Frank Nitty
Well-Known Member
Growing in autopots,MC nutes... Why do my leaves have this color???
Why???
- Thread starter Frank Nitty
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Frank Nitty
Well-Known Member
I should up the dosage of MC that they get then??? Probably... Let's find out...
lukedaduke
Member
calcium
diggs99
Well-Known Member
you should wait until someone smarter comes along first lol
diggs99
Well-Known Member
like luke, he says calcium, he mighta seen it before and is familiar?
I need clearer pictures but looks like Nitrogen deficiency to me.
That's not solely a Ca deficiency. It looks like that plant is starved so it could also be Ca and other nutrients as well. Again I'd need a clearer picture.
lukedaduke
Member
Here is my reasoning:
It is for sure an immobile nutrient deficiency as it is happening at the top of the plant while the lower leaves look more or less normal, (or at least less affected). So big three immobile nutrient deficiencies I typically see are iron, calcium and sulfur (could make a case for boron, but I have only seen that when I am hammering the plant with high levels over Ca and lower levels of N too early into flower, and that one is obvious because at this stage flowers would be aborting).
So with that in mind, its not iron, because I know what iron chlorosis looks like. I was once a very shitty propagation grower haha, too much mist on cuttings and you see it everywhere, i got better... eventually lol.
It could be sulfur, but typically sulfur (technically a secondary macro nutrient) is needed in far less quantities than Ca in a flowering cannabis plant, so kinda unlikely, but it could be happening here. like curious said, its not a great pic.
That leaves me with calcium. cannabis is a notorious hog for calcium and the different strains, shit even different phenos can have wildly different requirements for calcium during flower, which might explain why that plant is being affected more, but that is just a wild guess.
You could cover all your bases and add a couple of teaspoons of epsom salt and calcium nitrate to that pot just to be sure. I use sprint 330 for my chelated iron source, but thats kinda expensive. maybe someone else has a good recommendation on a chelated iron source that you could use to make extra double sure you nailed the problem, though i really doubt its iron.
hope this helps, and good luck!
P.S. other than the yellowing the buds look pretty good!
It is for sure an immobile nutrient deficiency as it is happening at the top of the plant while the lower leaves look more or less normal, (or at least less affected). So big three immobile nutrient deficiencies I typically see are iron, calcium and sulfur (could make a case for boron, but I have only seen that when I am hammering the plant with high levels over Ca and lower levels of N too early into flower, and that one is obvious because at this stage flowers would be aborting).
So with that in mind, its not iron, because I know what iron chlorosis looks like. I was once a very shitty propagation grower haha, too much mist on cuttings and you see it everywhere, i got better... eventually lol.
It could be sulfur, but typically sulfur (technically a secondary macro nutrient) is needed in far less quantities than Ca in a flowering cannabis plant, so kinda unlikely, but it could be happening here. like curious said, its not a great pic.
That leaves me with calcium. cannabis is a notorious hog for calcium and the different strains, shit even different phenos can have wildly different requirements for calcium during flower, which might explain why that plant is being affected more, but that is just a wild guess.
You could cover all your bases and add a couple of teaspoons of epsom salt and calcium nitrate to that pot just to be sure. I use sprint 330 for my chelated iron source, but thats kinda expensive. maybe someone else has a good recommendation on a chelated iron source that you could use to make extra double sure you nailed the problem, though i really doubt its iron.
hope this helps, and good luck!
P.S. other than the yellowing the buds look pretty good!
Frank Nitty
Well-Known Member
My autopots are acting real funny right now... The only plants that I'm having trouble with are the ones that are in the autopots...
Dog Star
Well-Known Member
Secondary elements deficience,Mg,Cal,S.. and a bit of N def.. you need to give them all..
if you are already feeded too much then plants perform PH swing and then comes probs with Mg,N
and S.. but if not then is for sure those first that i saying,its deficience..
Secondary elements deficience is most common def. in Cannabis plants... you have school example
of that happening if i read leafes..
Also its not Calcium def. as then your leafes will have brown spots and necrosis..
If you use chems give her some Magnesium Sulphate,some NPK where N is higher than other 2 elements..
microelements is also good to give but in very small dose,just a pinch.. and then observe what is
happening.. does they will get greener..
if you are already feeded too much then plants perform PH swing and then comes probs with Mg,N
and S.. but if not then is for sure those first that i saying,its deficience..
Secondary elements deficience is most common def. in Cannabis plants... you have school example
of that happening if i read leafes..
Also its not Calcium def. as then your leafes will have brown spots and necrosis..
If you use chems give her some Magnesium Sulphate,some NPK where N is higher than other 2 elements..
microelements is also good to give but in very small dose,just a pinch.. and then observe what is
happening.. does they will get greener..
Dog Star
Well-Known Member
Frank Nitty
Well-Known Member
That's what i intend to do... Thanks for the input!!!
Dog Star
Well-Known Member
But only bro if you didnt feed too strong in previous feedings.. am telling you it can come from 2 sides..
or its given food too low or too much and then soil saturate with nutes,PH in same time goes wild
and plant stop to absorb nutes as its in shock of some kind..
if you have too much nutes inside then those that i gived you advice will not work great as you will
add just extra nutes on those too much in soil or medium where you growin..
so plant can go even more yellow if we dont made diagnose in proper way..
Please check a PH/EC or made some small runoff that you can mesure this PH...
If everything is normal then you can add those nutes whithouth any fear and i belive it
will made your plants more healthy..
Kind regards Frank Nitty
P.S.--- GIve them only water PHd 7.0 as this is neutral,then after you catch some runoff
try to measure PH/EC values,then we will know for sure how further..
Frank Nitty
Well-Known Member
I haven't been feeding them what i should have been....
Dog Star
Well-Known Member
Then no problem,then you need to feed like i told you in first post...
i was just write those previous reply to know facts to not made things on worst,but if you say
you feed them too easy than solution is in feeding..
All the best,hope those move solve your problems Frank...
i was just write those previous reply to know facts to not made things on worst,but if you say
you feed them too easy than solution is in feeding..
All the best,hope those move solve your problems Frank...
Frank Nitty
Well-Known Member
Thanks!!! If not then I know where to come to