Help diagnosing this

TwoTokeSmoke

TwoTokeSmoke

Active Member
Please take a look and let me know your thoughts.
Is it a nute problem or could it be bleached out from to much/intense light?

It only really seems to be the very top of the plant.
FYI jacks cleaner @ 30 days

Thanks
 

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TheTrippyHippie

TheTrippyHippie

Well-Known Member
Have you been using flowering fertilizers? Looks like it needs a little bit of potassium for those fruits. Overall a very nice looking crop my friend
 
TwoTokeSmoke

TwoTokeSmoke

Active Member
I am running all organic with supersoil, I have top dressed with jamaican bat quano and worm castings.
And thanks, she should finish up pretty nice but I've never had one look like this with the light yellowing on the top.
 
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churchhaze

Well-Known Member
Too much calcium or not enough magnesium. (calcium antagonizes magnesium)

In either case, epsom salts should do it.

If it doesn't do it, then it could be potassium deficiency.
 
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SheepsBlood

SheepsBlood

Well-Known Member
Hate to start a fight on this but calcium ain't gonna do crap in flower. Its too late to reverse the damage, but to maintain it, use what I said.
Don't use Epsom salt. It's mag sulf but it's for cleaning your feet. Use hydroponic grade mag sulf please.
 
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churchhaze

Well-Known Member
I never said to add calcium, I said there was probably too much calcium already in the medium, which can cause magnesium lockout.

Cannabis definitely needs calcium during flowering though. Very silly to suggest that it doesn't "do" anything. Calcium is not some additive, it's a macro nutrient (taken up in abundant quantities), in fact plants take up and use more than twice as much calcium as magnesium, during all phases of growth.
 
TheTrippyHippie

TheTrippyHippie

Well-Known Member
churchhaze said:
I never said to add calcium, I said there was probably too much calcium already in the medium, which can cause magnesium lockout.

Cannabis definitely needs calcium during flowering though. Very silly to suggest that it doesn't "do" anything. Calcium is not some additive, it's a macro nutrient (taken up in abundant quantities), in fact plants take up and use more than twice as much calcium as magnesium, during all phases of growth.
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I agree with this guy here all the way. @SheepsBlood has shown up in my alerts and in each of his posts he is always saying cal/mag def. I believe there is a lockout as well not trying to jump out at your throat but there some evaluating to be done before giving proper advice to these growers
 
TwoTokeSmoke

TwoTokeSmoke

Active Member
What is puzzling me on this, is that my soil is the same as I always use, conditions are all the same and I am very familiar with this strain as I have been growing it for awhile now and this is the only one showing this symptom.
 
TwoTokeSmoke

TwoTokeSmoke

Active Member
Thanks guys, I raised my light up some and the damage has stopped.
I still have some time left to go as Jacks Cleaner is sativa dominate so I hope I have averted further damage and she will finish up nice.
 
SheepsBlood

SheepsBlood

Well-Known Member
TheTrippyHippie said:
I agree with this guy here all the way. @SheepsBlood has shown up in my alerts and in each of his posts he is always saying cal/mag def. I believe there is a lockout as well not trying to jump out at your throat but there some evaluating to be done before giving proper advice to these growers
Click to expand...
That's because it's one of the #1 failures of people's grows. Don't belive me, I don't care.
 
SheepsBlood

SheepsBlood

Well-Known Member
churchhaze said:
I never said to add calcium, I said there was probably too much calcium already in the medium, which can cause magnesium lockout.

Cannabis definitely needs calcium during flowering though. Very silly to suggest that it doesn't "do" anything. Calcium is not some additive, it's a macro nutrient (taken up in abundant quantities), in fact plants take up and use more than twice as much calcium as magnesium, during all phases of growth.
Click to expand...

2 – Cal-Mag (Calcium – Magnesium)
As the name suggests, Cal-Mag contains calcium and magnesium, along with nitrogen, phosphorus and potassium, so be careful when considering this control method. Do not use Cal-Mag during the flowering stage or the flowers will receive too much nitrogen. This treatment should be applied during the vegetative stage. Cannabis roots absorb calcium and magnesium in a proper pH level (6.5). If the pH is off, calcium deficiency can result in the forming of dead spots in the leaves, then crinkling or spotting. Follow instructions and don’t over-apply or you can end up raising the essential nutrient levels too high. (http://www.theweedblog.com/21-tips-to-solve-nutrients-deficiencies-in-marijuana-plants/)


Application of manganese sulfate decreases number of leaves and increases dry weight of shoots, number of flowers and inflorescence length (http://www.researchgate.net/publication/228490105_Interaction_of_Foliar_Application_of_Paclobutrazol_and_Manganese_Sulfate_on_Vegetative_and_Reproductive_Growth_of_Strawberry_cv._Paros/links/542d83af0cf27e39fa9436d4/images/1.png)

Again, Back OFF ChurchHaze. Do some research before posting. End of debate
 
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churchhaze

Well-Known Member
cal-mag+ is a waste of money. It's just watered down calcium nitrate, magnesium nitrate, and chelated iron.

I have sandwich bags of solid calcium nitrate, magnesium sulfate, and iron sulfate. I don't waste my money on overpriced watered down garbage.

Also, cal-mag+ does not contain phosphorous or potassium. Please just cut your losses and stop..

SheepsBlood said:
2 – Cal-Mag (Calcium – Magnesium)
As the name suggests, Cal-Mag contains calcium and magnesium, along with nitrogen, phosphorus and potassium, so be careful when considering this control method. Do not use Cal-Mag during the flowering stage or the flowers will receive too much nitrogen. This treatment should be applied during the vegetative stage. Cannabis roots absorb calcium and magnesium in a proper pH level (6.5). If the pH is off, calcium deficiency can result in the forming of dead spots in the leaves, then crinkling or spotting. Follow instructions and don’t over-apply or you can end up raising the essential nutrient levels too high. (http://www.theweedblog.com/21-tips-to-solve-nutrients-deficiencies-in-marijuana-plants/)


Application of manganese sulfate decreases number of leaves and increases dry weight of shoots, number of flowers and inflorescence length (http://www.researchgate.net/publication/228490105_Interaction_of_Foliar_Application_of_Paclobutrazol_and_Manganese_Sulfate_on_Vegetative_and_Reproductive_Growth_of_Strawberry_cv._Paros/links/542d83af0cf27e39fa9436d4/images/1.png)

Again, Back OFF ChurchHaze. Do some research before posting. End of debate
Click to expand...
 
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churchhaze

Well-Known Member
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