Please help me out

Dryxi

Well-Known Member
I have a deficiency showing up on one of my plants and not sure what it is or how to fix it. Prefer organically.

Soil grow, amended soil in a 4x4 bed. Plants are at day 7 of flower. Here's a pic of the affected leaves
 

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Dryxi

Well-Known Member
Another picture from yesterday that shows more of the plants. You can see the leaves I posted above on the back right plant, towards the middle of the bed.

You can see the issue popping up on the plant next to it as well in the back.

@hotrodharley I always really appreciate your advice.
 

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Dryxi

Well-Known Member
Any advice guys? I am thinking along the lines of an iron issue or mag?

I read that I can top dress some really horse manure can help with iron if that's the issue but I want to be a little more sure before I start top dressing a bunch of stuff. I have some aged horse manure I've slowly been using for my worm bins (about 2 years old manure) as well as many other amendments on hand (such as kelp meal, alfalfa, malted barely, etc.) but I dont have any liquid amendments.
 

Blitz35

Well-Known Member
Im not seeing a mag issue, it seems to be possibly iron or sulfur lacking. Top growth is yellowing uniformly from stem outwards. If you have excess nitrogen, that would compete with sulfur's uptake. Im not into pure organics, so it's hard to help with fixing it, but that's my thought, sulfur and/or iron lacking.
 

Jimdamick

Well-Known Member
Soil grow, amended soil in a 4x4 bed.
What kind of soil, like bagged, did you make it, amended with what, in a 4x4 bed of what depth, what do you feed with, how many plants, do they all have the same issues?
Need more info
 

Dryxi

Well-Known Member
What kind of soil, like bagged, did you make it, amended with what, in a 4x4 bed of what depth, what do you feed with, how many plants, do they all have the same issues?
Need more info
It was buildasoil soil. I dont feed them anything except a tea every once in a while (like maybe 1 every two or three weeks). Just the 4 plants and they aren't all showing the same thing.

Temps are about 68-70 low at lights off and 77ish with lights on.
Humidity stays stable at 45-50%.

It is a fabric bed on top of a 4x4 flood tray filled with grow stones and water (basically a SIP), so I do not water them often from the top.
 

Dryxi

Well-Known Member
Im not seeing a mag issue, it seems to be possibly iron or sulfur lacking. Top growth is yellowing uniformly from stem outwards. If you have excess nitrogen, that would compete with sulfur's uptake. Im not into pure organics, so it's hard to help with fixing it, but that's my thought, sulfur and/or iron lacking.
I could have excess nitrogen since I haven't done a soil test and really cant say. I dont think the excess nitrogen is super high but could be too high either way. I would like to go organic but honestly I really want these plants to finish and am willing to do what has to be done lol

Iron is what I was thinking initially but I'm new
 
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Jimdamick

Well-Known Member
It was buildasoil soil. I dont feed them anything except a tea every once in a while (like maybe 1 every two or three weeks). Just the 4 plants and they aren't all showing the same thing.

Temps are about 68-70 low at lights off and 77ish with lights on.
Humidity stays stable at 45-50%.

It is a fabric bed on top of a 4x4 flood tray filled with grow stones and water (basically a SIP), so I do not water them often from the top.
Well, you better start to feed, especially at the 1st week of Flower.
What is the depth of your tray?
Because all your plants are not showing the same issue, it is probably not a def (hard to happen in soil)
Start to feed your plants some food, like kelp, bat shit, or any organic shit you can find (I would buy some Flora Bloom personally, I have no time for organics)
I would like even more info, like what lights, strains growing and I want to get this right, you have your 4 plants growing in a flood tray?
What is the composition of your medium?
I'm confused.
 

Dryxi

Well-Known Member
Well, you better start to feed, especially at the 1st week of Flower.
What is the depth of your tray?
Because all your plants are not showing the same issue, it is probably not a def (hard to happen in soil)
Start to feed your plants some food, like kelp, bat shit, or any organic shit you can find (I would buy some Flora Bloom personally, I have no time for organics)
I would like even more info, like what lights, strains growing and I want to get this right, you have your 4 plants growing in a flood tray?
What is the composition of your medium?
I'm confused.

Base Soil:

  • 2 CuFt Sphagnum moss
  • 1 CuFt Pumice lava rock
  • 1 CuFt Modern Beginning charged Biochar
  • 1 CuFt Rice Hulls
  • 2 CuFt Humus composed of 1/3 Compost(Oly Mountain or Malibu Compost) and 2/3 EWC, and
  • If on hand throw in a few handfuls some probiotic herbs – comfrey, nettle, dandelion, etc..
Nutrients included in the soil:

  • (Per cu.Ft of Base Soil)
  • 1/2 cup organic Neem meal
  • 1/2 cup organic Kelp meal
  • 1/2 cup organic Crustacean meal
  • 1/2 cup organic insect frass
  • 1/3 cup Gro-Kashi
  • 1/3 cup Karanja Meal
  • 1/4 cup of fish bone meal
  • 1/16th cup of Modern Microbes
  • 3 cups of some Rock/Mineral Mix
  • (Rock/Mineral Mix)
  • 2 part Oyster Shell Flour
  • 2 part Gypsum
  • 1 parts Glacial Rock Dust
  • 1 part Basalt
  • 1 part Calcium Bentonite

It is 4 plants in a 4x4 fabric pot, sitting on top of a 4x4 flood tray that is filled with grow stones and water. The fabric pot sits on the rocks and water, watering from the bottom in a fashion like a SIP. It is a 12" floodtray, with a 12" tall fabric pot on top of it.

Strains: 2x Silver Mountain (Bodhi) 2x Strawberry-banana (Seedsman)
Lights: 2x 315w CMH

I did a top dress earlier in veg of Kelp Meal, Alfalfa meal, and Insect Frass. I can do another top dress of wormcastings and something again with no problem.
 

Bernie420

Well-Known Member
Any advice guys? I am thinking along the lines of an iron issue or mag?

I read that I can top dress some really horse manure can help with iron if that's the issue but I want to be a little more sure before I start top dressing a bunch of stuff. I have some aged horse manure I've slowly been using for my worm bins (about 2 years old manure) as well as many other amendments on hand (such as kelp meal, alfalfa, malted barely, etc.) but I dont have any liquid amendments.
Which take time and microbes to break it down to become available to the plant.
 

Bernie420

Well-Known Member
Base Soil:

  • 2 CuFt Sphagnum moss
  • 1 CuFt Pumice lava rock
  • 1 CuFt Modern Beginning charged Biochar
  • 1 CuFt Rice Hulls
  • 2 CuFt Humus composed of 1/3 Compost(Oly Mountain or Malibu Compost) and 2/3 EWC, and
  • If on hand throw in a few handfuls some probiotic herbs – comfrey, nettle, dandelion, etc..
Nutrients included in the soil:

  • (Per cu.Ft of Base Soil)
  • 1/2 cup organic Neem meal
  • 1/2 cup organic Kelp meal
  • 1/2 cup organic Crustacean meal
  • 1/2 cup organic insect frass
  • 1/3 cup Gro-Kashi
  • 1/3 cup Karanja Meal
  • 1/4 cup of fish bone meal
  • 1/16th cup of Modern Microbes
  • 3 cups of some Rock/Mineral Mix
  • (Rock/Mineral Mix)
  • 2 part Oyster Shell Flour
  • 2 part Gypsum
  • 1 parts Glacial Rock Dust
  • 1 part Basalt
  • 1 part Calcium Bentonite
It is 4 plants in a 4x4 fabric pot, sitting on top of a 4x4 flood tray that is filled with grow stones and water. The fabric pot sits on the rocks and water, watering from the bottom in a fashion like a SIP. It is a 12" floodtray, with a 12" tall fabric pot on top of it.

Strains: 2x Silver Mountain (Bodhi) 2x Strawberry-banana (Seedsman)
Lights: 2x 315w CMH

I did a top dress earlier in veg of Kelp Meal, Alfalfa meal, and Insect Frass. I can do another top dress of wormcastings and something again with no problem.
With a resume like that I would get a microbe product and use it a little bit once a week.

Top feeding once a week to get the top part of the roots wet isnt a bad thing.
 

Bernie420

Well-Known Member
Another picture from yesterday that shows more of the plants. You can see the leaves I posted above on the back right plant, towards the middle of the bed.

You can see the issue popping up on the plant next to it as well in the back.

@hotrodharley I always really appreciate your advice.
I dont see anything wrong here to warrant doing anything to it. Other then adding microbes imo.
 
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