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Nutrient deficiencies and toxicities in Cannabis


uBercaMeL

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10 minutes ago, Shumroom said:

Could be water splashes :)

 

Do you have a diary on the go? 

 

Atb 

 

 

:yinyang:

Ah right, hopefully that’s the case!

Yeah I am as it goes - only happened after first feed so makes sense.

 

Coco and compost mix with perlite, 3gall 

 

popped 6th April 

Week 1

Water

 

Week 2 14th April

Water

 

Week 3  21st April

Water

 

Veg

Week 1 Sunday 25th April  - FEED

Transplanted to 3 gallon, added 1/2tsp microrhizzah to roots + 1tbs eco thrive, .5ml Grow, 1ml Calmag and feed

 

Going easy as it’s early doors

 

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I'd highly(no pun intended) recommend that you take the time to stick the details of your grow up into the diary section of this website,

you'll get lots of help along the way :) 

 

 

What sort of ratios of coco:compost:perlite is your mix?

 

How's your water supply hard/soft,

all Calcium and no Mag or something else?

 

Photoperiod or auto?

 

Environment:

min/max temps lights on,

lights off?

 

RH min/max?

 

Root temp?

 

Atb

 

 

:yinyang:

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26 minutes ago, Shumroom said:

I'd highly(no pun intended) recommend that you take the time to stick the details of your grow up into the diary section of this website,

you'll get lots of help along the way :) 

 

 

What sort of ratios of coco:compost:perlite is your mix?

 

How's your water supply hard/soft,

all Calcium and no Mag or something else?

 

Photoperiod or auto?

 

Environment:

min/max temps lights on,

lights off?

 

RH min/max?

 

Root temp?

 

Atb

 

 

:yinyang:

Thanks Atb, just updated my grow info, might help. I'm doing this as an experiment on one plant so not using a tent or checking humidity/temps  (I know my yields might be not great but as I say, at least I'll now what I can achieve)...plant seems fine bar that brown spot issue but appreciate the info,

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  • 1 year later...

large.20230830_035624.jpg

Anyone know if this is a common deficiency? First time I've had it look like this, very dark marks of the edges.

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  • 2 weeks later...

large.IMG_2653.jpeglarge.IMG_2652.jpegHi guys,what are your thoughts on this? I don’t really have any specifics other than it’s in compost with pearlite,with a 100w grow light and she’s been fed 2 times a week with bloom and anything else is just water.any advice would be gratefully welcome 

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The plant has been taking nutrients from these leaves,

but the plant might be nearly ready,

I can’t quite tell from the photos.

 

How long has the plant been flowering?

 

Can you please also upload a full plant photo or 2? :)

 

Atb

 

 

 

:yinyang:

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Hi,I would guess it’s been flowering for about 8 weeks( need to keep a diary next time)also it’s only tiny as we had no sun when it was growing,I’ve now invested in a light but was too late for the growing stage.I will get a pic tomorrow.thank you.

Edited by Gandyman
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  • 6 months later...

Amazing post.

If I can I would like to share also this image where at a glance there are excess and deficiency compared.

large.da1d72dd707569e32cccd15cec438730e60bd8be.jpeg.54aff77f773b9622490736df0f2fec6f.jpeg

Although J.Cervantes

Edited by Amnesialocal
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