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Phosphorus deficiency - Can I use Jack's 10-30-20 as a foliar spray?

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Phosphorus deficiency - Can I use Jack's 10-30-20 as a foliar spray?

BuyBTC 27 Replies 4,472 Views
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BuyBTC

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#1
My plants are currently in middle of week 3 of flower showing phosphorus deficiency after using 2/3 recommended dose of big bud from advanced nutrients. Lower leaves keeps dying even after a flush run off of 700-800ppm and 6.5 ph. I am growing in rockwool. there are four different phenos and two are almost unaffected by the nutrient burn. but the other two continue to show the deficiency with 10% of the plants starting to herm. They are currently fed with GH's 3 part fertilizer.

Can I use Jack's 10-30-20 as a foliar spray to give them the P? what ppm concentration of the solution should be?
 
#2
BuyBTC said:
My plants are currently in middle of week 3 of flower showing phosphorus deficiency after using 2/3 recommended dose of big bud from advanced nutrients. Lower leaves keeps dying even after a flush run off of 700-800ppm and 6.5 ph. I am growing in rockwool. there are four different phenos and two are almost unaffected by the nutrient burn. but the other two continue to show the deficiency with 10% of the plants starting to herm. They are currently fed with GH's 3 part fertilizer.

Can I use Jack's 10-30-20 as a foliar spray to give them the P? what ppm concentration of the solution should be?
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i’d like to see pictures of plants?.,
 
#4
How far behind are the buds? I wear medium sized gloves. In the middle of wk 3
 

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#6
going back to my original question, can I use Jack's 10-30-20 as a foliar spray to give them the P? what ppm concentration of the solution should be?

the leaves kept on browning. i am thinking it would help to do a foliar spray but dont want to further stress them
 
#9
BuyBTC said:
Just under. Some plants have hermied and we combed through every plant to remove the pollen sacks and nanners. How often will these return?
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The nanners release pollen as soon as they show and herms need to get tossed out. Did you have a light issue? Also it's normal in flower to have lower leaves be canibalised and fall off if they aren't getting light.
 
#10
cannafarmer420 said:
The nanners release pollen as soon as they show and herms need to get tossed out. Did you have a light issue? Also it's normal in flower to have lower leaves be canibalised and fall off if they aren't getting light.
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no light issue. the plants were burned with big bud. see OP.

will female flowers continue to develop normally after becoming hermed if I keep plugging the pollen sacs?
 
#11
BuyBTC said:
going back to my original question, can I use Jack's 10-30-20 as a foliar spray to give them the P? what ppm concentration of the solution should be?

the leaves kept on browning. i am thinking it would help to do a foliar spray but dont want to further stress them
Click to expand...
Man foliar applications this far into flower is tempting fate. I’ve never needed to do that.
That one leaf in the canopy is light deprived and dying back. It’s normal. Less light less airflow. All contributors to this effect.
 
#12
Captspaulding said:
Man foliar applications this far into flower is tempting fate. I’ve never needed to do that.
That one leaf in the canopy is light deprived and dying back. It’s normal. Less light less airflow. All contributors to this effect.
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This is my second run with them. They did great during the first run and did not show any of the symptoms without the AA big bud. They did not herm either.
 
#13
BuyBTC said:
This is my second run with them. They did great during the first run and did not show any of the symptoms without the AA big bud. They did not herm either.
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I run the powder myself. I bomb my plants with it. There’s something else off, if growth was stunted overall, and the plants were suffering more outward symptoms I would have to think it was a factor. Your plants are definitely not showing anything near a p or k toxicity.
 
#14
BuyBTC said:
no light issue. the plants were burned with big bud. see OP.

will female flowers continue to develop normally after becoming hermed if I keep plugging the pollen sacs?
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Im with cap on this one, it's not nutes. You can pluck whatever you want herm/nanner wise, the buds will grow but be packed with seeds if they were pollinated this early
 
#15
cannafarmer420 said:
Im with cap on this one, it's not nutes. You can pluck whatever you want herm/nanner wise, the buds will grow but be packed with seeds if they were pollinated this early
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they were still in very early stage. no pollen i can see.
 
#16
cannafarmer420 said:
Im with cap on this one, it's not nutes. You can pluck whatever you want herm/nanner wise, the buds will grow but be packed with seeds if they were pollinated this early
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Yeah man, you def were headed in the right direction in your first post. I agree with you 100% buddy.
 
#18
I’d really like to see where they were, they definitely could have been open by now, and there could be more culprits too. Is there any sign of any pollen dumps on any lowers?
 
#20
you have leaf edge curl,..
that’s light stress..
also what seems to looked like watering issues earlier on in the plants life?..
 
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