plant problems. leaves turning brown/rust

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Árboles verdes

Well-Known Member
Hey guys, i need help with my 2 plants. Everyone has different ideas and im lost is this phosphorus def? But my other plants symptoms are different. I feel like giving up man. Top 3 is one plant and the other 3 is the other one. I belive its an indica and a sativa.
 

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TommyDuhCat

TommyDuhCat

Well-Known Member
I'll be the one to say it this time, you're Going to have to give not info. Medium, water (and ph preferably), nutrients, lighting etc. Could be a few things.

If you haven't seen this, it can be a helpful start to diagnosing problems.

Deficiency.jpg 303_0-02249700-1433803524_cannabisposter4000.jpg
 
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Árboles verdes

Well-Known Member
Im using fox farm ocean soil and dyna gro nutes. My lights i was using 2 23watt 5000K, 1 60watt 5500K and 1 42watt 2700K and 2 32watt 2700K and 1 more 23watt 2700K. My temp is 73-76 and at night is 69 My humidity is from 50 to 60 but my humidifier dosent have a filter and some white stuff from what i think its the water is flying everywhere, i dont know if its really bad. Ive been on top of my ph and i stoped giving nutes a while back because i belive it started as a over watering problem, then i got N toxicity or atleast thats what it looked like. Then it looked like K.P deficiency. The thing is that its shown different symptoms every time,
 
orbo

orbo

Well-Known Member
Tap water? Ro? Have you been doing the Feed-Water-Water technique? Are you adding any Calcium or Magnesium on the water only days?
 
orbo

orbo

Well-Known Member
polishpollack said:
don't give the dynagro with ffof soil. soil has fert already.
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Judging by plant size I'm guessing he's far enough along that he should be feeding mildly by now. Unless you recently transplanted to much larger pot. See this introduces lots of fresh soil when you upcan like that thus sometimes delaying the need to feed.
 
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Árboles verdes

Well-Known Member
I know it has fert but isnt it good for arpund 2 weeks?

Orbo- i use drinking water from the small water plants outside the stores, i check my ph . feed once a week but i did not know i had to use calcium and magnesium on water only days
 
orbo

orbo

Well-Known Member
Oh....yeah man. She's looking like she needs some Calcium. Look at the charts provided by Tommy and see the Ca deficiency sections.

Are you going into flower yet?
 
orbo

orbo

Well-Known Member
Árboles verdes said:
Shes already on 2nd day of flower.itsays to give it hydrated lime?
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Be careful with the lime...it'll burn shit up if not used properly. And if you're going into flower then you absolutely need Calcium and Magnesium right now.

I've never tried it and I hate suggesting something I've never tried it but I understand a crushed up Tums will net a good bit of Calcium immediately. Maybe @hotrodharley can suggest a dosage with regard to the Tums? Option 2 is eggshells in white vinegar. This will take a minimum of 2 days to prep (with the right tools, more time is better though) but it works well for Calcium. And you can use Epsom Salt for the Magnisium for this emergency fix
 
orbo

orbo

Well-Known Member
Get out of that Lime thread. Lime is best when added while you're mixing up your soil - BEFORE you let the soil cook. If you add it now its likely to add to your problems.
 
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Árboles verdes

Well-Known Member
Ok so
orbo said:
Be careful with the lime...it'll burn shit up if not used properly. And if you're going into flower then you absolutely need Calcium and Magnesium right now.

I've never tried it and I hate suggesting something I've never tried it but I understand a crushed up Tums will net a good bit of Calcium immediately. Maybe @hotrodharley can suggest a dosage with regard to the Tums? Option 2 is eggshells in white vinegar. This will take a minimum of 2 days to prep (with the right tools, more time is better though) but it works well for Calcium. And you can use Epsom Salt for the Magnisium for this emergency

Ok so the calcium, how do i do this? Crush a tums and mix it in the water? Or the egg shells just crush and leave in vinegar for a while? Can i just buy some cal mag?
Click to expand...
 
orbo

orbo

Well-Known Member
Yes, hold off on the nutes for 1 watering (or maybe even 2) and just hit it with pH'ed water and Cal/Mag. Next week about Xmas time re-evaluate and maybe a light feeding..or maybe not. Let her tell you.
 
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