!! NEED HELP QUICK -- Nitrogen, Phosphorus ??

[brown_thumb]

Please have a look at these images. The leaves are extremely dark and curled under. They're much darker than what they look like in the photos. The younger plants are yellowing as are the lower leaves of the older plants. These plants began showing these signs two days ago. All plants are severely stunted for their age.

Is this Phosphorus deficiency, or Nitrogen toxicity, or both, or something else? Perhaps it's Nitrogen toxicity combine with overwatering?

 

[maimunji]

Give more info. Medium ,nutes, lights how much you water. Can be from 100 different things. Lights too close overwatering, wrong ph. Plants wiyh buds also looks stunted they are so small like they grow under day light.

 

[MrBungle]

or neither? looks like poor roots, likely under fed

 

[Mikell]

Overwatered.

 

[brown_thumb]

Lights too close, overwatering, underfed. Might be all three. I can't ever figure this out.

Other members say "It's easy... after all, it's just a weed". I guess I can't even grow weeds except the ones I don't want.

 

[brown_thumb]

I bought a bag of THIS STUFF as an 'emergency measure' to help with Phosphate and Calcium deficiencies. I realize it also has some Nitrogen which these plants may not need but it seemed to be a better option than bone meal.

Am I just spitting into the wind with this supplement? It has a ratio of 3-6-4.

 

[Jason Voorhees]

Give more info. Medium ,nutes, lights how much you water. Can be from 100 different things. Lights too close overwatering, wrong ph. Plants wiyh buds also looks stunted they are so small like they grow under day light.

What this guy said....it's impossible to help you out without more info. It could be too low nutes (doubt it), too much nutes causing others to lockout, wrong ph causing lockout, etc

 

[_tessarecting]

What Mikell said. Plus those pots suck.

 

[brown_thumb]

I've been using Emerald Harvest nutrients per recommended but I'm growing in soil, not hydroponic.

Soil mix is approx. 30 percent Victory Sea Blend with 30 percent rice hulls plus 30 percent perlite plus 10 percent vermiculite. Every time I feed/water I ensure plenty of drainage to flush.

These pots drain extremely well so why do they suck? I tried plastic pots with soil that had less drainage and the roots rotted. I opted for the coconut fiber pots to avoid root shock when transferring to 5 gallon buckets... just bury the 100mm fiber pots into the buckets with no need to disturb the roots.

 

[Jason Voorhees]

What kind of lights? I've seen seedlings mimic overwatering and nute issues when light was too intense.

Those look too young to be adding any sort of nute outside what's already in the soil.

 

[Jason Voorhees]

Just noticed....but that seems like a lot of aeration material...

 

[Mikell]

How often are you watering?

 

[brown_thumb]

How often are you watering?

Every day or two... sometimes three days. It depends on how damp the soil feels and how light the pots are.

 

[brown_thumb]

Just noticed....but that seems like a lot of aeration material...

It is but if I don't use that much this time of year the soil retains far too much water for too long.

 

[brown_thumb]

What kind of lights? I've seen seedlings mimic overwatering and nute issues when light was too intense.

Those look too young to be adding any sort of nute outside what's already in the soil.

I'm using THESE LIGHTS. Until recently I had them at 8-12 inches (20-30cm) from the leaves but was told they were probably too weak. Now the distance is 4-8 inches (10-20cm) from the leaves.

This issue did begin when I moved the lights but I assumed that was coincidental.

The image below was taken when the lights were farther away. I also added four more lights.

 

[Mikell]

And we're back to overwatering.

Leave one alone for 4-5 days. If it stops wilting, treat the rest the same.

At least, that is what I would do.

Cheers

 

[_tessarecting]

Whats up with the shaver

 

[brown_thumb]

Whats up with the shaver

Ha ha... it does look like a shaver, doesn't it? It's a line-level thermostat attached to a small space heater placed under the plants. I have it set to 50F (10C) to keep my babies happy.

 

[brown_thumb]

And we're back to overwatering.

Leave one alone for 4-5 days. If it stops wilting, treat the rest the same.

At least, that is what I would do.

Cheers

I'll give that a try. Thank you.

 

[brown_thumb]

The smaller plants are perking up a little bit but the leaves are developing spots. I don't want to water for another day or two so the soil will dry more because I think that and the extra heat are helping.

Does this look like I need to add some Cal/Mag the next time I water?