Jacks 321 Feeding Strength

What strength do you feed with Jacks 321

  • Full Strength

    Votes: 28 75.7%

  • 1/2 Strength

    Votes: 9 24.3%

  • 1/4 Strength

    Votes: 1 2.7%
  • Total voters
    37
icetech

icetech

Well-Known Member
I just started using jacks a few days ago.. the directions that came with it said 3g per gallon, but i see guys saying 3.6g is full str? is 3.6 correct? BTW.. my plants just went to flower a few days ago.. should i add anything or just 321 and stick with it? I have seen a few people say just 321 to harvest.. just double checking..
 
Capn-Crunch

Capn-Crunch

Well-Known Member
icetech said:
I just started using jacks a few days ago.. the directions that came with it said 3g per gallon, but i see guys saying 3.6g is full str? is 3.6 correct? BTW.. my plants just went to flower a few days ago.. should i add anything or just 321 and stick with it? I have seen a few people say just 321 to harvest.. just double checking..
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For me the 3.6 was a little too much, so I'm using exactly 3,2,1. It comes out around 800 ppm for me.
 
thenasty1

thenasty1

Well-Known Member
icetech said:
I just started using jacks a few days ago.. the directions that came with it said 3g per gallon, but i see guys saying 3.6g is full str? is 3.6 correct? BTW.. my plants just went to flower a few days ago.. should i add anything or just 321 and stick with it? I have seen a few people say just 321 to harvest.. just double checking..
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3.6 jacks, 2.4 CaNO3, 1.2 MgSO4 is full strength. 3:2:1 is the ratio of the components. if you want a lower ec, reduce the weight of each while maintaining a 3:2:1 ratio. some folks run 3.6, 2.4, 1.2 start to finish, some start lower and increase ec as they go. play with it a bit and determine what works best for your environment and genetics
 
icetech

icetech

Well-Known Member
thenasty1 said:
3.6 jacks, 2.4 CaNO3, 1.2 MgSO4 is full strength. 3:2:1 is the ratio of the components. if you want a lower ec, reduce the weight of each while maintaining a 3:2:1 ratio. some folks run 3.6, 2.4, 1.2 start to finish, some start lower and increase ec as they go. play with it a bit and determine what works best for your environment and genetics
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Ah ok.. mine actually said on the labels 3g/gal 2g/gal 1g/gal so i figured that was full str.. I come out around 800ppm using 3g/2/1 plants seem happy.. not gonna rock that boat:)
 
S

Scolwell19

Well-Known Member
I am using Jack's 321 at full strength currently on 3 different plants in dwc. 2 of the plants show signs of deficiencies or something going on with them on the large fan leaves. Any input would he helpful. I am at 5.8 ph with 250w quantum board leds. 20190411_081724.jpg 20190411_081711.jpg
 
arctic farmer

arctic farmer

Active Member
I run Jacks full strength in Drain to Waste, with 3 gal Coco cloth pots, feeding three times a day at 5.8 to 6.1 PH (1024 TDS on my bluelab). I mix Humic Acid https://customhydronutrients.com/humic-acid-concentrates-c-118_351_352/soluble-humic-acid-one-pound-p-463.html?zenid=suti8k6e69g8l75vipsgc5u2g5 in the res for the last day or so of the week before I mix a new reservoir (55 gal drum). The block coco I use does not get buffered enough (winter time, pia) so I run a bit of a mag deficiency but not enough that most people would notice. I hit them with a bit of folier cal-mag if I notice it getting excessive. I believe the Humic has Fulvic in it but its messy as hell. I've been running Si also https://buildasoil.com/products/agsil16h-potassium-silicate?variant=1040251460 but not sure I see a difference yet?

I have MammothP and Tribus but have not tried them really.

If need a lighter mix (for seeds, other plants etc) I just dilute the full strength with water to my desired PPM but I always mix my main batch the same - so far.
 
icetech

icetech

Well-Known Member
Scolwell19 said:
I am using Jack's 321 at full strength currently on 3 different plants in dwc. 2 of the plants show signs of deficiencies or something going on with them on the large fan leaves. Any input would he helpful. I am at 5.8 ph with 250w quantum board leds. View attachment 4316960 View attachment 4316963
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That looks more like burn than a deficiency to me.. but i'm not an expert..
 
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DankZs

DankZs

Well-Known Member
Im switching to jacks 321 this round and am going to supplement with recharge for microbes but for fulvic I looked into the 90% in powder form as well as bioag fulvic. What do you think is better bet? They recommend pretty high ml per gallon I think 20-30 and with dtw it would go quick. Also do I use it every watering? Really can't complain on cost of 5gal of it when switching to jacks. After running AN for years and trying a bunch of other companies I'm really excited to try powder sals for first time.
 
Capn-Crunch

Capn-Crunch

Well-Known Member
DankZs said:
Im switching to jacks 321 this round and am going to supplement with recharge for microbes but for fulvic I looked into the 90% in powder form as well as bioag fulvic. What do you think is better bet? They recommend pretty high ml per gallon I think 20-30 and with dtw it would go quick. Also do I use it every watering? Really can't complain on cost of 5gal of it when switching to jacks. After running AN for years and trying a bunch of other companies I'm really excited to try powder sals for first time.
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It's only recommended to use Fulvic Acid once every 4 to 6 weeks
 
Rurumo

Rurumo

Well-Known Member
DankZs said:
Im switching to jacks 321 this round and am going to supplement with recharge for microbes but for fulvic I looked into the 90% in powder form as well as bioag fulvic. What do you think is better bet? They recommend pretty high ml per gallon I think 20-30 and with dtw it would go quick. Also do I use it every watering? Really can't complain on cost of 5gal of it when switching to jacks. After running AN for years and trying a bunch of other companies I'm really excited to try powder sals for first time.
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I like the Mr. Fulvic brand, but I used to use Bioag, it's a good product just not very concentrated. I use it with every watering with great results, but I cut it out once stretch is done during flower.
 
DankZs

DankZs

Well-Known Member
Rurumo said:
I like the Mr. Fulvic brand, but I used to use Bioag, it's a good product just not very concentrated. I use it with every watering with great results, but I cut it out once stretch is done during flower.
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I thought mr.fulvic is 4.5% and bioag was 8% but I was looking at that as well. Is it a golden color or dark?
 
Rurumo

Rurumo

Well-Known Member
DankZs said:
I thought mr.fulvic is 4.5% and bioag was 8% but I was looking at that as well. Is it a golden color or dark?
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The Mr Fulvic looks like black coffee and it's just nice to use 1 ml/gal over 20-30 for Fulpower. It's great stuff, but I would switch to a powder form if I find something that works equally well.
 
Armyofsprout

Armyofsprout

Well-Known Member
homebrewer said:
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.
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I hate know it all growers like you. The man is simply just asking for different viewpoints. Sometimes it helps to see what others do, and sometimes it’s just plain interesting and informative whether you implement their stuff or not. Sometimes people are just curious man. You’re essentially telling people to be close minded and cut off information from others and only rely on a book or some shit.
 
Roger A. Shrubber

Roger A. Shrubber

Well-Known Member
Armyofsprout said:
I hate know it all growers like you. The man is simply just asking for different viewpoints. Sometimes it helps to see what others do, and sometimes it’s just plain interesting and informative whether you implement their stuff or not. Sometimes people are just curious man. You’re essentially telling people to be close minded and cut off information from others and only rely on a book or some shit.
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you know you're replying to someone who hasn't been on the site in over 3 years? click on someone's picture and it'll show you their recent activity
 
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