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2015 Yogurt Cup Grow Contest

2015 Yogurt Cup Grow Contest

  • Explosiv

    Votes: 3 8.8%
  • Garuda

    Votes: 8 23.5%
  • Dropped Cat

    Votes: 5 14.7%
  • Bugman

    Votes: 0 0.0%
  • Trichrider

    Votes: 1 2.9%
  • Dr. King

    Votes: 15 44.1%
  • stihgnobevoli

    Votes: 2 5.9%

  • Total voters
    34
  • Poll closed .
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HarvestMoon303

Active member
Oaha6E5.png
 

trichrider

Kiss My Ring
Veteran
the yellowing is beginning to chaff my butt. got me trying everything I could think up to turn her around. particularly, I foliar fed with a balanced nutrient..finally I ended up extracting her from the cup and dissolving the rootball in water to reduce size. I then repotted with sunshine #4 and applied foxfarms 3part to no avail. she is still alive (barely) and producing flowers, but will never raise any bars.


sad to see, yes?
the other two girls are better off but not by much.



my choice of medium has bitten me in the ass.
and now I have to relearn how to use salts...

boohoo :bis: lol

so much trouble for three grams of flowers !

rock on.
 

Only Ornamental

Spiritually inspired agnostic mad scientist
Veteran
That's some serious deficiency... why did you wait so long?
What is it, sulphur and/or nitrogen? I have no experience with sulphur but nitrogen is remedied quite quickly for example with foliar urea.
 

dabking

Member
You look like you have cooked em. How hot are you feeding? If it was nitrogen the bottoms would yellow first. Not the whole plant.
 

stihgnobevoli

Active member
Veteran
nah the whole plant will turn pale with nitrogen and have a general pale green look to it, but the same thing can be triggered by not enough mag. the real tell is to look at the leaves. they both turn yellow in both instances, but with nitrogen primarily being the factor the leaves will turn brown starting at the tips and have shriveled by the time the whole leaf is solid yellow like that. with magnesium it looks similar but the leaves stay on for a while even after they turn all yellow depending on how much nitrogen they have. without enough nitrogen the leaves fall off with light pressure, with mag masking it they stay on longer. increase mag and nitrogen def goes away.
 

Only Ornamental

Spiritually inspired agnostic mad scientist
Veteran
At first, I was thinking about magnesium too but in case of magnesium, it isn't that uniform over the whole leaves, starts really with the old leaves and 'works' its way up the plant, and leaves finally become white.
With sulphur though... it's nearly the whole plant yellowing up and the sings are like in the first picture.
At least we can agree that these plants really need help (and can be helped).
 

psyphish

Well-known member
Veteran
I have a similar problem with one of my Spyders, it's pale green and losing leaves fast. I started bottom feeding all the yogi plants, but I'm thinking the nutrient ratios are all wrong for plants that are soaking in nutrient solution instead of getting top fed DTW.

I sprayed all the plants with seaweed extract and General Organics Urtica.
 

Mikenite69

Well-known member
Veteran
Soakin the plants or keeping them in a nutrient solution constantly I don't think is the best idea because then you are inviting root rot to become a factor I mean unless you are letting them dry sometimes. Me personally I would cycle them wet and dry but not to dry especially in flower.

Trichrider Looking at your plant I would definitley say it's a mag defiency with the purpling stems and all... I would get some Epsom salts and some nutes that has everything in it. I would dissolve the Epsom salts first then add your nutes to it and foliar feed with lights and fans off so the plant can absorb it better. I personally in that state would foliar feed 2x a day morning and night until it clears up. You can ofcourse foliar feed with lights on but I find when lights are off the plants rebound faster because the solution that u spray on them doesn't dry off so fast. But in this case foliar when you can to try to help the plant.
 

Only Ornamental

Spiritually inspired agnostic mad scientist
Veteran
Epsom salt is a good choice because its magnesium sulphate. That way, you have both, magnesium and sulphur.
But it's not really available to leaves and watering with it is way more efficient. Alternatively, use (not replace) additional magnesium nitrate for foliar; this is readily available and brings nitrogen with it. Such a combination would give your plant every one of the three nutrients it might be lacking ;) .
 

Mikenite69

Well-known member
Veteran
Sweet didn't know that but it seems to work when I foliar my chem D which is known to be a mag whore. I'll have to try it out in just the root zone and see if that clears it up faster.

I always foliar with Epsom salts but I let dissolve first before I ever spray and I also use a all purpose plant food mixed with it to cure defiencys and seems to work everytime.

But thanks for the tips ornamentals I'll have to see if Epsom in the root zone is a better option.
 

Only Ornamental

Spiritually inspired agnostic mad scientist
Veteran
Foliar nutrients need to be liquid to become plant available because the liquid has to flow through the stoma; usually, it can not penetrate the cuticle. Because of that, salts which are so highly hygroscopic that they become liquid at a reasonably low relative humidity (they dissolve in the water they abstract from air) work a lot better than others which do so only at elevated RH (most sulphates and phosphates need >90% RH). Calcium and magnesium as chloride (which isn't the best choice for plants but work very well) or nitrate (not as hygroscopic) salts have a deliquescence point (RH above which they become liquid) around or below average RH.
One way to circumvent crystallisation and/or drying of a foliar spray is by adding urea or glycerol (both shouldn't be used above 0.5-1%) or other humectants.
Another is to either re-spray with water (like you do) or boosting up RH to near saturation (electrical circuits love that :D ).

There's a whole bunch of scientific literature on this subject: Why Epsom salt still works against deficiencies is simple: it doesn't need much to cut the worst symptoms. But it's not good enough as fertiliser. Magnesium being highly mobile in plants makes its use in soil applications very efficient and maybe as fast as foliar application. Immobile nutrients and such needed only in traces such as micro-nutrients may be more effective against severe toxicity when used as foliar directly on the affected plant parts.
 

trichrider

Kiss My Ring
Veteran
thanks all for your advice. I tried cal-mag first. magnesium sulfate second (as foliar) as well as synthetic nutrients then changed her shoes.
she was burned pretty good by something I did, the other two got same same and are yellowed but not burned.
i'm not too bummed...that's a six ounce cup, they're used to six gallons.

could the worm castings be causing the lockout? I harvested them just before start of challenge...just curious now 'cuz she's no longer in 'em (castings).

:tiphat:
 

Only Ornamental

Spiritually inspired agnostic mad scientist
Veteran
Could be... I did the mistake of using soil too rich in organic matter and got 'complete lockout' cause the microbes fed everything away. That cost me easily two weeks of growth.
 

bugman52

Bug Scissor Hand
Veteran
LEFT TO RIGHT SSK#3[MALE],SSK#4[MAYBE A MALE ILL KNOW IN A FEW MORE DAYS ,GOT MOM OR DAD IN BUD NOW ,ABOUT 7 DAYS IN]
MKU FAR RIGHT.
IF #3&#4 R BOTH MALE ILL PULL #4 UP.
 

Garuda

Member
Veteran
I'm feeding with the blumats :) The Guatemala could use some more nutes but she has to get along with what the majority wants :)
 
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