Jacks 321 Elemental ppm numbers?

felis

New Member
Guys,
I'm trying to figure this out but it's a struggle.
Can someone please tell me what the "elemental" ppm numbers are for Jacks 321 when mixed at their recommended strength of;

3.7 grams Part A
2.5grams Part B
1.1 grams of Epsom salts

Per gallon of water.

I would like to know the ppm value for each; N. P, K, Cal, Mag.

Thanks.
 

Forage

Well-Known Member
Numbers on the bag are for P2O5 and K2O. To convert P2O5 to P, divide by 2.29. To convert K20 to K, divide by 1.21.

If you measure your stuff as "grams per 10 liters", ppm is straight multiplication of grams by the N-P-K (10 grams of 2-0-0 in 10 liters of water would give you 20ppm nitrogen). Although simplifying multiplication isn't that impressive if you're using a spreadsheet.
 

Delps8

Well-Known Member
Guys,
I'm trying to figure this out but it's a struggle.
Can someone please tell me what the "elemental" ppm numbers are for Jacks 321 when mixed at their recommended strength of;

3.7 grams Part A
2.5grams Part B
1.1 grams of Epsom salts

Per gallon of water.

I would like to know the ppm value for each; N. P, K, Cal, Mag.

Thanks.
Hot off the press…

I have a grow just now going into veg and I'm using 3-2-0. Water source is RO. There's a good amount of Mg and S without the Epsom but it's handy in case I need to add it.

BTW, I'm new to Jack's having used Botanicare Kind for my two other grows. I'm still using SilicaBlast but have ditched the other stuff - PureBlend Tea, Rhino Blast, etc. I'll use up what I've got left but, after that, plans are to go with Jack's.

Capto_ 2022-04-02_08-35-29_PM.png
 
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