Micro nutrients

brooksville · April 21, 2019

We have a few tomatoes plants that are showing signs of chlorosis. From what I can tell it looks like an iron deficiency, we are using TTF weekly, and have applied it 2 times so far. We took a soil sample and amended the garden per the sample.

My question is do we try to correct the soil or wait to see if the TTF will be enough?

It is limited to only a few plants and is spotty in the garden. I also wonder if the cool soil is prevents proper nutrient uptake.

Thanks in advance!

Nan_PA_6b · April 21, 2019

As you point out, chlorosis could be caused by mineral deficiency or something affecting the uptake of minerals. For example, I've had chlorosis due to fungus gnats, who damage roots.

If you want to try to correct the deficiency, or believe that a higher concentration of minerals would make it easier for your plant to uptake, I'd try greensand. (That's all one word.)

"Greensand contains potassium, iron, magnesium, calcium and phosphorus plus as many as 30 other trace minerals. Greensand was deposited millions of years ago when the area was still under water."

I bought this: https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

Problems with uptake could have a lot of reasons. Change whatever stressors you can for your plant, such as upping the temp, moving to more light, etc.

If your plant is also not using enough water (soil stays wet), you've got a big problem with the roots. (Myco Blast with or without Gnatrol.)

If the fertilizer is going to work, I guess I'd expect to see the leaves turning a little greener in maybe 3 days?

Cole_Robbie · April 21, 2019

If it has been cold and wet, you might have rotten roots, which can show as a nutrient deficiency. If it is the worst in the lowest spots in your garden, that might be a tip off. Ridges or raised beds help with drainage. Soils with a higher organic matter and humate content do better regulating water as well.

brooksville · April 23, 2019

The extension diagnosed the plants with glyphosate damage.

Chapinz8 · April 23, 2019

Quote:

Originally Posted by brooksville

The extension diagnosed the plants with glyphosate damage.

Several years ago I applied a small amount of glyphosate very, very carefully on a calm day about 6 feet from my plants. Three tomato tops turned this beautiful light yellow next week. They did recover eventually.

brooksville · April 23, 2019

Here’s a look at what the extension said was glyphosate damage. They also said the plat would die.

Labradors2 · April 23, 2019

Doesn't look that bad, does it? I'd be inclined to leave the plant and cross my fingers.

Linda

brooksville · April 23, 2019

No it doesn’t. I’ll keep tabs on it and keep y’all updated.
It starting to look better today too.

b54red · April 25, 2019

Unless it got a significant amount of glycophosphate on the leaves it will probably be fine. It really doesn’t look like ordinary chlorisis due to iron deficiency.

Bill

b54red · April 25, 2019

If it is iron deficiency then the best way to fix it is with a foliage spray.

Bill

April 21, 2019	#1
brooksville Tomatovillian™ Join Date: May 2014 Location: South Georgia Zone 8a Posts: 179	Micro nutrients We have a few tomatoes plants that are showing signs of chlorosis. From what I can tell it looks like an iron deficiency, we are using TTF weekly, and have applied it 2 times so far. We took a soil sample and amended the garden per the sample. My question is do we try to correct the soil or wait to see if the TTF will be enough? It is limited to only a few plants and is spotty in the garden. I also wonder if the cool soil is prevents proper nutrient uptake. Thanks in advance!

April 21, 2019	#2
Nan_PA_6b Tomatovillian™ Join Date: Dec 2016 Location: Pittsburgh, PA Posts: 3,194	As you point out, chlorosis could be caused by mineral deficiency or something affecting the uptake of minerals. For example, I've had chlorosis due to fungus gnats, who damage roots. If you want to try to correct the deficiency, or believe that a higher concentration of minerals would make it easier for your plant to uptake, I'd try greensand. (That's all one word.) "Greensand contains potassium, iron, magnesium, calcium and phosphorus plus as many as 30 other trace minerals. Greensand was deposited millions of years ago when the area was still under water." I bought this: https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1 Problems with uptake could have a lot of reasons. Change whatever stressors you can for your plant, such as upping the temp, moving to more light, etc. If your plant is also not using enough water (soil stays wet), you've got a big problem with the roots. (Myco Blast with or without Gnatrol.) If the fertilizer is going to work, I guess I'd expect to see the leaves turning a little greener in maybe 3 days?

April 21, 2019	#3
Cole_Robbie Tomatovillian™ Join Date: Jun 2012 Location: Illinois, zone 6 Posts: 8,407	If it has been cold and wet, you might have rotten roots, which can show as a nutrient deficiency. If it is the worst in the lowest spots in your garden, that might be a tip off. Ridges or raised beds help with drainage. Soils with a higher organic matter and humate content do better regulating water as well.

April 23, 2019	#4
brooksville Tomatovillian™ Join Date: May 2014 Location: South Georgia Zone 8a Posts: 179	The extension diagnosed the plants with glyphosate damage.

April 23, 2019	#7
Labradors2 Tomatovillian™ Join Date: Jul 2013 Location: Ontario Posts: 3,886	Doesn't look that bad, does it? I'd be inclined to leave the plant and cross my fingers. Linda

April 25, 2019	#9
b54red Tomatovillian™ Join Date: Sep 2009 Location: Alabama Posts: 7,068	Unless it got a significant amount of glycophosphate on the leaves it will probably be fine. It really doesn’t look like ordinary chlorisis due to iron deficiency. Bill