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Is this a lack of something or too much of something?

Garbage_bear

Garbage_bear

Herb Hitman
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This is living soil and this second run in this soil. This batch was re-amended with build a soils craft blend. I am running a mix of stuff but the sativas(chocolate Thai) have this yellowing thing going on. Do you think k it is too much or a lack of nutrients? This is my weakness, diagnosing these plant problems….
 

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I’ve seen magnesium deficiency do that to young vegging plants.
I’ve also seen iron deficiency do this but they get really white right in the middle growth points. I believe the iron issue was caused by lack of dryout in the root zone.
 
Garbage_bear said:
This is living soil and this second run in this soil. This batch was re-amended with build a soils craft blend. I am running a mix of stuff but the sativas(chocolate Thai) have this yellowing thing going on. Do you think k it is too much or a lack of nutrients? This is my weakness, diagnosing these plant problems….
Click to expand...
Deficiency. Generally underfed.

Sacrificing it's lower & older leafs to fuel new growth.

These plants need a low n-PK ratio dose with some magnesium sulfate sprinkled In lol


What do you have?
 
Last edited:
Observer said:
Deficiency. Generally underfed.

Sacrificing it's lower & older leafs to fuel new growth.

These plants need a low n-PK ratio dose with some magnesium sulfate sprinkled In lol


What do you have?
Click to expand...
Ok good to know! First time growing some landrace sativa. I am just doing a small test run to see if it would be worth growing in a light dep set up in the greenhouse. Hungry plants when they have four months of flower I guess.

I have some build a soil products and what not. Mycorrhiza root stuff, gypsum, Craft blend, Amino-Calcium boost, unsulfured molasses, compost and some worm castings. I don’t have any like magnesium specific stuff
 
Garbage_bear said:
Ok good to know! First time growing some landrace sativa. I am just doing a small test run to see if it would be worth growing in a light dep set up in the greenhouse. Hungry plants when they have four months of flower I guess.

I have some build a soil products and what not. Mycorrhiza root stuff, gypsum, Craft blend, Amino-Calcium boost, unsulfured molasses, compost and some worm castings. I don’t have any like magnesium specific stuff
Click to expand...
Epsom salt?

You can try amending but I'm not sure how long it'll take for the inputs to become bioavailable for the plant to uptake.
 
Garbage_bear said:
This is living soil and this second run in this soil. This batch was re-amended with build a soils craft blend. I am running a mix of stuff but the sativas(chocolate Thai) have this yellowing thing going on. Do you think k it is too much or a lack of nutrients? This is my weakness, diagnosing these plant problems….
Click to expand...
Hey, I believe mag as well but its not something you can fix now. I've heard foliar spraying is the fastest way to get mag into them but I can't confirmthat. I believe this starts in veg and show the deficiency around 3rd week of flower. Since I started adding 1tsp Epsom salts through veg up to 3rd week in flower that yellowing has stopped. I switch to cal/mag at 3rd week.
 
Pipecarver said:
Hey, I believe mag as well but its not something you can fix now. I've heard foliar spraying is the fastest way to get mag into them but I can't confirmthat. I believe this starts in veg and show the deficiency around 3rd week of flower. Since I started adding 1tsp Epsom salts through veg up to 3rd week in flower that yellowing has stopped. I switch to cal/mag at 3rd week.
Click to expand...
Foliar can absorb the nutrients within minutes
 
Garbage_bear said:
This is living soil and this second run in this soil. This batch was re-amended with build a soils craft blend. I am running a mix of stuff but the sativas(chocolate Thai) have this yellowing thing going on. Do you think k it is too much or a lack of nutrients? This is my weakness, diagnosing these plant problems…
Click to expand...
In the future grab yourself some mussels, if you dont like them ill happily eat them for you and give you back the shells lmaop .... Pillow case or similar size cloth bag,,pulverize the shells as much as ya can, cast iron skillet and or frying pan the shells (i usually only run em on the skillet for 10-15 mins till they seem super dry) Add those to your no till beds! I also used to use rinsed pistachio shells as a slow release, help with acidic areas........im full of useless knowledge lmaop
 
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