Need help with an unknown Nute Def. (possibly manganese)

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LifeIsGrowing

Member

• Nov 26, 2016

• #1

Sooooo this is kinda an odd one for me personally - it's something I've never seen before and can't seem to lock down what nutrient deficiency is causing this problem. For the most part everything is growing just fine, just has this weird yellowing between the veins starting from the petiole moving outward but the outsides and veins are remaining green. It's on the newest growth and thus far hasn't begun migrating to old growth.

Pretty sure it's a manganese deficiency but I've never seen one and there's not very many good pictures online. It's the only plant outta 40 that has this issue, soooo kinda confused. (And yes I do realize that there's some purpling going on the stems - doubt it's related - this strain always has purple petioles)

Lemme know what ya think
- Life

 

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CaliVeganix

New member

• Nov 27, 2016

• #2

Is it soil? Coco? It's starting on the inside so I agree it's some kind of micro def. From what I understand though maganese and other micros are only needed in trace amounts (usually probided by canna friendly nutes) and deficiencies are usually attributed to high PH. If it's hydro double check your res, if soil check the runoff (not 100% accurate but a good reference point). If those are correct, recalibrate ph pen for good measure, and add a TAD of some micros or Epsom salts in a plain water feed (supposedly micros in high concentrations interact negatively with other nutes)....I've only been doing this a couple years so take it with a grain of salt but hope this helps

 

jedi5891

Active member

• Nov 28, 2016

• #3

It's very hard to tell from those picture I'm afraid.

 

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CaliVeganix

New member

• Nov 28, 2016

• #4

I mean if you zoom in you could see what he's talking about. It's slightly a different shade of green on the inner portion of the leaves. Telltale micro def...which one is harder to say because their all so damn similar and its on only one plant lol. Whatever it is though it definitely doesn't look bad at all...maybe that one plants ph is off? possibly slight light burn since it's only that one plant? Idk looks too evenly spread on the leaf to be burn. Wierd. Keep us updated. Definitely interesting.

 

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LifeIsGrowing

Member

• Nov 28, 2016

• #5

They're currently in ProMix and being fed with Vegamatrix (which has been working wonderfully for everything else in the room). It's definitely really odd.. I'm gonna get some pH calibration solution in the next day or two and see if it's a problem with the pH meter itself cause it's definitely within range (of whatever it's currently reading at anyways) and it's definitely not burn cause the tips aren't burnt at all. Guess I'll post back whenever I get it figured out or unless anyone else has any ideas on it.

-Life

 

Mikell

Dipshit Know-Nothing

ICMag Donor

Veteran

• Nov 28, 2016

• #6

Clone or seed?

I've seen some funky ass growth from seed pops.

 

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Slipnot

Member

• Nov 28, 2016

• #7

Looks like early stages of sulfur deficiency give them some tap water ?? you been using RO ???

 

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LifeIsGrowing

Member

• Dec 8, 2016

• #8

Mikell said:

Clone or seed?

I've seen some funky ass growth from seed pops.

Click to expand...

Clone - ran a bunch of times over the years so it shouldn't be that.

Update otherwise:
Went and got pH calibration solution and my pH meter musta been thrown off by at least .5 or so, don't know how that happened but things seem to be working themselves out now. Must just been more sensitive than some of the other varieties to the pH swing that musta occurred.

Sooo not completely outta the woods yet, but looking much better.

-Life

 

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EastCoast710

Active member

• Dec 8, 2016

• #9

was going to say.. that's your ph . had that happen with a bunch of gg4 s1's when my ph pen failed

 

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LifeIsGrowing

Member

• Dec 9, 2016

• #10

EastCoast710 said:

was going to say.. that's your ph . had that happen with a bunch of gg4 s1's when my ph pen failed

Click to expand...

How long did it take for them to recover?? Or did it only recover on the new growth?? Some of mine seem like they're reverse the damage and others just seem like new growth looks better.