Aussie Growers Thread

reza92

reza92

Well-Known Member
Bullygrowz said:
Are you saying that the purple that come out from cooler temps are phosphorus defficency? Coz my plants will get colours in the heart of winter but nothing of my nutrient regime changes
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Yes. Cold temps inhibit the ability for the root zone to uptake phosphorus. Purpling is either genetic or phos def, if it’s genetic it’ll happen year round regardless.
 
Bullygrowz

Bullygrowz

Well-Known Member
reza92 said:
Yes. Cold temps inhibit the ability for the root zone to uptake phosphorus. Purpling is either genetic or phos def, if it’s genetic it’ll happen year round regardless.
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Interesting.. so is there two ways to tackle this you could obviously make your temps right during winter with heaters n what not (the better option) and could you also supplement more phosphorus or would this just likely to cause lockout issues?
 
JimyTheCook

JimyTheCook

Well-Known Member
Bullygrowz said:
Interesting.. so is there two ways to tackle this you could obviously make your temps right during winter with heaters n what not (the better option) and could you also supplement more phosphorus or would this just likely to cause lockout issues?
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Could ya foliar feed with phosphorus to avoid lockout in the root zone?
Option A would probs just be the easier way about it
 
reza92

reza92

Well-Known Member
Bullygrowz said:
Interesting.. so is there two ways to tackle this you could obviously make your temps right during winter with heaters n what not (the better option) and could you also supplement more phosphorus or would this just likely to cause lockout issues?
Click to expand...
Phosphorus deficiency’s are rarely because there’s not enough phosphorus there for the plant. 9/10 if you’ve got a phos def you have something going wrong in your environment, media or nutrient causing it to be locked out. Throwing more phos in there is just adding fuel to the fire. It’s why I got on the calcium foliar train, calcium is hard for the plant to absorb through the root zone in sufficient quantities and bonds with phosphorus in the media/nutrient to form dicalcium phosphate which can’t be uptaken by the plant and therefore locks out both the phos and cal it contains.

Product like mammoth p (which I don’t personally use) are good because they help break down this dical phos and make the phos more mobile and easier for the plant to uptake
 
reza92

reza92

Well-Known Member
Bullygrowz said:
Yeah you could but you dont wanna be foliar feeding through flower really
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Why not, plants are off putting stupid amounts of water vapour anyway. I foliar calcium all the way up till week 2-3 of flower and have started hitting them with potassium citrate 2 or 3 times in weeks 6-8

If you look at what phos does in a plant you really only need it in mid to late veg and maybe the first 2 weeks of flower
 
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