Capn-Crunch
Well-Known Member
I seem to be having issues with a couple strains using Jacks.
Wondered what strength everyone is using?
Wondered what strength everyone is using?
Jacks 321 Feeding Strength
- Thread starter Capn-Crunch
- Start date
homebrewer
Well-Known Member
You should at the EC that has worked for you in the past.
Capn-Crunch
Well-Known Member
I'm trying to get a general idea what everyone else is using
homebrewer
Well-Known Member
What everyone else is doing in their gardens means very little in your garden. Their wattage, their environment, their feeding frequency, their varieties, will all affect how much they feed. Feed at the same EC that has worked for you in the past.
Capn-Crunch
Well-Known Member
You don't seem to get that the info I'm looking for is a consensus from Jacks users.
smokebros
Well-Known Member
I use Jacks 321 at full strength from start to finish.
3.6 grams per gallon of jacks
2.4 grams per gallon of cal-nit
1.2 grams per gallon mag sulfate
I also add .40 grams per gallon of Fulvic Acid, .6ML per gallon of Orca and .6ML per gallon of Mammoth P.
I've experimented with Jacks 321 at 1/2 strength, eventually ran into issues when the plants got large. Switched to full strength from start to finish and haven't looked back.
Also I just want to shout out to homebrewer, dude has been helping people for years here on RIU. I know he wasn't trying to be snarky or anything.
Capn-Crunch
Well-Known Member
Thank you for the reply. I was using it 1/2 strength as well and the same thing happened.
I also think it was made worse because I veg with led.
Do you feed with full strength and fulvic at every watering?
smokebros
Well-Known Member
Yes, every watering. But my plants grow on a flood and drain table. When I did drain to waste I still used full strength but no fulvic acid (because I didn't have it at the time).
I am the belief that LED's just demand a lot more from the plants. People run into lots of deficiencies and it seems like it's because they can't keep up with what their plant is demanding. Once I switched to full strength all that went away.
Capn-Crunch
Well-Known Member
Thanks again
I just started using Jacks this winter, but was skittish about using at full strength for fear of burn. Plants got worse over time.
I'm growing in Promix peat. 4 leds and 2 mh/hps lights. It's only showing up in the plants under led.
Have a good one smokebros
I just started using Jacks this winter, but was skittish about using at full strength for fear of burn. Plants got worse over time.
I'm growing in Promix peat. 4 leds and 2 mh/hps lights. It's only showing up in the plants under led.
Have a good one smokebros
Purpsmagurps
Well-Known Member
I always do the 3/2/1 but I start at 150ppms working my way up to 600 near flip.
Capn-Crunch
Well-Known Member
I seem to be having issues running at 400ppm so I'm going to go to full strength.
xtsho
Well-Known Member
McFrosticles
Well-Known Member
What does your e.c come out at with just the jacks, do you test before adding the other stuff? I've been using 3.6/2.4/1.2 with silica 1ml per litre and rhizo 4ml per litre. EC is 1.5 but have some yellow spotting on leaves.
smokebros
Well-Known Member
Can you post some pictures? EC comes out to about 1.7 at full strength. Have you double checked your scale and all the random environment variables?
rkymtnman
Well-Known Member
is that based on RO water?
have you ever calculated the actual ppms of Jacks321? NPKCaMg??
smokebros
Well-Known Member
Yeah, I use RO water. So just jacks 321 should come out to 1.4 based on the elemental breakdown. I have other inputs going on so I quickly quoted my current EC not realizing that.
smokebros
Well-Known Member
Right now I'm using hydroton (recirculating) on a flood and drain table. I've ran it in coco recirculating and soil drain to waste. Haven't ran it in coco drain to waste.
Full strength from start to finish. As soon as they pop through the surface of the soil/medium, they get the same recipe from start to finish.
Full strength from start to finish. As soon as they pop through the surface of the soil/medium, they get the same recipe from start to finish.
rkymtnman
Well-Known Member
thanks so much. i've been curious about the Jacks recipe. appreciate all the data.
smokebros
Well-Known Member
No problem man. I also use fulvic acid at .4 grams per gallon. Here's a link : https://customhydronutrients.com/index.php?main_page=product_info&products_id=425