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

[clown baby]

I'm not sure why people are saying not to measure jacks and calcinit by weight?

The instructions on the label tell you to add by weight....
From the label:
"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."

1.3oz jacks to 0.86 oz calcinit.
That's 3:2 by weight. You guys are saying that's wrong? Granted, I guess there is no "right and wrong," just different feed profiles. But it seems weird that people are saying to go 3:2 by meter readings versus by weight, which is clearly stated on the label.

 

[caljim]

Thanks for clearing that up.

Looking at my numbers I'm mixing Calnit @ 84% of Jacks weight to meet the 1:67 by ppm ratio.

 

[Hookah79]

I am using 2.25 grams jacks to 1.5 grams cal nit.

.67 of 2.25 grams comes to 1.5.Works for me, no epsom salts added because of my tap coming in @150 ppm.Jacks also has some magnesium.

I also dissolve 880 grams of jacks ,and 580 grams of cal nit per 1 gal of distilled water for my plants in veg in a separate room,which also works for me.I got that from Ichabod earlier on this thread.

I ran into problems earlier in veg but that was on me for not watering more.Best bang for the buck ,no doubt.Still would like to get a water analysis in case i missed something.

 

[SuperWeed]

No word from Krystal about Si as of yet. She said she was coming into the "busy season."

 

[Ymir]

No word from Krystal about Si as of yet. She said she was coming into the "busy season."

That was answered on the last page or maybe 1 more back. She said there is no silica in Jacks.

For what it's worth I've been using the AgSil 16 @ around .5 grams per gallon which yields 35ppm K and 33ppm Silica. I haven't noticed any amazing results compared to every other grow without it but I also haven't seen anything negative. I was hoping for magically thicker stalks like people claim but can't say there's any difference at all.

 

[caljim]

I really dont get the silica hype, when I moved to Jack's the stems of plants I had grown for years on 6/9 were significantly thicker. Just Jack's and Calnit....dont believe the hype. Put that silica money into gold, the return will be better.

 

[agent dank]

Whats everyones opinion on MKP with Jacks? And reducing calcium nitrate in place of calcium chloride in flower?

Not sure if its strain but my buds arent getting as fat as they normally do

 

[maxmurder]

laughing at myself today mixing up one of the last rez's with the rest of micro/bloom/calmag - the harder I try NOT to spill/splash the micro it always ends up making a fucking mess, usually a few drops on a clean light colored shirt, looks just like blood when dry, shirt ruined fo sho.
I WILL NOT MISS YOU MICRO YOU GREASY ASS SHIT!!!
hello jr peters

 

[Miraculous Meds]

laughing at myself today mixing up one of the last rez's with the rest of micro/bloom/calmag - the harder I try NOT to spill/splash the micro it always ends up making a fucking mess, usually a few drops on a clean light colored shirt, looks just like blood when dry, shirt ruined fo sho.
I WILL NOT MISS YOU MICRO YOU GREASY ASS SHIT!!!
hello jr peters

Yeah, micro always had a slight thickness to it. Id always have to wipe the bottle off every time I used it. Im looking forward to the switch myself. I still need to get a sealed container for when I open the cal nit, as ichy has explained to me that it will absorb moisture and throw off ur dry weights if not.

 

[Budley Doright]

I heard from Kev at wonderland that kushes and OGs, even GG4 all need more magnesium .

I had this stuff at the shop called "Magnum" by Humboldt countys own and figured I'd give it a shot.

Also read somewhere that these kushes and OGs are light feeders so I mixed a separate bucket and diluted my regular mix of 600ppms down to 450-500 and added about 2.5-3ml of the Magnum to that bucket and put a sticker on it that says "light mix"

Tangie, cherry pie, sky lotus, soul mate, johnny sunshine, all take the regular mix just fine. I've had many other strains do just fine with it. But I've noticed purple stems and odd leaves on the fire og, GG4, pre98 bubba, & OGKB 2.0.

I just fed those all the light mix and might foliar some mag on them to get them in shape.

Ive never had the opinion that red stems were an indication of magnesium def.... magnesium is translocatable in the plant and the classic sign is interveinal chlorosis.....

I dont get that..... but Im also using tap water.. which adds additional magnesium....

 

[clown baby]

I heard from Kev at wonderland that kushes and OGs, even GG4 all need more magnesium .

I had this stuff at the shop called "Magnum" by Humboldt countys own and figured I'd give it a shot.

Also read somewhere that these kushes and OGs are light feeders so I mixed a separate bucket and diluted my regular mix of 600ppms down to 450-500 and added about 2.5-3ml of the Magnum to that bucket and put a sticker on it that says "light mix"

Tangie, cherry pie, sky lotus, soul mate, johnny sunshine, all take the regular mix just fine. I've had many other strains do just fine with it. But I've noticed purple stems and odd leaves on the fire og, GG4, pre98 bubba, & OGKB 2.0.

I just fed those all the light mix and might foliar some mag on them to get them in shape.

at $35 a gallon, i really hope that add something other than magnesium sulfate and a colorful label to that magnum product. Try epsom salts when you run out. Same active ingredient, and it only cost $4.99 for 6 lbs at target. The label doesnt look as cool, though.

 

[BillFarthing]

Can someone double check me?

1 gallon tap water, 3 grams Jacks, 1 gram epsom, 2 grams calnit

372 original tap water PPM (0.75 EC)
962 after adding Jacks (1.9 EC)
1087 after adding epsom (2.2 EC)
1471 after adding calnit (2.9 TOTAL EC, 2.2 from ferts)

The tap water EC is going to be constant, so if I dillute it to 5 gallons, that would put me at ~1.2 EC. Correct?

 

[Hookah79]

Your tap most likely has enough magnesium.If it was me i wouldn't add epsom salts.

 

[BillFarthing]

[FONT=Arial, Helvetica, sans-serif]Let's try this again!

1 gallon tap water, 3 grams Jacks, 2 grams calnit

372 original tap water PPM (0.75 EC)
962 ppm after adding Jacks (1.9 EC)
1346 ppm after adding calnit (2.7 TOTAL EC, 1.9 from ferts)

The tap water EC is going to be constant, so if I dilute it to 4 gallons, that would put me at ~1.2 EC.[/FONT]

 

[Miraculous Meds]

[FONT=Arial, Helvetica, sans-serif]Let's try this again!

1 gallon tap water, 3 grams Jacks, 2 grams calnit

372 original tap water PPM (0.75 EC)
962 ppm after adding Jacks (1.9 EC)
1346 ppm after adding calnit (2.7 TOTAL EC, 1.9 from ferts)

The tap water EC is going to be constant, so if I dilute it to 4 gallons, that would put me at ~1.2 EC.[/FONT]

1.9ec, ÷4 gallons = .475ec
U want about 1.2ec every feed, unless ur in soil.

 

[caljim]

[FONT=Arial, Helvetica, sans-serif]Let's try this again!

1 gallon tap water, 3 grams Jacks, 2 grams calnit

372 original tap water PPM (0.75 EC)
962 ppm after adding Jacks (1.9 EC)
1346 ppm after adding calnit (2.7 TOTAL EC, 1.9 from ferts)

The tap water EC is going to be constant, so if I dilute it to 4 gallons, that would put me at ~1.2 EC.[/FONT]

My meter says your light on calnit.. use your meter and you will find that providing Calnit at 80% by weight in relation to Jacks will give you the desired ratio of 1 to .67, by ppm, Jacks to Calnit...make sure your salts are fully disolved and use your meter to prove it.

 

[Hookah79]

My 1st harvest with jacks.
2.25 jacks,1.5 cal-nit.900 ppm straight tap water.

 

[Treetroit City]

My meter says your light on calnit.. use your meter and you will find that providing Calnit at 80% by weight in relation to Jacks will give you the desired ratio of 1 to .67, by ppm, Jacks to Calnit...make sure your salts are fully disolved and use your meter to prove it.

Exactly what I found. I do 1100 grams and 880 grams per 4 liter jug. 10 ml's of this stock gets me 360 & 240 ppm.

 

[BillFarthing]

1.9ec, ÷4 gallons = .475ec
U want about 1.2ec every feed, unless ur in soil.

You have to add the hardness of the original water back to that number. We're talking Flint, MI quality water.

Exactly what I found. I do 1100 grams and 880 grams per 4 liter jug. 10 ml's of this stock gets me 360 & 240 ppm.

I like this solution much better instead of mixing each batch. Thanks for the numbers!

 

[Miraculous Meds]

You have to add the hardness of the original water back to that number. We're talking Flint, MI quality water.



I like this solution much better instead of mixing each batch. Thanks for the numbers!

I like the stock solution too.

No matter what ur water ec is, u still want to provide 1 to 1.2ec of base nutrients per feed in hydro/coir.