Help, bottom sets of leaves turning yellow.

Sidvicious1

Sidvicious1

Active Member
Hey guys I could use a little help here..my plants are bout 3weeks old and kinda slowing growth. the bottom sets of leaves are turning yellow and some have developed spots on the lower leaves that eventually take over the whole leaf and it has to be removed. I don't think I'm overwatering. every three days roughly and the soil in the pots are fairly dry on the top when i do water the plants. In general all the plants are loosing color and slowing down a little.. the grow room is bout 78º the 400watt MH is a little more than a foot away from canope, humidity is about 40.. I'm just not sure what it could be. Any help would be great guys, here are some pics, thanks...
 

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greasemonkeymann

greasemonkeymann

Well-Known Member
Sidvicious1 said:
Hey guys I could use a little help here..my plants are bout 3weeks old and kinda slowing growth. the bottom sets of leaves are turning yellow and some have developed spots on the lower leaves that eventually take over the whole leaf and it has to be removed. I don't think I'm overwatering. every three days roughly and the soil in the pots are fairly dry on the top when i do water the plants. In general all the plants are loosing color and slowing down a little.. the grow room is bout 78º the 400watt MH is a little more than a foot away from canope, humidity is about 40.. I'm just not sure what it could be. Any help would be great guys, here are some pics, thanks...
Click to expand...
i'd be concerned with that soil mix, it appears to be rather "foresty"
lots of wood products and such, those aren't a good mix for cannabis usually.
i'd transplant those (they'll need it soon anyways) into at least a half gallon or so
if you can source any fresh humus sources (compost or worm casts) i'd get some of that as a good base for your microbial diversity.
and I agree with wetdog, 1 foot isa bit close, but they don't seem to be burned, but either way that's waaaay too much lumens for the plants to use at this age, so you're wasting a lil energy, not that it matters much if you don't mind, but containers that small with a 400 w mh that close is a recipe for a reaaaaaal unforgiving dry condition.
so like a coupe hrs of that and they'll be crispy dead.
not much room for error there.
if you can find vermifire soil that's a good mix to use that's premade
 
Sidvicious1

Sidvicious1

Active Member
I wasn't sure if it was to close.. It didn't seem to burn them, that
I could tell but I'll for sure back it off some.. now that I think about it greasemonkey, the one plant that I have that's in a little bit larger pot is the one that's doing the best so yeah. Jumping up pot sizes was going to be my next move. Thanks for the info guys. I learn more every time I get on here.
 
greasemonkeymann

greasemonkeymann

Well-Known Member
Sidvicious1 said:
I wasn't sure if it was to close.. It didn't seem to burn them, that
I could tell but I'll for sure back it off some.. now that I think about it greasemonkey, the one plant that I have that's in a little bit larger pot is the one that's doing the best so yeah. Jumping up pot sizes was going to be my next move. Thanks for the info guys. I learn more every time I get on here.
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keep in mind that could be from a couple different things too, in that sort of soil it'll typically steer acidic over time, and that time it takes to do that, is accelerated if it's in a small container, but essentially the interaction of the wood material will make the soil ph lower, and with less media to buffer it it goes a lil faster, also tends to retain water a lil longer which also leads to acidic conditions.
another thing worth considering is that a larger pot typically transpires water more efficiently which will be a better growing condition for that plant too.
so basicly what i'm saying is that whatever it is that the larger container is doing it's hard to pinpoint that exactly, so don't do any drastic changes based on that conclusion.
know what I mean?
personally i'd go with a basic premade bagged soil mix and half that with promix or a seed starter mix to throw them in
 
BobCajun

BobCajun

Well-Known Member
Probably need nutrients. The easiest way to ensure they have everything they need is to water with hydroponics nutes. Or you can mess around and try to use a bunch of other stuff instead and be all organic or whatever, your choice really.
 
greasemonkeymann

greasemonkeymann

Well-Known Member
BobCajun said:
Probably need nutrients. The easiest way to ensure they have everything they need is to water with hydroponics nutes. Or you can mess around and try to use a bunch of other stuff instead and be all organic or whatever, your choice really.
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also the easiest to screw it up too, considering he is in a mix that will hold onto those nutrients longer than a hydroponic media would, and also aren't inert, which is sorta fun to try and correct...
but feeding when there is any problem tends to be the hydroponic-grower reaction to any issues.
to you easy is checking and adjusting ph all the time, checking TDS, checkin ppms, checking and adjust the cal mag. Having six types of chelated chemical cocktails to add to them

to me easy is making the soil and only watering.
I suppose it's all subjective
considering that this is IN the organic section i'd say your advice isn't the most applicable.
 
BobCajun

BobCajun

Well-Known Member
Hydroponic fertilizer just works. Soil is just a medium, not a very good one really, compared to others. What is the terrible thing you expect would happen if you used hydro nutes in soil? You would put enough through it to make sure any reactions with whatever is in the soil takes place and the results are rinsed out. You would use a pH buffered nutrient like MaxiGro, which goes to 5.5 within seconds of being added to water of any reasonable pH range. Look what the company says about it;
  • Maxigro and MaxiBloom are stand-alone, water-soluble, dry concentrated nutrients
  • Maxigro and MaxiBloom will provide superior results when used with a wide variety of crops in all hydroponic, soil or soil-based growing environments
  • Use to encourage growth of seedlings and cuttings and to stimulate rapid growth through the vegetative growth stage

    https://www.amazon.ca/General-Hydroponics-MaxiGro-Gardening-2-2-Pound/dp/B00NQANQAC
 
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MichiganMedGrower

MichiganMedGrower

Well-Known Member
greasemonkeymann said:
also the easiest to screw it up too, considering he is in a mix that will hold onto those nutrients longer than a hydroponic media would, and also aren't inert, which is sorta fun to try and correct...
but feeding when there is any problem tends to be the hydroponic-grower reaction to any issues.
to you easy is checking and adjusting ph all the time, checking TDS, checkin ppms, checking and adjust the cal mag. Having six types of chelated chemical cocktails to add to them

to me easy is making the soil and only watering.
I suppose it's all subjective
considering that this is IN the organic section i'd say your advice isn't the most applicable.
Click to expand...
I use ocean forest organic "soil" which is bark based but I add large perlite for better drainage. And I use pure Blend Pro Grow only in moderate amounts in flower to supplement the depleted soil.

I use out of the tap in adjusted well water only for 6-8 weeks in veg while transplanting up to the final pot.

Most of your post doesn't apply to a soil style grow at all. Not even a pro mix peat lite Grow needs any of your instructions.

I do agree those plants don't like that mix in the op. Or there are no nutes available in it.
 
greasemonkeymann

greasemonkeymann

Well-Known Member
MichiganMedGrower said:
I use ocean forest organic "soil" which is bark based but I add large perlite for better drainage. And I use pure Blend Pro Grow only in moderate amounts in flower to supplement the depleted soil.

I use out of the tap in adjusted well water only for 6-8 weeks in veg while transplanting up to the final pot.

Most of your post doesn't apply to a soil style grow at all. Not even a pro mix peat lite Grow needs any of your instructions.

I do agree those plants don't like that mix in the op. Or there are no nutes available in it.
Click to expand...
say what?
you quoting the wrong person my man?
 
greasemonkeymann

greasemonkeymann

Well-Known Member
BobCajun said:
Hydroponic fertilizer just works. Soil is just a medium, not a very good one really, compared to others. What is the terrible thing you expect would happen if you used hydro nutes in soil? You would put enough through it to make sure any reactions with whatever is in the soil takes place and the results are rinsed out. You would use a pH buffered nutrient like MaxiGro, which goes to 5.5 within seconds of being added to water of any reasonable pH range. Look what the company says about it;
  • Maxigro and MaxiBloom are stand-alone, water-soluble, dry concentrated nutrients
  • Maxigro and MaxiBloom will provide superior results when used with a wide variety of crops in all hydroponic, soil or soil-based growing environments
  • Use to encourage growth of seedlings and cuttings and to stimulate rapid growth through the vegetative growth stage

    https://www.amazon.ca/General-Hydroponics-MaxiGro-Gardening-2-2-Pound/dp/B00NQANQAC
Click to expand...
I seeee, so you are using the companies own website and that's your basis of your argument?
riiight, cuz they totally have your best interests in mind right?
yup, hydro companies only speak the truth?
use what you'd like to man, I have no issues with that whatsoever.
we are in the organic section, and he is having a problem with his organic soil, he is obviously seeking organic-relevant information.
so your advice is to "put enough through it"
the terrible thing i'd expect to happen is all over the place, just look in the "marijuana problems" area
that's what they all do, have a problem with your plant?
well feed it. that'll fix everything.
to be specific without knowing the problem and adding nutrients can easily exacerbate problems he may be having.
especially with an organic based soil.
you do know this right?
organics ain't the same man, much more to it than hydro, everything is working together and it's gotta be right, or the law of the minimum will hinder or halt growth results entirely.

if I went over to the hydro area and advised someone with a cal/mag def to add comfrey to his grow they'd heckle the bejesus out of me
 
DonTesla

DonTesla

Well-Known Member
Sidvicious1 said:
Hey guys I could use a little help here..my plants are bout 3weeks old and kinda slowing growth. the bottom sets of leaves are turning yellow and some have developed spots on the lower leaves that eventually take over the whole leaf and it has to be removed. I don't think I'm overwatering. every three days roughly and the soil in the pots are fairly dry on the top when i do water the plants. In general all the plants are loosing color and slowing down a little.. the grow room is bout 78º the 400watt MH is a little more than a foot away from canope, humidity is about 40.. I'm just not sure what it could be. Any help would be great guys, here are some pics, thanks...
Click to expand...
imo, need air bro.. when you up pot try going for a good 40% aeration and screen any wood chips out (leech N cause they are likely 300 or 500 C : N ratio)

and inoculate or sprinkle the root balls with myco, wearing a mask, using a mister to help them stick and catch on better. right. if you can
 
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F

fdd2blk

Well-Known Member
Sidvicious1 said:
Hey guys I could use a little help here..my plants are bout 3weeks old and kinda slowing growth. the bottom sets of leaves are turning yellow and some have developed spots on the lower leaves that eventually take over the whole leaf and it has to be removed. I don't think I'm overwatering. every three days roughly and the soil in the pots are fairly dry on the top when i do water the plants. In general all the plants are loosing color and slowing down a little.. the grow room is bout 78º the 400watt MH is a little more than a foot away from canope, humidity is about 40.. I'm just not sure what it could be. Any help would be great guys, here are some pics, thanks...
Click to expand...

These plants need nitrogen. Careful not to overdo it.
 
greasemonkeymann

greasemonkeymann

Well-Known Member
MichiganMedGrower said:
No your comment says hydroponic growers do things that I don't do with my hydroponic nutrients in my soiless mix.

I don't pour things in to fix problems and I don't add cal mag or ph anything etc.....

and in my experience hybrid styles yield the best consistent results.
Click to expand...
re-read my post man, never did I say those were needed, I said that's how hydro growers typically grow, you being in an organic soil mix using chemical nutrients is a hybrid of the two.
not sure how you understood that as being applicable to a soil grow, I was making a point n the differences between them.
and my comment towards him adding things to correct an unknown issue is a classic hydro grower move, and granted organic soil growers tend to do that too, but it's extremely common for a hydroponic grower to do that.
in fact that was his advice, to which I made the point that doing that can fuck shit up worst.
I didn't say ALL anything at all.
and you don't add cal mag because you are in a peat based mix that's already fortified with micros.
it's 100% apples to oranges.
not to mention it's not pertinent to the OP's problem
you don't grow like the OP, nor the guy I was quoting, sooo... yea..
think you got it a lil misunderstood man.
 
BobCajun

BobCajun

Well-Known Member
greasemonkeymann said:
I seeee, so you are using the companies own website and that's your basis of your argument?
riiight, cuz they totally have your best interests in mind right?
yup, hydro companies only speak the truth?
use what you'd like to man, I have no issues with that whatsoever.
we are in the organic section, and he is having a problem with his organic soil, he is obviously seeking organic-relevant information.
so your advice is to "put enough through it"
the terrible thing i'd expect to happen is all over the place, just look in the "marijuana problems" area
that's what they all do, have a problem with your plant?
well feed it. that'll fix everything.
to be specific without knowing the problem and adding nutrients can easily exacerbate problems he may be having.
especially with an organic based soil.
you do know this right?
organics ain't the same man, much more to it than hydro, everything is working together and it's gotta be right, or the law of the minimum will hinder or halt growth results entirely.

if I went over to the hydro area and advised someone with a cal/mag def to add comfrey to his grow they'd heckle the bejesus out of me
Click to expand...
Oh, organic section, didn't notice. Okay, he's screwed then. Wait I have an idea, cheat.
 
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