Jacks 3-2-1
- Thread starter rh6585
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farmerfischer
Well-Known Member
Look up @Dr Gruber in the grow journals.. he uses jacks or he did in the past with the drain to waste set up..
A good amount of people use 321. I can’t speak personally myself to application in Hempy buckets or Autopots. For DTW many would recommend fulvic and tribus or silica or recharge once a week.
many others can speak at length on this, I would checkout kootmeds feed chart for some of what you are looking for. I attached his feed chart for ya here
refer to the microbe mix and silica if you will.
many others can speak at length on this, I would checkout kootmeds feed chart for some of what you are looking for. I attached his feed chart for ya here
refer to the microbe mix and silica if you will.
rkymtnman
Well-Known Member
i used the RO formula with my well water in DWC and it worked great.
lilroach
Well-Known Member
I've been using Jacks Classic Blossom Booster (10-30-20) from beginning to end. I use Happy Frog and the two work well together along with a little calmag. Ten years ago I was told to buy Jack's General purpose and mistakenly bought the blossom booster.....and the plants thrived. So I never stopped using it.
All Jack's products are top notch. My nutrient cost is less than $10 a month and I have over 20 plants in various stages.
All Jack's products are top notch. My nutrient cost is less than $10 a month and I have over 20 plants in various stages.
you can’t go wrong with that !
It’s funny you say you mistakenly bought the blossom booster and I actually did that recently. How much blossom booster do you use per gallon ? Very curious, thanks in advance !
lilroach
Well-Known Member
Heaping 1/2 tspn. In almost 10 years I've never had a nute issue using Jacks. I also put a splash of calmag in per gallon.
cryologist
Member
if you go full strength right away you will fry the plant. kootsmed chart is bunk and paid for. better off starting low (like 10%) and slowly raising the EC according to how the plants respond. definitely do not need recharge or microbe mix or any extra stuff besides maybe silica (at a lower concentration than koots suggests).
I wasn’t insisting on any ratios or application rates for the OP, was simply providing a simple quick semi known feed chart that helped expand on their question. Additionally if you look a little closer at the chart used as a simple example you will note straight RO and then 25% strength suggestions, ie gradual upping of Feed strength. Just like you said with your 10% suggestion.
the OP asked specifically about what additional nutrients other people add and when.This seems to contribute to the discussion that OP was hoping for…………
waterproof808
Well-Known Member
I feed jacks 321 at 80% strength (3.0-2.0-1.0) from seedling through harvest.
It should also be noted that for some reason Jacks has recently increased the feed rate to 3.7-2.5-1.1, instead of the old 3.6-2.4.1.2. I always got a little bit of tip burn at with 3.6-2.4.1.2 ratio, so 80% seems to be the sweet spot for me.
It should also be noted that for some reason Jacks has recently increased the feed rate to 3.7-2.5-1.1, instead of the old 3.6-2.4.1.2. I always got a little bit of tip burn at with 3.6-2.4.1.2 ratio, so 80% seems to be the sweet spot for me.
TWest65
Well-Known Member
I had the same problem and just switched to 3-2-1 on this grow, too. Actually, 3.0-2.0,-0.8. Just Jacks and Tribus once a week.
twentyeight.threefive
Well-Known Member
I feed Jack’s 3-2-1 from start to finish. Starting around 0.4 EC from sprout and finishing around 1.6 EC.
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Hiddengardener
Member
I keep getting weird issues following jacks 321 in coir. I'm mixing part a @3.79 part b @ 2.52 and 0.99 epsom salt. This is in coir ph 5.8 to 6
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Nrk.cdn
Well-Known Member
What is the water schedule? Coco should be wet at all times with a 90-100% saturation. Salt can mess things up if it not flushed regularly. What is the the runoff EC?
HGCC
Well-Known Member
I do roughly (weight in grams per gallon of water) 3.2 of A, 1.5-2.5 of B depending on flower stage, 1 of mg (or swap in calmag and decrease your calnit some). I add some pk booster mid flower because I have it, but don't think it really brings much to the table over just adjusting the ratios of A to B. I don't now, but previously used silica...that was one of the few additives that I thought produced noticable results with stronger more robust plants, just been lazy and haven't bothered to get more once I ran out. Last year I used fulvic/humic acids, didn't see any advantages in this situation.
So uh, to answer the question, some version of the basic 321 is fine the whole way though. There is plenty of room to change stuff or add other things, but it isnt really necessary.
So uh, to answer the question, some version of the basic 321 is fine the whole way though. There is plenty of room to change stuff or add other things, but it isnt really necessary.
Tolerance Break
Well-Known Member
What is a good silica for hydro? Does it change the EC or PH at all?
Cabrone
Well-Known Member
This is the most plant available silica that I have found. It is expensive but you only use 0.3ml per gallon. I was introduced to the product by @PJ Diaz. He may have more info than me.
To answer your basic questions, no it does not affect EC or PH. It does foam up the reservoir a little so I add it last.
Cabrone
Well-Known Member
Sorry, I forgot to add the link
growgreenmi.com
Grow Genius Mono-Silicic Acid MSA 40% - 250mL (8.5 oz) - Fast Acting Silicon for Plants in All Settings (makes 8,333L of solution / 500L foliar)
For strength and yield increases, faster growth and stress resistance. The most concentrated MSA product on the market.
growgreenmi.com