Possible calcium deficiency

Ry16

Active Member
Hey

Today ive noticed some brown spots on the lower leaves of 1 of my plants.

Ive looked through the possible causes and it looks like a calcium deficiency but I can't be certain.

The new growth on the top is fine its just a few of the lower leaves.

Has anyone got any advice on what I should do?

Any feedback would be much appreciated.

Here are a few pics:
 

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Jubilant

Well-Known Member
Pictures would be a lot more helpful without the lights on here. Kind of hard to see. Also pictures of the whole plant. Not trying to be rude simply helpful, there are a lot of knowledgeable people here on the forum but unless you give enough information most won't bother to post. Give us a little info on your grow, what type of lights, temps, humidity, what kind of soil, what kind of nutes, age of plants, what kind of water do you use, ect.. If you are nervous of flicking the lights on your babies wait till the flick off them snap a couple pictures with the flash on.

EDIT: Also how often do you water, and when is the last time you watered. What do you PH your water to?
 

Ry16

Active Member
Pictures would be a lot more helpful without the lights on here. Kind of hard to see. Also pictures of the whole plant. Not trying to be rude simply helpful, there are a lot of knowledgeable people here on the forum but unless you give enough information most won't bother to post. Give us a little info on your grow, what type of lights, temps, humidity, what kind of soil, what kind of nutes, age of plants, what kind of water do you use, ect.. If you are nervous of flicking the lights on your babies wait till the flick off them snap a couple pictures with the flash on.

EDIT: Also how often do you water, and when is the last time you watered. What do you PH your water to?
That's cool I'm using a 600w dual spectrum hps with dimmable ballast.

I'm currently growing auto flowers so I have set the timers to a 18/6 light schedule.

I have a 6 inch vortex carbon filter with a 6 inch inline fan extracting scents and heat.

I'm using biobizz lightmix in 11l pots and have purchased biobizz root/grow/bloom nutes and a big jar of molassus.

I started with 1/8 root per food for first 2 weeks and changed to 1/4 root 1/8 grow between week 2 and 3 which they loved so I've gradually increased it to the recommended dosage of 2 ml per litre and have ceased the root nutes.

Its now week 4 and I'm using 2 ml grow and 1 tablespoon of molassus per litre.

I LSTed a little late but it seems like they recovered fast.

I took it out and snapped some more pics.

Any advise would be appreciated :)
 

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Jubilant

Well-Known Member
That's cool I'm using a 600w dual spectrum hps with dimmable ballast.

I'm currently growing auto flowers so I have set the timers to a 18/6 light schedule.

I have a 6 inch vortex carbon filter with a 6 inch inline fan extracting scents and heat.

I'm using biobizz lightmix in 11l pots and have purchased biobizz root/grow/bloom nutes and a big jar of molassus.

I started with 1/8 root per food for first 2 weeks and changed to 1/4 root 1/8 grow between week 2 and 3 which they loved so I've gradually increased it to the recommended dosage of 2 ml per litre and have ceased the root nutes.

Its now week 4 and I'm using 2 ml grow and 1 tablespoon of molassus per litre.

I LSTed a little late but it seems like they recovered fast.

I took it out and snapped some more pics.

Any advise would be appreciated :)

Im assuming you don't PH your water as you did not state what it normally is. If that is the case you probably found your issue.

Also those drooping leaves make it look a bit overwatered
 

Ry16

Active Member
Im assuming you don't PH your water as you did not state what it normally is. If that is the case you probably found your issue.

Also those drooping leaves make it look a bit overwatered
Yeah I pH the nutrient brew to 6.5 and I water every 4 days or when it feels light and I can put my finger in up until the first knuckle and can't feel any moisture.

I've looked around and think it could be just the first set of leaved dying off because it is a autoflowering strain and its only affecting the first set.
 

Jubilant

Well-Known Member
Yeah I pH the nutrient brew to 6.5 and I water every 4 days or when it feels light and I can put my finger in up until the first knuckle and can't feel any moisture.

I've looked around and think it could be just the first set of leaved dying off because it is a autoflowering strain and its only affecting the first set.
Awesome friend! I'm glad that it isn't spreading :-)

You should keep us updated with pics I would love to see how these babies turn out.:weed:
 

UncleBuck

Well-Known Member
Its a autoflowering strain that has 2 1/2 weeks left in the fastest growth stage.

Your are seriously clueless lol
i wouldn't grow an autoflower. they are a type of plant known as ruderalis, AKA ditchweed. just my honest opinion.
 

Roger A. Shrubber

Well-Known Member
i think it might be a little sulfur def. and a little P def., up the bloom nutes a little and give em a dose of epsom salts and see if it helps
 
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