthy until after I just watered them 3 days ago.

What I do is measure the pH and EC of filtered water, pour some through the medium, and collect the first bottle cap amount. Then you can see if it's higher or lower than the water that went in.

Precise measurements of soil EC and pH are harder, especially in organic soil, where a lot of the nutrients are contained in something else. Even soil meters only measure the mosture between the soil particles.

However it should give you a clear picture of whether the soil tends towards acidic or alkaline.

 

[Porky82]

Agree with what @TanzanianMagic said but it looks like pH swing to me. What is the pH of ya well water?
Do the pots have drain holes in the bottom? They do look over watered too.

 

[Creeperpark]

It's important to know what the intake water is before using it. If you have a starting water source that is 500 ppm and with a pH of 8.7 it will block the nutrient uptake of other nutrients after a few weeks because the 500 ppm accumulates over time. The only time one doesn't need to test the starting water is if they start with pure water like RO or RAIN. Start with pure water if possible and test everything in the discharge tray. Test from the start of the grow to the finish to learn what you have and the difference between high and low EC.

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