Need insight. Nitrogen deficiency or other?

[Cwmoore577]

Plant 1

Plant 1

Plant 1

Plant 2

Plant 2

Plant 2



Ok so just to give as much info as possible I currently only have 3 plants. One of which looks healthy while the other two have shown issues.

They are currently around 6 weeks old.
Growing in Fox Farm Ocean Forest soil. Started them outdoor weeks 1-4 then brought them inside once the sun went down and put them under an small LED light (all I had before upgrading) to get an additional 3-4 hours of light to keep them on close to 18-6. Upgraded my light to a 600w full spectrum grow light so from week 4 until now they’ve been inside full time under 18-6 schedule. I have been using distilled water and made sure the PH is between 6.3-6.8 before watering. Also have General Organics BioThrive Grow liquid nutrients (NPK is 4-3-3). Didn’t give any of the nutrient until about week 3 and did a watering with a light dose (2 tsp/gal) to see how they would react. After week 4 I now usually give it once every 2 waterings so about every 3rd day still at 2 tsp per gal. Also just transplanted them to larger containers using Mykos root stabilizer. New growth shot up after transplant but older growth still curled under, yellowing leaves on the two plants in the pictures.

My question is.. do you think it’s nitrogen deficient or could it be something else?

Any help much appreciated! Any other info needed that I’ve not covered please let me know.

 

[hotrodharley]

Plant 2 is nitrogen excess. Possibly overwatered as well. Or do you have a fan blowing on it?

 

[Logan Burke]

Definitely N toxicity on the second and last pic's plant....but I'm really not sure on the first one. It has the clawing of N tox, but the yellowing is a bit unusual for N tox.

 

[Kushash]

Definitely N toxicity on the second and last pic's plant....but I'm really not sure on the first one. It has the clawing of N tox, but the yellowing is a bit unusual for N tox.

The last picture also shows some yellowing between the veins.
Might be Magnesium.
However he says he just transplanted to fresh soil so if it was a deficiency it probably was deficient in the old soil not the new soil, the new soil should fix the problem itself if it is a deficiency IMO.

 

[Cwmoore577]

The last picture also shows some yellowing between the veins.
Might be Magnesium.
However he says he just transplanted to fresh soil so if it was a deficiency it probably was deficient in the old soil not the new soil, the new soil should fix the problem itself if it is a deficiency IMO.

Ok so would you guys recommend cutting out nutes and use only distilled for now? Should I flush them? What should I do for them.

 

[Cwmoore577]

Plant 2 is nitrogen excess. Possibly overwatered as well. Or do you have a fan blowing on it?

There is a fan but it’s almost always off and only used last couple days but it’s not directly on the plants and not rustled much at all. I do have a moisture meter and have been careful of overwatering.

 

[hotrodharley]

There is a fan but it’s almost always off and only used last couple days but it’s not directly on the plants and not rustled much at all. I do have a moisture meter and have been careful of overwatering.

Then leaf shape is probably all due to nitrogen excess. It goes away quickly. Do not flush!!!

 

[Cwmoore577]

Definitely N toxicity on the second and last pic's plant....but I'm really not sure on the first one. It has the clawing of N tox, but the yellowing is a bit unusual for N tox.

That’s what I thought. Unsure whether to flush and cut nutes bc of the clawing or to up nutes bc of the yellowing.

 

[hotrodharley]

And the leaf is not going to revert to normal. Once they’re damaged they’re damaged.

 

[Cwmoore577]

Then leaf shape is probably all due to nitrogen excess. It goes away quickly. Do not flush!!!

Ok. Cut nutes or keep normal dosage? Maybe cut because they’ve just been transplanted into fresh soil?
New growth looks good and has shot up after transplant.

 

[hotrodharley]

That’s what I thought. Unsure whether to flush and cut nutes bc of the clawing or to up nutes bc of the yellowing.

Reduce nutes and don’t flush.

 

[Cwmoore577]

Reduce nutes and don’t flush.

Ok, thanks for your time.

 

[hotrodharley]

Ok, thanks for your time.

They look pretty good really. Good job so far. Keep it simple and keep going. You can do an entire grow at 5O% nutes and get bud.

 

[Cwmoore577]

They look pretty good really. Good job so far. Keep it simple and keep going. You can do an entire grow at 5O% nutes and get bud.

Yea, it’s only my second grow. First was ruined during a storm while on vacation. This time I’ve done a lot of research and have way more equipment. Hoping for the best. Would you recommend topping the plants or letting them be? I only grow for medicinal need.