tomatoes Stunted and discolored

[MarineCorps]

I noticed a few tomato plants that were stunted and taking on a almost bronze color. I pulled out the worst one as it's leaves were curling, becoming gray, and dry crispy. When I pulled it out I looked at the roots but they were healthy It was receiving plenty of water and nutrients as the other plant in the pot was doing just fine. It's spread out through a few rows. Hoping to head off whatever is causing it before I have to pull any more plants

The worst plant


The other plant in the pot

[shelleybean]

Are your plants indoors or outdoors? If outdoors, how long have they been out and did you harden them off first?

[MarineCorps]

Indoors in a heated green

[RayR]

Is that coir you have them planted in? What kind of nutrients are you feeding them?

[Cole_Robbie]

It looks like massive nute burn. Maybe you're getting salt accumulation in the coir.

[MarineCorps]

Originally Posted by RayR

Is that coir you have them planted in? What kind of nutrients are you feeding them?

Yes. Its a 2 part hydroponic solution, the details of which escape me at the moment

Originally Posted by Cole_Robbie

It looks like massive nute burn. Maybe you're getting salt accumulation in the coir.

Hmm, that is possible. the coir was never flushed after being made as there was no irrigation in the greenhouse for till almost a month later and has had nothing but nute salt put into it.

[Cole_Robbie]

Have you tried using hydroton or lava rock in place of coir? I know it's too late now, but most dutch bucket systems I see use hydroton clay pebbles.

And now that I think of it, I have also seen nutrient products that are specifically designed for use with cocopeat. I wonder if salt accumulation is the idea behind that.

[MarineCorps]

Originally Posted by Cole_Robbie

Have you tried using hydroton or lava rock in place of coir? I know it's too late now, but most dutch bucket systems I see use hydroton clay pebbles.

And now that I think of it, I have also seen nutrient products that are specifically designed for use with cocopeat. I wonder if salt accumulation is the idea behind that.

Used perlite one year but the plants looked sick after a while. I prefer the water retention of coir, which seems to be working against me this time.

[RayR]

Originally Posted by MarineCorps

Yes. Its a 2 part hydroponic solution, the details of which escape me at the moment



Hmm, that is possible. the coir was never flushed after being made as there was no irrigation in the greenhouse for till almost a month later and has had nothing but nute salt put into it.

Give up some details on the 2 part you are using.
Salts in the coir shouldn't be a problem if the coir was processed for horticultural use. You don't want to use coir that is intended for animal bedding.