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A question for the growers using Jacks 5-12-26

mdgg4

Active member
Small volume measuring: Combine 1 tsp. per gal. ≈ 150 ppm N. Follow these steps to obtain a precipitate free solution. This product is part of a 2-step formulation. It must be used in combination with soluble Calcium Nitrate 1. Dissolve 1.3 oz. (2 tbsp.) of 5-12-26 in 10 gal. of final feed solution. You will obtain the following elemental PPM concentrations: Element N P K Mg SO4 Fe Mn Zn Cu B Mo PPM 50 52 215 63 246 3 .50 .15 .15 .50 .10 Mix this solution very well, then proceed to step 2. 2. Dissolve 0.86 oz. (approx. 5 tsp.) of soluble Calcium Nitrate into the above 10 gal. solution. The mixture of Step 1 and Step 2 will produce a total nutrient concentration of 150 ppm N and 116 ppm Ca. E.C. at 150 ppm N=3.15 in pure or RO water Limit of Solubility=3 lb./gal.

These are Jack's directions as per manufacturer
 
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X

xavier7995

Thanks waxy. I thought I posted last night evidently not. I was wondering what the ec or gram ratio was there.

I bumped my calnit to almost 1:1 jacks : calnit. Plants really dig it in veg at least.
Did you lower the calnit ratio or increase md?

I run about the same ratio. During flower I decrease my calnit a bit to keep N levels on the lower end of things.
 

linky

Member
I know this has been discussed somewhere in this thread previously but anyone have the ratios to make a gallon of jacks concentrate? So I can use like 5-10 ml per gallon? Also the same for cal nit would be good too so i can make a gallon concentrate of that as well.

thanks all!
 

eric2028

Well-known member
Veteran
I know this has been discussed somewhere in this thread previously but anyone have the ratios to make a gallon of jacks concentrate? So I can use like 5-10 ml per gallon? Also the same for cal nit would be good too so i can make a gallon concentrate of that as well.

thanks all!

880 grams of jacks
580 grams cal/nit

With a gallon of ro or distilled water for each.
 

Trich_Tyson

Active member
880 grams of jacks
580 grams cal/nit

With a gallon of ro or distilled water for each.

Also worth noting for first timers that you need a vessel greater (much greater is easier) than 1 gallon to mix.. my first time I quickly realized this when I added my water back into my distilled water jug and couldn't fit all of it. Came out strong of course.

The jug of jacks gets pretty hot and funny smelling when you mix it. So I now make quart batches and mix in a half gal ball jar. I store it in quart jars and have screw on pour caps.

Don't forget to measure using ec ;)
 

eric2028

Well-known member
Veteran
Does anyone have an opinion of adding silicate to jacks 321? In comparison my ionic nutrients with silicate seem to have stronger branches then just the jacks.
 

Trich_Tyson

Active member
Does anyone have an opinion of adding silicate to jacks 321? In comparison my ionic nutrients with silicate seem to have stronger branches then just the jacks.

I use it. A mil per gal. Primarily for ph. Secondly to boost k just a bit and lastly for the silica. I have strong branches and dense buds. But idk what happens if I skip it.

I use agsil made into a stock solution
 

eric2028

Well-known member
Veteran
I'm noticing a lime green overall plant color with jacks 321 ratio. I'm use to a darker healthy green. Is anyone else running into this? This is week 4 of veg just flipping to bloom. Vegged under hid lighting.
 

mdgg4

Active member
I'm noticing a lime green overall plant color with jacks 321 ratio. I'm use to a darker healthy green. Is anyone else running into this? This is week 4 of veg just flipping to bloom. Vegged under hid lighting.

Go back and read my last post, gaurantee you won't get yellowing if you use those ratios. Had same prob when first started using Jacks played around with different ratios.

1tbs per 5gal Jack's 5-12-26
3tsp per 5gal calcium nitrate
DONE!

PEACE!
 
X

xavier7995

Go back and read my last post, gaurantee you won't get yellowing if you use those ratios. Had same prob when first started using Jacks played around with different ratios.

1tbs per 5gal Jack's 5-12-26
3tsp per 5gal calcium nitrate
DONE!

PEACE!

...don't 3 tsp equal 1 tbl? I do concur though, equal parts by volume is the way to go in veg.
 

eric2028

Well-known member
Veteran
Go back and read my last post, gaurantee you won't get yellowing if you use those ratios. Had same prob when first started using Jacks played around with different ratios.

1tbs per 5gal Jack's 5-12-26
3tsp per 5gal calcium nitrate
DONE!

PEACE!

Do you run this 1:1 ratio all the way through both veg and flower? Do you know how it breaks down with ec by chance?
 

Trich_Tyson

Active member
Third vote in favor of equal parts (by ec or weight imo) for veg. Darker growth and if you miss a feeding you won't get a massive fade
 

eric2028

Well-known member
Veteran
Go back and read my last post, gaurantee you won't get yellowing if you use those ratios. Had same prob when first started using Jacks played around with different ratios.

1tbs per 5gal Jack's 5-12-26
3tsp per 5gal calcium nitrate
DONE!

PEACE!

Jacks tbs=21 grams
Calnit tbs=17.5 grams

Quite abit more then 321 weight wise. I ll give it a try tho thanks!
 

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