Can somebody help me identify the issue

[danman68]

Hi this nutrient burn or deficiency thanks

 

[ArtfulCodger]

My first guess would be nute burn. How much and how often are you feeding? What media are you growing in?

 

[danman68]

Hi I'm growing in soil and I'm feeding them with maxigro 300 ppm 1 time a day thanks very much.
The photo is of the new growth

 

[ArtfulCodger]

I'm feeding them with maxigro 300 ppm 1 time a day

Yep. Nute burn. Way too much nutes. I don't know what soil you're using, but if I'm in an amended mix, I might feed 600 ppms two or three times for the entire grow.

 

[danman68]

I have never grown in soil before I'm used to Rockwool and nft I'm only using 4×4 pots and I'm planning on putting them on an nft table soon.is the best cause of action to flush them thanks again

 

[ArtfulCodger]

The first thing I'd do is check the ppms/EC of your runoff to make sure the random guy on the internet (me) is right about the over-feeding. Assuming he is, then I'd flush it down to below 1,000 ppms/2 EC. If you over-do it on the flush, feed back up to that level or a little higher. In amended soils like Happy Frog or Ocean Forest, I manage around that level. When my runoff falls below that number, I either feed (about 600 ppms) or transplant into fresh amended soil.

 

[danman68]

Hi the runoff was 950ppm.

 

[ArtfulCodger]

Hi the runoff was 950ppm.

I wouldn't bother flushing.

 

[danman68]

So what is the problem thanks

 

[ArtfulCodger]

So what is the problem thanks

In the past, it's been over-fed. In your most recent pic, it looks like the lower growth is the most burned, and the newer growth is the least burned. I'd back off your feeding a bit going forward. It might be as simple as the plant is now big enough to tolerate how much you're feeding. But I'd keep an eye out and adjust accordingly.