PHOSPHORUS DEFICIENCY? 4 Weeks 5 days flowering. w/ pics

MammothGrow

Well-Known Member
So this is a phosphorus deficiency yes? Im about to enter week 5 of flowering(at day 27 currently), roots organics 707 soil and have only given them great white myco at transplant and beginning week 3 of flower, and compost tea week 1veg and week1,3,4 of flower. Last watering gave them 1/4 strength roots organics nutrients such as Buddha bloom, trinity, hpk, hp2 and a little Buddha grow. Probably starting to need some more p and k yes?
 

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MammothGrow

Well-Known Member
(at day 27 currently),?
day
So this is a phosphorus deficiency yes? Im about to enter week 5 of flowering(at day 27 currently), roots organics 707 soil and have only given them great white myco at transplant and beginning week 3 of flower, and compost tea week 1veg and week1,3,4 of flower. Last watering gave them 1/4 strength roots organics nutrients such as Buddha bloom, trinity, hpk, hp2 and a little Buddha grow. Probably starting to need some more p and k yes?
actually 3 weeks 6 days flowering. day 27 of flower
 

MammothGrow

Well-Known Member
37 views and only a looks plain hungry. I figure their hungry, but most all of them are pretty lush green, and pretty sure that purpling in the middle of the leaf like that is phosphorus deficiency, I guess I just wanted a yep, that's phosphorus deficiency. Anybody care to comment? I could trust my own judgment but some feedback would be comforting
 

MammothGrow

Well-Known Member
im not getting any replies cause the pics are with the lights on? cause its pretty easy to see what going on there with those purpling leaves
 

greasemonkeymann

Well-Known Member
appreciate the reply, thank you
after re-reading your information, I don't think its a deficiency, roots has a good amount of food in it, and if you are giving it compost teas weekly you should be ok, as far as nutes go, my next hunch would be possibly too much undissolved nutrients, try giving it water until the runoff is clear, I suspect the first watering and it
ll be rather dark, from here, that's my advice, but like always its hard to tell not being there.
if they were only the color of the third pic, then i'd agree, but the first two pics indicate something else is pissing those ladies off. Most common culprit is too much nutes, so i'd start there.
also whats in your teas?
 

MammothGrow

Well-Known Member
after re-reading your information, I don't think its a deficiency, roots has a good amount of food in it, and if you are giving it compost teas weekly you should be ok, as far as nutes go, my next hunch would be possibly too much undissolved nutrients, try giving it water until the runoff is clear, I suspect the first watering and it
ll be rather dark, from here, that's my advice, but like always its hard to tell not being there.
if they were only the color of the third pic, then i'd agree, but the first two pics indicate something else is pissing those ladies off. Most common culprit is too much nutes, so i'd start there.
also whats in your teas?
My tea is Malibu Compost, Denali Alaskan Humus, and Black Gold Earthworm castings in a paint strainer bag brewed for 22 hours. I still need to get some fish hydrosolate or some sort of food stock. So I gave them a 3/4 strength feeding of Roots Organics nutrients last feeding, its been about 2 days since the feeding and theirs some new purpling showing up on some of the fan leaves. Heres some pics. I only gave them a 1/4 strength feeding about a week and a half ago, now this 3/4 strength feeding, that's it other than the tea throughout their life. The pictures show pretty accurately but they are slightly a darker green than in the picture.
 

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greasemonkeymann

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My tea is Malibu Compost, Denali Alaskan Humus, and Black Gold Earthworm castings in a paint strainer bag brewed for 22 hours. I still need to get some fish hydrosolate or some sort of food stock. So I gave them a 3/4 strength feeding of Roots Organics nutrients last feeding, its been about 2 days since the feeding and theirs some new purpling showing up on some of the fan leaves. Heres some pics. I only gave them a 1/4 strength feeding about a week and a half ago, now this 3/4 strength feeding, that's it other than the tea throughout their life. The pictures show pretty accurately but they are slightly a darker green than in the picture.
ok so your tea is an AACT, just clarifying..( and you are correct, you need food-stock for that tea, go to the store and buy some blackstrap molasses) I stand by my original assessment, I don't think it's a deficiency, I believe feeding will exacerbate your problem.
however I do think that a proper AACT could help, I stress "could"
 

MammothGrow

Well-Known Member
ok so your tea is an AACT, just clarifying..( and you are correct, you need food-stock for that tea, go to the store and buy some blackstrap molasses) I stand by my original assessment, I don't think it's a deficiency, I believe feeding will exacerbate your problem.
however I do think that a proper AACT could help, I stress "could"
yeah AACT, ive got High Brix Molasses I can use until I get something better. my soil temp is about 64 degrees, do you think that could be hindering P,K, and N uptake? or would it have to be colder than that? the canopy is around 79 degrees
 

MammothGrow

Well-Known Member
ok so your tea is an AACT, just clarifying..( and you are correct, you need food-stock for that tea, go to the store and buy some blackstrap molasses) I stand by my original assessment, I don't think it's a deficiency, I believe feeding will exacerbate your problem.
however I do think that a proper AACT could help, I stress "could"
do you think since im using 3 gallon smart pots, which hold more like 2 1/2 gallons of soil that it could be a deficiency from the plants using all the available nutrients in there. The plants are about 3' tall on average. So far out of all the diagnosis ive read this one with the picture of phosphorus deficiency seems the closest.

http://www.mandalaseeds.com/Guides/Marijuana-Nutrient-Problems
 

greasemonkeymann

Well-Known Member
yeah AACT, ive got High Brix Molasses I can use until I get something better. my soil temp is about 64 degrees, do you think that could be hindering P,K, and N uptake? or would it have to be colder than that? the canopy is around 79 degrees
no, I think you are overthinking it, or over analyzing probably is the better term, and that's nothing bad on your part, but I think too much information is rolling around in your head. I've grown herb in some pretty cold soil, and it doesn't hurt them much other than slow them down a bit, but in my experience, I've never seen temperature cause issues like those, 90% of the time seeing leaves like that either means its severely rootbound (possible I guess) or something being off on the soil, I think the roots soil has a fair amount of nutes in it, and somehow it's being agitated by the additives you are adding.
I've grown four different plants using just a base soil (roots for two, and vermifire for the other two) didn't feed them anything at all, just water, and they grew fine, not showing much any deficiencies, the leaves were a lighter green, but that's understandable, but the buds were fine, small, sure. Point is, with zero food, they never showed that type of problem.
I have a hunch its nutrient lock-out, impossible to tell from here though
 

greasemonkeymann

Well-Known Member
do you think since im using 3 gallon smart pots, which hold more like 2 1/2 gallons of soil that it could be a deficiency from the plants using all the available nutrients in there. The plants are about 3' tall on average. So far out of all the diagnosis ive read this one with the picture of phosphorus deficiency seems the closest.

http://www.mandalaseeds.com/Guides/Marijuana-Nutrient-Problems
this may be an issue, how old are the plants? three feet would be best suited for 6 gallons, my rule of thumb is 2-gallons per foot of growth if you are organic and in soil, some say 2.5 gallons
course if it was an issue you may have no problems at all, minus being rootbound.
 

greasemonkeymann

Well-Known Member
so check it out, I did a lil looking...
Buddha bloom .5 - 2 - 1.5
hpk 0 - 5 - 4
hp2 0 - 4 - 0
Buddha grow 2 - .5 - .25
no way you have any deficiency. Something isn't jiving with the others.... Somebody is not playing well with the other children.
I understand you fed at a quarter strength, but man, I honestly would do that all the time, but that's me, and I don't grow that way anyways, not that its bad, just not my way.
even still, a quarter strength of all those added up is still a good amount of nutrients.
water two to three gallons of somewhat room temp water for each of your plants, and see what comes out, my guess is it'll look like coffee, if it's not all brown, then at least you ruled out that possibility.
Not to mention all plants should get that type of irrigation every 10-15 days anyways
if it's not that, then they may be badly rootbound, but I don't think that's it, unless they are year old three footers..
 
What are you watering with and what's the PH of the water? I was under PHing some plants of mine and it was looking like a weird mix of various toxicities and deficiencies. I would echo Greasemonkey's suggestion of NOT feeding more nuts, just flush whatevers in there out (as much as that is possible) while trying to bring your PH to 6.5. Then Slowly start to introduce small amounts of a broad spectrum fertilizer in there after a week. This is working for me so far, and may for you if our problems are the same!
 

MammothGrow

Well-Known Member
so check it out, I did a lil looking...
Buddha bloom .5 - 2 - 1.5
hpk 0 - 5 - 4
hp2 0 - 4 - 0
Buddha grow 2 - .5 - .25
no way you have any deficiency. Something isn't jiving with the others.... Somebody is not playing well with the other children.
I understand you fed at a quarter strength, but man, I honestly would do that all the time, but that's me, and I don't grow that way anyways, not that its bad, just not my way.
even still, a quarter strength of all those added up is still a good amount of nutrients.
water two to three gallons of somewhat room temp water for each of your plants, and see what comes out, my guess is it'll look like coffee, if it's not all brown, then at least you ruled out that possibility.
Not to mention all plants should get that type of irrigation every 10-15 days anyways
if it's not that, then they may be badly rootbound, but I don't think that's it, unless they are year old three footers..
yeah I think youre right, best thing to do is flush and see if that helps before anything else. I can probably guarantee itll look like coffee coming out cause when I fed them 3/4 strength the runoff is pretty brown. Ill flush with compost tea in the water so I can clear them out and add some beneficial organisms at the same time to help balance everything out in there. Thank you for your help for real! Ill post some pictures in a few days of what they look like a couple days after the flush.
 

greasemonkeymann

Well-Known Member
yeah I think youre right, best thing to do is flush and see if that helps before anything else. I can probably guarantee itll look like coffee coming out cause when I fed them 3/4 strength the runoff is pretty brown. Ill flush with compost tea in the water so I can clear them out and add some beneficial organisms at the same time to help balance everything out in there. Thank you for your help for real! Ill post some pictures in a few days of what they look like a couple days after the flush.
You are very welcome, holla if you need help, i'd hold-off on the compost tea until after the runoff is clear, just to be sure.
 
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