Nute burn and Potassium Deficiency or just nute burn?

U

UrbanGreenThumb

Member
I know I have nute burn on the plant but I'm wondering if it's only a nute burn problem or also a deficiency problem as well? Is this also a potassium deficiency? I am seeing nute burns on the tips but also I am seeing yellowing on the edges of the leaves located at the top of the plant, on the internal part of the plant but not the perimeter.

Strain: Auto Moby Dick Dinafem: Day 42
Temp: 76
RH: 50%
Nutes: Dr. Earth (Dry amendments- slow release) Veg 35% and Flowergirl 65% 2 tbsp per gal
Distance from lights: 18"
Training: LST
Water: RO water once a day
PH: 6.5-6.8 (before people freak out this is the proper ph using Dr. Earth slow release nutes in coco)
Medium: Coco with 5-10% perlite with mycorrhizal
2 gal fabric pots

Please let me know your thoughts, thank you!IMG_0358.jpg
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U

UrbanGreenThumb

Member
getogrow said:
give her a full dose of full balanced food. i think it needs more K but thats a guess because you are using organic nutes. A full dose of npk something with cal and mag in it would do her great.
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I also have some of the General Hydroponics Trio on hand, would you recommend me feeding her that a few times for a quick fix? And when you say give her a full balanced dose, are you referring to a feeding with equal parts NPK and also some cal/mag?
 
getogrow

getogrow

Well-Known Member
UrbanGreenThumb said:
I also have some of the General Hydroponics Trio on hand, would you recommend me feeding her that a few times for a quick fix? And when you say give her a full balanced dose, are you referring to a feeding with equal parts NPK and also some cal/mag?
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Yes. use that just for a quick fix.
I dont mean 1-1-1 to be exact .....i just mean your regular bloom food but make sure it has Ca and Mag in it or buy some. (epson salt is Mag.) I doubt your three part has Ca and Mag in it so you might have to supplement it.
 
U

UrbanGreenThumb

Member
getogrow said:
Yes. use that just for a quick fix.
I dont mean 1-1-1 to be exact .....i just mean your regular bloom food but make sure it has Ca and Mag in it or buy some. (epson salt is Mag.) I doubt your three part has Ca and Mag in it so you might have to supplement it.
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I am thinking about putting together a mixture that will total to 6-5-8 and put in at 1ml per gal. This mix will have a good amount of micro nutes in it cal, mag, silica etc as well.
 
U

UrbanGreenThumb

Member
getogrow said:
1ml per gallon is fairly weak. It should be cl;oser to 5ml per gallon, maybe more.
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I don't have experience with adding bottle nutes to slow release nutes that are already in the soil so I was thinking about playing it safe. But you are saying even with the slow release I can add that much into my mix?
 
getogrow

getogrow

Well-Known Member
UrbanGreenThumb said:
I don't have experience with adding bottle nutes to slow release nutes that are already in the soil so I was thinking about playing it safe. But you are saying even with the slow release I can add that much into my mix?
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Yes , i am. The slow realease is not going to affect it too much because its not available to the plant right now. plus there is a good chance that you already used up all the slow release balls. Either way i stand by adding a bunch of food. 5ml per gallon of what you said is not that much. My food has close to the same numbers and 5ml is the lowest i would use. 15ml being the highest i would use.
 
U

UrbanGreenThumb

Member
ComfortCreator said:
Its early to show a K deficiency...make sure you water carefully at the right PH. I would guess that first before a K problem.
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Thanks but I do not think its a ph problem since I have been staying in range and I check everyday before watering with 3 different ph readers. I am coming to the end of 3 weeks since I last amended the soil and I need to amend the soil every 3-4 weeks, so I am thinking its time to top dress the soil again and the current nutes have been depleted.
 
U

UrbanGreenThumb

Member
go go kid said:
seaweed solution is a plant tonic a great sorce oftrace elements and some npk.
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Hey go go kid, I do not have seaweed but I have tons of other bottled nutes for pretty much any deficiency so I would rather not buy another bottle if not needed. What kind of deficiencies are you thinking I have though?
 
go go kid

go go kid

Well-Known Member
UrbanGreenThumb said:
The problem seems to be getting slightly worse. Maybe I need to going even stronger on the bottled nutes? Also the "rust" spots it looks like a calcium deficiency? What do you guys think? View attachment 4768188View attachment 4768189View attachment 4768190
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patients young warrior grower, these things take a while to sort out and will be seen on new growth as a result, leaves wont turn back to green, but you probably know that allready.
im not up on deficancies as i dont get them in my organig grown soil plants, thats real soil, not pretend coco thats inert when everythings washed out of it first.
wait for wiz'iz leaf pics with leaves of all kinds of deficancies. ill try and find it for you in the search bar top right corner, its great
 
U

UrbanGreenThumb

Member
So this may sound odd but you have to keep in mind this is for slow release dry organic amendments, so my ph is between 6.2-6.8 but mostly 6.5-6.8. And with dry amendments you are not supposed to have run off because the amendments do not product salt build up, so I do not measure the ppm of run off
 
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