What's new

how much extra cal mag do ogs like?

H

HemperorsKnight

Shit this would explain my platinum banana og kush bx1 and why she's so god damn stubborn all my other plant's are fine the alien kush the gsc bc1 f2 the legend og bc1 f1 and the lime kush s1 just having problems with the platinum banana og and after reading this thread I think I know where I went wrong thanks everyone
 

jidoka

Active member
Y'all might wanna ask if Ca or Mg tied up with bicarbonate ever becomes available to the plant

Edit...if it does please show me the chemical equation
 

jidoka

Active member
If ya wanna get all technical chlorophyll is 1 Mg and 4 N. if a plant needs mg it:a) has too much n already or b) also needs n

Cmon now...chemistry will not be denied
 

bsgospel

Bat Macumba
Veteran
^ I'm with you - I should have included the N in my note and stressed that K can suppress the Mg or keep it from being available. The K can be seemingly fine while Mg builds up in the background. N observed, not blowing up the Cal or K to compensate.
 

stoney917

i Am SoFaKiNg WeTod DiD
Veteran
Wow who would of thought! Thanks a ton guys, yeah the water out here is very hard. I will try and just use the base nutes and no calmag unless the plants start asking for it.

The plants were just transplanted into 3 gallon smart pots. Each clone is about 1-2" in height ( smallest I've ever gotten) . Feeding at 500 ppm with the tap being 380 ppm to start with. Do you guys think it would be smarter / better if I just got an Ro filter system , or is it fine using this water ? (I feel like it's too hard) Some guy told me that you should subtract half of the tap waters ppm when adding up your total ppms ( nutes and all) , anybody hear this before?


Dude I'm gonna give you some advice... a grow that size GET RO !!!!! DON'T FUK AROUND!!!!! tap water tends to be inconsistent.... yes you may be able to use it at 300 but one day it may be 4-500 ... if you were<100 @ start be different but the smart thing to do is take all that instability out start at 0 and give them everything. That way you know exactly what they have available..... it's hard to believe that a grow that size was even started without ro or a detailed water analysis report....
 

GreaseGardens

New member
Dude I'm gonna give you some advice... a grow that size GET RO !!!!! DON'T FUK AROUND!!!!! tap water tends to be inconsistent.... yes you may be able to use it at 300 but one day it may be 4-500 ... if you were<100 @ start be different but the smart thing to do is take all that instability out start at 0 and give them everything. That way you know exactly what they have available..... it's hard to believe that a grow that size was even started without ro or a detailed water analysis report....
You're telling me brotha.. haha I wish I had the power to change it to ro, trust me if I did it wouldn't have ever been this issue. But unfortunately I'm not in control of this and have to use what I have been dealt with.. I know there will be fluctuations and I will have to accommodate to it and hopefully (they) can see that we do indeed need ro.
On a better note, thanks for all the replies and info from everyone. The ladies are starting to look better and show some new
Growth. My dehus and ac's create some ro water which I then mix into tap making it 180 total ppms. I added 2ml/gal of camg to this mix and they seem to like it. Feeding at 450 ppms, will bump them up as soon as I see them ask for more. We turned off every other light to help them out, temps and rh are at 77&75. They're enjoying life, but I feel like they could be doing better. Maybe this can be due to not having any root product..just guessing.. either way. Here is some pictures :tiphat:
 

Attachments

  • IMG_0207.jpg
    IMG_0207.jpg
    100 KB · Views: 64
  • IMG_0204.jpg
    IMG_0204.jpg
    72.8 KB · Views: 61
  • IMG_0206.jpg
    IMG_0206.jpg
    70.9 KB · Views: 64

Rondon

Member
Expensive operation to not have all the details (Especailly water quality) hammered out before a light or air conditioner even gets bought much less turned on.
 

ReprobateMind

Active member
Does OG Kush need more calcium in soil grows? I have some Loompa's Headband x Triangle Kush in flower and I'm considering adding a one tablespoon top dress to the top of my pots and scratching it in. However, they are not showing any signs of needing calcium at this time. My soil mix already has two tablespoons of powdered Dolomite Lime per gallon of soil. The plants have been in the soil for 49 days since I transplanted them. Should I just wait to see if a deficiency shows? I don't have any cal mag and I'd rather not buy any if I don't have to.

My base soil is:
5 gallons of Sunshine Mix #4 (already contains some lime)
2 gallons of Earthworm Castings
3 gallons of Perlite
2 tbsp of powdered dolomite lime per gallon
2 tbsp of Down to Earth 3-3-3 Seed Starter Mix per gallon

Subcool's Super Soil in the bottom 3 inches of each 5 gallon pot.

It's a 12 week strain and the Super Soil will run out after a while. I'll probably top dress some Down To Earth 4-6-2 all purpose on week 7 of flower. It's starting Week 6 tomorrow.
 

Attachments

  • LHBxTK_canopy (1).JPG
    LHBxTK_canopy (1).JPG
    1.6 MB · Views: 13
  • LHBxTK_canopy (2).JPG
    LHBxTK_canopy (2).JPG
    1.1 MB · Views: 13

I Care

Well-known member
get some neptunes kelp in there too or something else with a little sulfur, mag and potash. whenever is clever if you got nothing new on em in the last month and a half
 

ReprobateMind

Active member
get some neptunes kelp in there too or something else with a little sulfur, mag and potash. whenever is clever if you got nothing new on em in the last month and a half

Should I add one tablespoon of Oyster Shell Flour to the top of each pot with the kelp? Do I even need kelp? The top dress I plan on using has kelp in it already. Maybe using a mild EWC tea each watering will add enough calcium?

Here are the specs for the DTE All Purpose 4-6-2 https://downtoearthfertilizer.com/products/blended_fertilizer/all-purpose-4-6-2/


TOTAL NITROGEN (N) 4.0%
0.4% Water Soluble Nitrogen
3.6% Water Insoluble Nitrogen
AVAILABLE PHOSPHATE (P2O5) 6.0%
SOLUBLE POTASH (K2O) 2.0%
CALCIUM (Ca) 8.0%
MAGNESIUM (Mg) 1.0%
SULFUR (S) 2.0%


Derived from:
Fish Bone Meal, Blood Meal, Feather Meal, Alfalfa Meal, Rock Phosphate, Langbeinite and Kelp Meal


ALSO CONTAINS NON-PLANT FOOD INGREDIENT(S):
2.5% Humic Acids derived from Leonardite
Listed by the Organic Materials Review Institute (OMRI) for use in organic production.
 
Last edited:

I Care

Well-known member
You don’t need kelp and I was unaware you are covered by down to earth on sulfur and calcium, little richer in potassium is the reason I use neptunes edit: as supplemental for top dressing In ground.
 

I Care

Well-known member
you won’t need it with the all purpose, I think that all purpose is lacking potash. With what you’ve already got.. was thinking.. blend what you’ve got with starter blend balance it out. Starter and bloom together.

BUT..
On second thought, you can put it in your water unsulphured or blackstrap molasses for the micros and potash. Also feeds microbes.


this is relating to daily values for an animal species, but represents the value of molasses to organizms
IMG_1069.png


again, I don’t see that your feed is lacking calcium only that I would use a method for improving upon soluble potash (K)

If you haven’t used molasses before, you’ll be thoroughly satisfied!
 

I Care

Well-known member
To add, my guess is you like to reuse your soil so when you scratch in that all purpose, water in with full strength which is that 1tbs/gal or 5g/L. Then come back with it about half dose of that in between the dress and the finish.
 

PlastikeRubba

New member
I think you missed the main point I was trying to make...
You don't have a Ca/Mg issue...
You either have a Ca issue or you have a Mg issue.
It's about balance because these two elements are antagonists to each other & compete for -charges to attach to within the soil matrix.

I think all growers missed the point.

Cal-mag was invented, as a concept, after a gord farmer destroyed 8 acres of pot by insisting that adding Manganese to the soil would fix our powdery mildew problem. It killed the plants along with the mildew, slowly and steadily.

The strain being grown, as with any decent Cannabis variety, hyper accumulated Manganese in its root stalk and leaf tissue. Through trial and error it was found which combination of inputs would restrict the crop from taking up toxic levels of Manganese from the soil.

Now able to recognize this distinct problem in other people's crops which can look like Mn induced "Fe deficiency" , Mn induced "Ca deficiency" , Mn induced "Mg deficiency", etc, we spread the word. Except we did not want to give the competition an edge. So we left out a few things. Ever heard a pot grower mention Mn:Mg:Fe ratios? Nope only Ca:Mg.

The failed growers who started all the weed fertilizer companies took what little knowledgeable they had and ran with it. Adding Calcium alone made Mn toxicity worse in prized strains. Adding Magnesium made it better. But adding both at the same time completely prevented Mn over-accumulation, the most mysterious of leaf symptoms, that gets blamed on everything except what it is. Every pot grower on the internet defines lower leaf spotting as Calcium deficiency, even though they know Calcium is not mobile and cannot be pulled from those areas. Unless your the cult of Slownickle, with your calcium shelf mythology.

Botanicare added Fe back to the Calmag equation. Every decent hydro formula added ammonia to prevent nitrate from synergizing Mn. None of them simpley reduced Mn. I'm not sure when the B Zn Cu Ni Mo will show up, every time it does Mn is tagging along. All these fertilizer companies seem to have kitted orders assembled for them by Yara, with rather random ass trace mineral packs thrown in, that are for whatever reason not bottled with the CaMg+ portion. So we have a scene where every trace mineral deficiency is called nitrogen toxicity, nute tip burn, light burn, heat burn, mutation, stress, etc and Mn toxicity is called "calmag deficiency"


I've seen too many growers mock kids over the "needs calmag" thing, while they are actually the dumbasses.


Speaking of dumbass..



WaxyTaxi said:


Kev mentions that most kushes including OG and even GG4 are actually magnesium hungry and are lighter feeders...

Hmm?


He also said Zinc because he can't tell the difference, and you were staring at his deficient plants if you watched that video, so obviously he just makes shit up. Unqualified dope peddler. I bet his SFV didn't even smell like he described it. That guy has no nose for quality.
 
Top