Yellowing

Breezee77

Breezee77

Active Member
Can anyone tell what this is? I thought nitrogen at first and have tried to increase the dosage. I use general nutes and they are in soil. They are in veg right now. We want to start flower ASAP…

I'm new to this, so don't know how exactly I should increase the nitrogen. We were doing 1.2 EC and now I increased it to 1.9 EC. Should I increase it even more? I tried lowering the other nutes and increased the Flora Nova Grow because it has the most nitrogen. Could this be another deficiency too??

Also, I tried folliar spraying a couple times with verde that has a lot of nitrogen in it. Is that a good thing to do?

What would you do???? Please help! It's greatly appreciated! I feel like I'm in a pickle!
 

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vostok

vostok

Well-Known Member
Ease up on the (N) or any nutes and relax, its very typical of many strains to shed some leaves, in preparation of falling to bud, and yes if you are overconcerned then continue with the foilar feeding the fan leaves, 1/4 teaspoon to a pint hand spray bottle fill with warm water and spray 2x times a day, raise lights beforehand.

See the yellow fan leaves as the plants feeding of of them, eventually they will go brown and necrotic,dead! that can be disconnected or composted
 
O

oxanaca

Well-Known Member
how are you lighting the plants. and what are you fertillizing them and at what rate
also the branches are all really thin weak looking and purple
 
Breezee77

Breezee77

Active Member
oxanaca said:
how are you lighting the plants. and what are you fertillizing them and at what rate
also the branches are all really thin weak looking and purple
Click to expand...
They are under 1000 watt blue lights. I am using Silica, Cal Mg, Flora Nova Grow, Fox Farm Big Bloom and Hydrozyme... I was doing 1.2 EC, but the tap water itself is .6 EC, so i was thinking that it's not enough nutes. About 6.0 for PH.... I increased it to 1.5 EC the feeding before and 1.9 EC in the feeding today.

Also room is 80 degrees and CO2 is 1000. I know that it has been dry and below 40% for a little while, but now it is over 40%.... Not sure if that can cause anything.

What's up with the purple branches? What should I do?

vostok said:
Ease up on the (N) or any nutes and relax, its very typical of many strains to shed some leaves, in preparation of falling to bud, and yes if you are overconcerned then continue with the foilar feeding the fan leaves, 1/4 teaspoon to a pint hand spray bottle fill with warm water and spray 2x times a day, raise lights beforehand.

See the yellow fan leaves as the plants feeding of of them, eventually they will go brown and necrotic,dead! that can be disconnected or composted
Click to expand...
Is foliar feeding 2 times a day bad? I thought I read something about making the plants get their nutes lazy? How much is too much foliar spraying?
 
Dr. Who

Dr. Who

Well-Known Member
Why are you using a bloom nute in veg? Big Bloom is a Bloom fert geared to increase the uptake. You are using a silica. which one?
Most silica supplements add K. You don't NEED added K in veg.....Botanicare makes a Silica with only .5 K and that's the one I use for just that reason.
I think you have a to much P&K thing going on......But before I stick my neck out on that.
What Soil?
How often do you feed?
You see some "uptake" enhancers work REALLY well to the point where you may be over doing it with the feeding.
Sea Green has me doing 50% LESS feeding and is blowing up the yields and the quality! The combination of the soil's nutrient availability and the nutrition your using, with all the kelp/humics/fulvics in play have me thinking that way...
If this is it,,,,there is nothing that will bring back the yellow leaves.....look for the fix in the new growth.
Soil takes around 7 days to show any type of change in a plant from repair work or changes.
 
viper264

viper264

Well-Known Member
i think big bloom is an all around organic fert. the tiger bloom is their bloom formula if im not incorrect.
 
Breezee77

Breezee77

Active Member
Dr. Who said:
Why are you using a bloom nute in veg? Big Bloom is a Bloom fert geared to increase the uptake. You are using a silica. which one?
Most silica supplements add K. You don't NEED added K in veg.....Botanicare makes a Silica with only .5 K and that's the one I use for just that reason.
I think you have a to much P&K thing going on......But before I stick my neck out on that.
What Soil?
How often do you feed?
You see some "uptake" enhancers work REALLY well to the point where you may be over doing it with the feeding.
Sea Green has me doing 50% LESS feeding and is blowing up the yields and the quality! The combination of the soil's nutrient availability and the nutrition your using, with all the kelp/humics/fulvics in play have me thinking that way...
If this is it,,,,there is nothing that will bring back the yellow leaves.....look for the fix in the new growth.
Soil takes around 7 days to show any type of change in a plant from repair work or changes.
Click to expand...
Soil is HP Promix - ngredients:
Canadian Sphagnum peat moss (65-75 % / volume)
Perlite - horticultural grade
Dolomitic and Calcitic limestone (pH adjuster)
Wetting Agent
Mycorrhizae - endomycorrhizal fungi (Glomus intraradices

Dyna-gro Silica 0-0-3 - 3% K20

Big Bloom - .01-.3-.7
  • Special; micro-brewed formula incorporates earthworm castings; bat guano and other high test organic ingredients
  • Big Bloom will intensify flower fragrance; and it will increase essential oil production
  • Big Bloom is ideal for all flowering and fruiting plants



Big bloom is used every other time. it is I've been watering them about every 3-4 days. We got this formala from a friend so there could be mistakes!

If you think I should replace something, with what exactly? What EC would you have the water! I'm confused and new to this and I really want to have healthy plants!

Thank you!!!
 
O

oxanaca

Well-Known Member
Dr. Who said:
You are using a silica. which one?
Most silica supplements add K. You don't NEED added K in veg.....Botanicare makes a Silica with only .5 K and that's the one I use for just that reason.
.
Click to expand...
botanicare silica blast
0.5% potassium
2.0% Silicon (Si) from Sodium Silicate and Potassium Silicate.

dyna-gro pro-tekt
3% potassium
7.8% silicate
oops silicate is 53% oxygen so its only 3.67% Si still a better buy and no Na

botanicares silicate only has less K in it because its 4 times less concentrated and contains both K sil and NA sil.
you really want extra sodium ions floating around in your resevoir?
 
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*SeeDLinG*

*SeeDLinG*

Member
ok,easy solution. Does look like it could be nitrogen given the the widespread yellowing. One of the pics though, the leaves had green veins with yellow in between, which is magnesium. General Hydroponics has a 'micro' nute thats something like a 5-0-1..thats probably wrong but the idea is that it's a decent source of nitrogen plus it has all of your micros. I would look for something in that ballfield and start maybe half strength. You dont want to shock em! The effected growth will keep that appearance so just monitor new growth. Also, I would NOT foliar with verde, it is derived from urea(NH2) an unusable form of nitrogen to plants. It must first be processed by microbes in the soil to be able to be absorbed. So spraying it on the leaves is doing nothing but adding salt and humidity. Hope this helped some!
Happy growing!
 
Breezee77

Breezee77

Active Member
oxanaca said:
botanicare silica blast
0.5% potassium
2.0% Silicon (Si) from Sodium Silicate and Potassium Silicate.

dyna-gro pro-tekt
3% potassium
7.8% silicate
oops silicate is 53% oxygen so its only 3.67% Si still a better buy and no Na

botanicares silicate only has less K in it because its 4 times less concentrated and contains both K sil and NA sil.
you really want extra sodium ions floating around in your resevoir?
Click to expand...
Are you saying I'm better off with the stuff I already have? I also have General's silica... Is that any better?

*SeeDLinG* said:
ok,easy solution. Does look like it could be nitrogen given the the widespread yellowing. One of the pics though, the leaves had green veins with yellow in between, which is magnesium. General Hydroponics has a 'micro' nute thats something like a 5-0-1..thats probably wrong but the idea is that it's a decent source of nitrogen plus it has all of your micros. I would look for something in that ballfield and start maybe half strength. You dont want to shock em! The effected growth will keep that appearance so just monitor new growth. Also, I would NOT foliar with verde, it is derived from urea(NH2) an unusable form of nitrogen to plants. It must first be processed by microbes in the soil to be able to be absorbed. So spraying it on the leaves is doing nothing but adding salt and humidity. Hope this helped some!
Happy growing!
Click to expand...
Does anyone know what General Hydroponic's he is talking about? Should I use only that and don't mix anything else??? What EC would you use? The tap water is .6 EC
 
Breezee77

Breezee77

Active Member
Is it Flora Nova Grow?

Analysis:

Total Nitrogen (N)....................................7.0%

0.9% Ammoniacal Nitrogen
6.1% Nitrate Nitrogen
Available Phosphate (P2O5).....................4.0%
Soluble Potash (K2O)..............................10.0%
Calcium (Ca).............................................4.0%
Magnesium (Mg)......................................1.5%
1.5% Water Soluble Magnesium (Mg)
Sulfur (S)..................................................2.0%
2.0% Combined Sulfur (S)
Boron (B)................................................0.01%
Chlorine (Cl)...........................................0.01%
Cobalt (Co)...........................................0.002%
Copper (Cu)............................................0.01%
0.01% Chelated Copper (Cu)
Iron (Fe)....................................................0.1%
0.1% Chelated Iron (Fe)
Manganese (Mn)....................................0.03%
0.03% Chelated Manganese (Mn)
Molybdenum (Mo)...............................0.003%
Zinc (Zn)..................................................0.02%
0.02% Chelated Zinc (Zn)

Ingredients: Ammonium Molybdate, Ammonium Phosphate, Calcium Nitrate, Cobalt Sulfate, Copper EDTA, Iron DTPA, Iron EDTA, Magnesium Sulfate, Manganese EDTA, Potassium Borate, Potassium Nitrate, Potassium Phosphate, and Zinc EDTA.
 
O

oxanaca

Well-Known Member
Breezee77 said:
Are you saying I'm better off with the stuff I already have? I also have General's silica... Is that any better?
Click to expand...
GH silica is 4.7 % silica. their all the same it just breaks down to cost per gram of silica

i use pure powdered pottassium silicate at 0.6 grams per gallon
 
O

oxanaca

Well-Known Member
Breezee77 said:
Is it Flora Nova Grow?

Analysis:

Total Nitrogen (N)....................................7.0%

0.9% Ammoniacal Nitrogen
6.1% Nitrate Nitrogen
Available Phosphate (P2O5).....................4.0%
Soluble Potash (K2O)..............................10.0%
Calcium (Ca).............................................4.0%
Magnesium (Mg)......................................1.5%
1.5% Water Soluble Magnesium (Mg)
Sulfur (S)..................................................2.0%
2.0% Combined Sulfur (S)
Boron (B)................................................0.01%
Chlorine (Cl)...........................................0.01%
Cobalt (Co)...........................................0.002%
Copper (Cu)............................................0.01%
0.01% Chelated Copper (Cu)
Iron (Fe)....................................................0.1%
0.1% Chelated Iron (Fe)
Manganese (Mn)....................................0.03%
0.03% Chelated Manganese (Mn)
Molybdenum (Mo)...............................0.003%
Zinc (Zn)..................................................0.02%
0.02% Chelated Zinc (Zn)

Ingredients: Ammonium Molybdate, Ammonium Phosphate, Calcium Nitrate, Cobalt Sulfate, Copper EDTA, Iron DTPA, Iron EDTA, Magnesium Sulfate, Manganese EDTA, Potassium Borate, Potassium Nitrate, Potassium Phosphate, and Zinc EDTA.
Click to expand...
ill bet your plants will green right up if you use this and abondon the foxfarm

the ratios seem reasonable for cannabis as well.you mey need some cal mag depending on how much calcium is in your water or maybe just some epsom salts(magnesium sulphate) ill bet this would work well for flowering as well
K:Ca:Mg 7.5:3:1
K:N 1.5:1
K:Ca 2.5:1
 
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Breezee77

Breezee77

Active Member
oxanaca said:
ill bet your plants will green right up if you use this and abondon the foxfarm

the ratios seem reasonable for cannabis as well.you mey need some cal mag depending on how much calcium is in your water or maybe just some epsom salts(magnesium sulphate) ill bet this would work well for flowering as well
K:Ca:Mg 7.5:3:1
K:N 1.5:1
K:Ca 2.5:1
Click to expand...
Thanks! still new to this...

K:Ca:Mg 7.5:3:1
K:N 1.5:1
K:Ca 2.5:1

Not sure exactly what this means? What about the EC level? Tap water here is .6 EC
 
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