Jack's 321 Questions

C

CannaCountry

Well-Known Member
Gno702 said:
Question for you are you still running Jack's hydro ?? And are you still putting the mkp in ? And at how much are you putting in grams per gallon ?
I'm running at 3.6 Jack's
2.4 cal nit
1.2 Epsom
I'm at day30 anyways curious when to switch was thinking of running
2 g of Jack's
2 g cal nit
2 g Epsom
1.2 m. K. P
.5 most trace
Anu help would greatly appreciated
Click to expand...
At more than 4 weeks in, I would be careful adding new fangled approaches. I would have made this switch earlier on, by running it the first 2-3 weeks and then going back to your standard 3.2.1 ratio. Consider what your plant is trying to do and the why behind it...steady goes the course friend.
 
Renfro

Renfro

Well-Known Member
Gno702 said:
Question for you are you still running Jack's hydro ?? And are you still putting the mkp in ? And at how much are you putting in grams per gallon ?
I'm running at 3.6 Jack's
2.4 cal nit
1.2 Epsom
I'm at day30 anyways curious when to switch was thinking of running
2 g of Jack's
2 g cal nit
2 g Epsom
1.2 m. K. P
.5 most trace
Anu help would greatly appreciated
Click to expand...
So I ran the numbers and here is what I got

Here is your current jacks mix:
jacks-1.PNG

Here is the proposed mix:

jacks-mkp.PNG

I'm liking it. That added phosphorous should give you better yields.
 
arctic farmer

arctic farmer

Active Member
hmmm, Why don't my number match yours - I'm running v2.04 of your spreadsheet. Even for 321 (3.6,2.4,1.1) the numbers are different.

a.JPG

b.JPG

Thank you for building this ss - it is really helpful
 
icetech

icetech

Well-Known Member
Arctic, just curious.. from your chart it looks like you are running jacks 1-1-1 not 3-2-1? why is that? And did you actually notice a difference by adding phos?
 
arctic farmer

arctic farmer

Active Member
Well, I was just putting in numbers from the above post - ie; jacks at 2-2-2 and MKP 1.2 and Most at .5, it should have looked like @Renfro 's?

I use basic 3.6-2.4-1.1 until about week 2 then I want to drop the N, and maybe increase the P but I'm not sure how yet. I get some N tip burning and curl even at low rates when I drop down to something like 2-1-1 but then the Ca is to low also not to mention the P.

My interest is a way to increase the P and drop the N (maybe with N <60PPM) from Jacks 3.6-2.4-1.1 after week 2.5.

does that make sense?
 
icetech

icetech

Well-Known Member
arctic farmer said:
Well, I was just putting in numbers from the above post - ie; jacks at 2-2-2 and MKP 1.2 and Most at .5, it should have looked like @Renfro 's?

I use basic 3.6-2.4-1.1 until about week 2 then I want to drop the N, and maybe increase the P but I'm not sure how yet. I get some N tip burning and curl even at low rates when I drop down to something like 2-1-1 but then the Ca is to low also not to mention the P.

My interest is a way to increase the P and drop the N (maybe with N <60PPM) from Jacks 3.6-2.4-1.1 after week 2.5.

does that make sense?
Click to expand...
Makes sense.. i was just wondering., i'm too lazy for all of that.. i run 3g-2g-1g and end up around 800ppm from start to finish.. cause easy :) i found 3.4g a bit hot for dwc (which is what i use)
 
TintEastwood

TintEastwood

Well-Known Member
Here's some Jacks nute profiles. Some I copied from interwebs and put into a view what works for me.

Disclamer: I qualify, possible errors, for sure not as accurate as @Renfro ppm calc tool. Always open to constructive.

Jacks-Formulas-standard.png

Jacks-Formulas-interwebs.png

My first Jacks run - headed into week 8 with these cocktails on tap.
Jacksk-Tinted7plus.png

So you know. Below are values for a single (1) gram/ml as I entered them. (!common for ME to have errors in N type calcs)
Jacks-1-column-values.png
 
Last edited:
arctic farmer

arctic farmer

Active Member
I'm in coco, 3gal and three watering a day in late flower. Do you get burning and such after week 2? Mostly its gg#4 and blue dream, both need more ca and less N. I've gone as low as 550 (my water is 130ppm .500 scale) but then ca is really short.
 
G

Gno702

Member
TintEastwood said:
Here's some Jacks nute profiles. Some I copied from interwebs and put into a view what works for me.

Disclamer: I qualify, possible errors, for sure not as accurate as @Renfro ppm calc tool. Always open to constructive.

View attachment 4405773

View attachment 4405774

My first Jacks run - headed into week 8 with these cocktails on tap.
View attachment 4405775

So you know. Below are values for a single (1) gram/ml as I entered them. (!common for ME to have errors in N type calcs)
View attachment 4405788
Click to expand...
Question boss ? What formula are you running exactly for bloom? are you switching it up any time in bloom any speific weeks?
 
G

Gno702

Member
arctic farmer said:
Well, I was just putting in numbers from the above post - ie; jacks at 2-2-2 and MKP 1.2 and Most at .5, it should have looked like @Renfro 's?

I use basic 3.6-2.4-1.1 until about week 2 then I want to drop the N, and maybe increase the P but I'm not sure how yet. I get some N tip burning and curl even at low rates when I drop down to something like 2-1-1 but then the Ca is to low also not to mention the P.

My interest is a way to increase the P and drop the N (maybe with N <60PPM) from Jacks 3.6-2.4-1.1 after week 2.5.

does that make sense?
Click to expand...
Could you just add a water soluable phosphorus
 
icetech

icetech

Well-Known Member
BTW.. since we are talking jacks.. anyone got any tricks to get it to dissolve faster? I grind all 3 elements in a coffee grinder to turn them more into dust. but still takes awhile.
 
TintEastwood

TintEastwood

Well-Known Member
icetech said:
BTW.. since we are talking jacks.. anyone got any tricks to get it to dissolve faster? I grind all 3 elements in a coffee grinder to turn them more into dust. but still takes awhile.
Click to expand...
My only trick is to get it dissolved before I need it. Hours to days ahead of time.

I fill a mason jar 3/4 full and stir in the Part A then set is aside.

In a different jar I do the same with Part B cal-nit.

I use 2 sets of mason jars.

And I cheat a lil with a magnetic stirrer from Amazon at times.

20190917_141539.jpg
 
icetech

icetech

Well-Known Member
TintEastwood said:
My only trick is to get it dissolved before I need it. Hours to days ahead of time.

I fill a mason jar 3/4 full and stir in the Part A then set is aside.

In a different jar I do the same with Part B cal-nit.

I use 2 sets of mason jars.

And I cheat a lil with a magnetic stirrer from Amazon at times.

View attachment 4406422
Click to expand...

well... i should have just thought of that :) I am bad at planning ahead.
 
R

Ryante55

Well-Known Member
icetech said:
BTW.. since we are talking jacks.. anyone got any tricks to get it to dissolve faster? I grind all 3 elements in a coffee grinder to turn them more into dust. but still takes awhile.
Click to expand...
You are dissolving in the correct order right? Hydro then Epsom then nitrate? Using warm water helps but isn't necessary
 
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