Question About Nutrients

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xboxjoe

xboxjoe

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hi I'm new to growing I am 3 weeks into vegging and using canna bio vega. it appears that the plants are suffering low levels of nitrogen, does anyone know weather it is safe to add sulphate of ammonia to the vega mix or should I just add it to ph'd water?
any comments appreciated
 
BuDGooDE

BuDGooDE

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hi I'm new to growing I am 3 weeks into vegging and using canna bio vega. it appears that the plants are suffering low levels of nitrogen, does anyone know weather it is safe to add sulphate of ammonia to the vega mix or should I just add it to ph'd water?
any comments appreciated
If you are feeding its probably ph issue. If ph is out of range it locks out nutes. Im only on first grow but learnt this from good peeps on here. Someone more knowledgeable will be able to help more. What medium are you growing in ?
 
ken dog

ken dog

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We will need some pictures.
Also, I would not use sulphate of ammonia... Check this out...
.

Fair use excerpt:

But a month later, the grass or plant starts to yellow again, looking for its sulfate of ammonia "fix" which it needs to support its new dependency. And because the roots were not fed along with the foliage, they cannot support the rampant top growth above them, and slowly the plant or lawn weakens and declines.
 
Mattchoopike

Mattchoopike

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How long have u been feeding? When did you notice the leaves?
 
xboxjoe

xboxjoe

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8
If you are feeding its probably ph issue. If ph is out of range it locks out nutes. Im only on first grow but learnt this from good peeps on here. Someone more knowledgeable will be able to help more. What medium are you growing in ?
s
 
xboxjoe

xboxjoe

34
8
hi thanks for your all your input, the ph is 6 and I'm growing in compost, the compost is around 3 weeks old so the natural nutrients would be nearly depleted. I started feeding bio vega 3 days ago, I have read that some of the canna products lack nitrogen
 
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Mattchoopike

Mattchoopike

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Lower the ppms bro. If u fed three days ago an now see this then she's not ready for that much yet
 
BuDGooDE

BuDGooDE

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most multi purpose composts are good to go 4 - 6 weeks. Little ones like that will be fine. They look over fed. I did'nt feed mine until they were big enough to be re-potted, and then i left a couple of weeks for them to uptake nutes from compost first. And then gently does it from there. I increased dosage to just over half and they werent too happy with that. I water every 3 days and feed every other watering. Great saying i learned on here, "Less is more" :) Im not using same nutes as you though, im using Bio Grow and Bio Bloom. I am a week away from switch and have fed last watering 1ml per ltr of Grow and 1 ml per ltr bloom, will carry that on till end 2nd week of flower, flush (just to wash out any excess Nitrogen) and switch to 2ml Bloom to start. Hope thats helpful bro :)
 
Mattchoopike

Mattchoopike

91
18
most multi purpose composts are good to go 4 - 6 weeks. Little ones like that will be fine. They look over fed. I did'nt feed mine until they were big enough to be re-potted, and then i left a couple of weeks for them to uptake nutes from compost first. And then gently does it from there. I increased dosage to just over half and they werent too happy with that. I water every 3 days and feed every other watering. Great saying i learned on here, "Less is more" :) Im not using same nutes as you though, im using Bio Grow and Bio Bloom. I am a week away from switch and have fed last watering 1ml per ltr of Grow and 1 ml per ltr bloom, will carry that on till end 2nd week of flower, flush (just to wash out any excess Nitrogen) and switch to 2ml Bloom to start. Hope thats helpful bro :)
Does your bloom contain N at all? They still need a little during transition an stretch. I pulled my N too quick an caused a def the first time I flowered
 
BuDGooDE

BuDGooDE

133
43
Does your bloom contain N at all? They still need a little during transition an stretch. I pulled my N too quick an caused a def the first time I flowered
Yes Bio Bloom Has N. In your case bro, with your seedlings you dont need to worry too much about nutes. In fact i know some soil growers on here who hardly feed at all throughout their whole grow :-). Ive learnt to let the plants tell me what they need. Bearing in mind that if your rocking different strains they tend to have different needs. I have one that seems to sulk terribly when let to dry slightly, the others thrive on a short dry period up to watering, as soon as the first top couple of inches dry she starts sagging lol.
 
Paul Simon

Paul Simon

397
93
BuDGooDE is spot on. If your plant is in pure compost it is being over fed. With cannabis, less is more. I would suggest learning about the soil food web and how your plants get nutrients from compost vs chemical fertilizers. If you can keep your plant from being force fed, it will take exactly what it needs from your compost/soil. Cheers!
 
BuDGooDE

BuDGooDE

133
43
most multi purpose composts are good to go 4 - 6 weeks. Little ones like that will be fine. They look over fed. I did'nt feed mine until they were big enough to be re-potted, and then i left a couple of weeks for them to uptake nutes from compost first. And then gently does it from there. I increased dosage to just over half and they werent too happy with that. I water every 3 days and feed every other watering. Great saying i learned on here, "Less is more" :) Im not using same nutes as you though, im using Bio Grow and Bio Bloom. I am a week away from switch and have fed last watering 1ml per ltr of Grow and 1 ml per ltr bloom, will carry that on till end 2nd week of flower, flush (just to wash out any excess Nitrogen) and switch to 2ml Bloom to start. Hope thats helpful bro :)
 
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BuDGooDE

BuDGooDE

133
43
hi thanks for your all your input, the ph is 6 and I'm growing in compost, the compost is around 3 weeks old so the natural nutrients would be nearly depleted. I started feeding bio vega 3 days ago, I have read that some of the canna products lack nitrogen
If your ph is 6 bro thats sweet :) Although 6.5 is the very sweet spot. Yours is defo an over feeding issue. Just give pure water, allow a descent run off to wash those chemical salts out and watch those babies boom :). By the wy I never knew 1/2 this stuff until I joined here :) Stick around bro you could'nt be in better company. I can help with simple matters but am only a beginner myself :) Th FAQ Section on here is brilliant bro, have a browse, im glad I did its a treasure trove of knowledge :-)
 
Paul Simon

Paul Simon

397
93
Let's talk about nutrient solution pH with organics for a few, shall we? Most if not all liquid organic fertilizers are made by dissolving the source material in a heavy organic acid(ie vinegar, fulvic acid). From here there is a split in how organics are finished. Some are simply packaged as is, some are buffered to a more neutral pH, some are digest with micro-organisms then buffered, or the reverese. If your nutrients are not buffered(they drop the pH of your solution significantly when you add it) you may want to keep reading.

A prime example of a microbe digested unbuffered nutrient is Hurculean Harvest from NFTG. The acids are still present in the bottle and go into your medium when you feed. We find that feeding nutrients like this tend to lead to the pH of the medium drifting even lower as the remaining organic acids go to work on the medium. So as we begin to feed heavily, we want to pH the nutrient solution just a bit higher than usual as the organic reactions are slower to occur and the medium will drift toward acid. Often our heaviest feeding with organics is pH right at 7, sometimes up to 7.3. 8 hours later we find the pH of the medium to be sitting nicely around 6.5.

Sorry for the rant.
 
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