(PICS) What is going on here with her old Fan leaves! ++REP

doggyd

Active Member
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:wall:Well Today I wake up and notice this going on! :wall:

Is this Phosphorus Deficient or Potassium Deficient? Help Me please! Or something else!
Best answer gets REP.....
 

TaoWolf

Active Member
What nutrients are you using, how old is the plant (is it veg or flowering), are you using tap water or distilled/RO, have you checked pH?
 

doggyd

Active Member
How can the plant be BURNT? Do you see the little black dots, freckles on the under of the plant!
My plant is 40 days into veg. And I'm using fox farm nutes. And I'm going half right now
ph 6.7 with distilled water!
 

iPACKEDthisBOWL4TWO

Well-Known Member
Im just assuming the simplest problems first...... Trying to fix a def when it could just be something simple as Ph or nute strength. Have you checked your runoff PPM vs your nute mix PPM. By seeing what your putting in and whats coming out you could easily establish if its a Ph problem you could be having. Plants take up different nutes at different Ph's.
 

TaoWolf

Active Member
How can the plant be BURNT? Do you see the little black dots, freckles on the under of the plant!
My plant is 40 days into veg. And I'm using fox farm nutes. And I'm going half right now
ph 6.7 with distilled water!
Are you using a micro element additive along with the distilled water?
 

doggyd

Active Member
Phosphorus (P) Mobile Element and Macro Element

Benefit: Phosphorus does a lot of things for the plant. One of the most important parts of Phosphorus is: It aids in root growth and influences the vigor of the plant and is
one of the most important elements in flowering as well helps to germinate seedlings.
Phosphorus is an essential plant nutrient, and since it is needed in large amounts, it is classified as a macronutrient. Phosphorus is a MAJOR important nutrient in the plants reproductive stages. Without this element the plants will have a lot of problems blooming without proper levels of Phosphorus.


When your plants are deficient in phosphorus, this can overall reduce the size of your plants. Not enough causes slow growth and causes the plant to become weak, to little amount of Phosphorus causes slow growths in leaves that may or may not drop off. The edges all around the leaves or half of the leaves can be brownish and work its way inwards a bit causing the part of the leaves to curl up in the air a bit. Fan leaves will show dark greenish/purplish and yellowish tones along with a dullish blue color to them. Sometimes the stems can be red, along with red petioles that can happen when having a Phosphorus deficiency. This isn’t a sure sure sign of you having one though, but can be a sign. Some strains just show the red petioles and stems from its genes.
So pretty much the overall dark green color with a purple, red, or blue tint to the fan leaves is a good sign of a Phosphorus deficiency. Having Cold weather (below 50F/10C) can make phosphorous absorption very troublesome for plants.
Many people get a Phosphorus deficiency confused with a fungus problem because the ends of the leaves look like a fungus problem, But the damage occurs at the end of the leaves. side of the leaves and has a glass like feeling to it as if it had a ph problem. Parts affected by a phosphorus deficiency are: Older Leaves, Whole plant, Petioles.

Too much Phosphorus levels affect plant growth by suppressing the uptake of: Iron, potassium and Zinc, potentially causing deficiency symptoms of these nutrients to occur def in plants. A Zinc deficiency is most common under excessive phosphorus conditions,
As well as causing other nutrients to have absorption troubles like zinc and copper. Phosphorus fluctuates when concentrated and combined with calcium



Problems with Phosphorus being locked out by PH troubles
Cold wet soils, acid or very alkaline soils, compacted soil.


Soil

Phosphorus gets locked out of soil growing at ph levels of 4.0-5.5
Phosphorus is absorbed best in soil at a ph level of 6.0-7.5 (wouldn’t recommend having a ph of over 7.0 in soil) Anything out of the ranges listed will contribute to a Phosphorus deficiency.


Hydro and Soil less Mediums

Phosphorus gets locked out of Hydro and Soil less Mediums at ph levels of 6.0-8.5.
Phosphorus is absorbed best in Hydro and Soil less Mediums at ph levels of 4.0- 5.8. (Wouldn’t recommend having a ph over 6.5 in hydro and soil less mediums.) Best range for hydro and soil less mediums is 5.0 to 6.0. Anything out of the ranges listed will contribute to a Phosphorus Deficiency.



Solution to fixing a Phosphorus deficiency
Some deficiency during flowering is normal, but too much shouldn't be tolerated. Any chemical or organic fertilizers that have Phosphorus in them will fix a Phosphorus deficiency. If you have a phosphorus deficiency you should use any N-P-K ratio that is over 5.Again Peters all purpose 20-20-20 is a good mix. Miracle grow Tomato plant food, Miracle grow All purpose plant food (Only mixing at ½ strength when using chemical nutrients, or it will cause nutrient burn!) Other forms of phosphorus supplements are: Bone meal, which is gradual absorption, I suggest making it into a tea for faster use, where bone/blood meal is slow acting, but when made into a tea it works quicker! Fruit eating bat guano, which is fast absorption, Worm castings, which is gradual absorption, Fish meal, which is medium absorption, Soft Rock Phosphate, which is medium absorption, Jamaican or Indonesian Guano, which is fast absorption. Crabshell, which is slow absorption. Tiger Bloom , which is fast absorption.

Here is a list of things to help fix a Phosphrus Deficiency.

Chemical

Advanced nutrients Bloom (0-5-4)
Vita Bloom (0-7-5)
BC Bloom (1.1-4.4-7)
GH Flora Bloom (0-5-4)
GH Maxi Bloom (5-15-14)
GH Floranova Bloom (4-8-7)
Dyna-Gro Bloom (3-12-6)
Fox Farm Tiger Bloom (2-8-4)
Awsome Blossums

Organic

Dr. Hornby's Iguana Juice Bloom (4-3-6)
Advanced Nutrients Mother Earth Bloom (.5-1.5-2)
Fox Farm Big Bloom (.01-.3-.7)
Earth Juice Bloom (0-3-1)
Pure Blend Bloom (2.5-2-5)
Pure Blend Pro Bloom (2.5-2-5)
Buddswell (0-7-0)
Sea Island Jamaican Bat Guano (1-10-0)
Indonesian Bat Guano (0-13-0)
Rainbow Mix Bloom (1-9-2)
Earth Juice Bloom (0-3-1)
BIO BLOOM (2-6-3.5)
AGE OLD BLOOM (5-10-5)
ALASKA MORBLOOM (0-10-10)
METANATURALS ORGANIC BLOOM (1-5-5)


Any of these will cure your phosphorus deficiency. Affected leaves will not show recovery but new growth will appear normal.


Now if you added to much chemical ferts and or organics,( which is hard to burn your plants when using organics) You need to Flush the soil with plain water. You need to use 2 times as much water as the size of the pot, for example: If you have a 5 gallon pot and need to flush it, you need to use 10 gallons of water to rinse out the soil good enough to get rid of excessive nutrients.


Note: Blood Meal, Dried Blood, Guanos, Kelp Meal, Cotton Seed Meal, Peat Moss,
Sulfur and fish meal are all acidic and can bring your ph down, so if you add these please monitor your ph when using those.

Note: Bone Meal, Rock Phosphate, Wood Ashes pretty much all ashes, Shellfish Compost and Crab Meal are all alkaline and can make your ph go up, so if you add any of these please monitor your ph.
 

doggyd

Active Member
So what's the solution and real problem? FF nutrients have more than enough phosphorous for a plant in veg... Have you been majorly under-feeding or something?
I may be under feeding with my nutrients. so i just brought it up with 2 tbsp big bloom and 2 tsp grow big. We will see what happens tomorrow when I wake up?
 

TaoWolf

Active Member


I may be under feeding with my nutrients. so i just brought it up with 2 tbsp big bloom and 2 tsp grow big. We will see what happens tomorrow when I wake up?
Hope that's the issue (easy fix). lol

Update the thread if the problem gets worse or don't resolve?
 

doggyd

Active Member
Hope that's the issue (easy fix). lol

Update the thread if the problem gets worse or don't resolve?
Actually its not! It seems, the whole plant may be dying! Every single leaf besides new growth has the deficeny! Black dots, becoming super dry and brittle enough when touched it just breaks! So I cut off most of the big old dificient fan leaves! So now there are just a shit load of tops showing! Now I'm just hoping she can survive it all!


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Stomata

Well-Known Member
If you're cutting off the affected leaves without fixing the problem, the problem is only going to spread to the unaffected leaves even quicker. My guess is PH or more than likely burn. Flush them with 6.5 PH water and leave them alone for a week.
 

Dj1209

Well-Known Member


Actually its not! It seems, the whole plant may be dying! Every single leaf besides new growth has the deficeny! Black dots, becoming super dry and brittle enough when touched it just breaks! So I cut off most of the big old dificient fan leaves! So now there are just a shit load of tops showing! Now I'm just hoping she can survive it all!



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If you cut off the fan leaves you really just hurt your plant even more think about it the fan leaves are the main source of light absorption for the plant without them its not going to be good, and just cutting them off won't make your problem go away keep an eye on the new growth for further problems.
 

Snow Crash

Well-Known Member
Looks like an immobile element deficiency. Calcium and Phosphorus are the primary elements in question, and I think phosphorus is the element in issue, though Phosphorus deficiency can be easily confused with a mold infection.

Your feeding levels are adequate enough to prevent the issue from being an under feeding problem. This indicates element or pH imbalance. Regardless of the issue, be it sulfur toxicity due to Epsom Salt treatments or a high pH due to high levels of bicarbonates, the solution would be the same.

You should probably flush the system to ensure there is not a build up and to balance the pH. Then you'll want to rebuild the nutrient buffer with your Grow Big and Big Bloom. 1tsp or Grow Big and 2tsp of Big Bloom is plenty of nutrition for this. You may want to also top dress the soil with crushed dolomite garden lime to provide a better micro-nutrient profile as FF is notoriously lame when it comes to including elements like Calcium and Magnesium.

If after a flushing, a balancing, and knowing all the variables are dialed in... if the problem still continues then you probably have a mold. Black spot fungus would be the first guess, but it could be worse. In that case you want to remove all heavily infected leaves and spray the whole thing down with a fungicide.

Good luck dude.
 

TaoWolf

Active Member
I'm still wondering if you have been supplementing micronutrients since you are using distilled water...
 

doggyd

Active Member
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Ok so I chopped all old BIG FAN LEAVES and this is what I am stuck with! Still very healthy plant! The problem is phosphorus deficient and once its like that you can't do anything to bring the leaf back to great looking health! So No all tops are showing, let her boost her grow like this then, flower in two weeks.
 
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