Is this deficiency or toxicity??

[Erebuss]

Some of the fan leafs have these signs and some the new small ones have these like burn tips. I’m thinking if it’s potassium deficiency the signs on the fan leaf but I can’t find out. Need help. I’m on week 8 with an autoflower week 2 of bloom. I have premix soil and go organic.

 

[LoveGrowingIt]

The leaves in the first picture look overwatered. How often do you water it? A high VPD can also cause leaf tip chlorosis.

The problem in the second picture could also be due to overwatering but could also be calcium deficiency.

Pictures of the whole plant can be helpful.

 

[Erebuss]

The leaves in the first picture look overwatered. How often do you water it? A high VPD can also cause leaf tip chlorosis.

The problem in the second picture could also be due to overwatering but could also be calcium deficiency.

Pictures of the whole plant can be helpful.

I water every 4-5 days with 2ltrs my pot is 10lt. My humidity is about 40-50%. The soil is completely dry at the top and about 80% dry 5-7cm deep.

 

[LoveGrowingIt]

I water every 4-5 days with 2ltrs my pot is 10lt. My humidity is about 40-50%. The soil is completely dry at the top and about 80% dry 5-7cm deep.

Thanks for the pictures. Your plant looks good.

Some Epsom salt for magnesium probably would be helpful. I also see slight light stress.

What are you feeding it? Some high phosphorous bloom nutrients would be helpful for bud growth.

 

[Erebuss]

Thanks for the pictures. Your plant looks good.

Some Epsom salt for magnesium probably would be helpful. I also see slight light stress.

What are you feeding it? Some high phosphorous bloom nutrients would be helpful for bud growth.

I have premix my soil with guano diffusion packet and I water only with biobizz heaven and acti Vera. I bought some epsom salt and I will add in my next water in 3 days and also I bought this PK nutr but I will wait 1-2 weeks before I feed my plant with these one

 

[LoveGrowingIt]

I have premix my soil with guano diffusion packet and I water only with biobizz heaven and acti Vera. I bought some epsom salt and I will add in my next water in 3 days and also I bought this PK nutr but I will wait 1-2 weeks before I feed my plant with these one

I'm not familiar with the nutrients you're using. That 0-39-25 should be good for flowering, but it's potent, so be careful to avoid giving the plant too much.

For the Epsom salt, use one tablespoon per gallon of water.

It's often recommended to stop feeding a plant within about four weeks of harvest. I think your plant is close to that point. So, this is a good time to add nutrients.

 

[Erebuss]

I'm not familiar with the nutrients you're using. That 0-39-25 should be good for flowering, but it's potent, so be careful to avoid giving the plant too much.

For the Epsom salt, use one tablespoon per gallon of water.

It's often recommended to stop feeding a plant within about four weeks of harvest. I think your plant is close to that point. So, this is a good time to add nutrients.

Thanks for the help I appreciate it