Jacks (JR Peters) nutrients

im4satori

Well-Known Member
I've been using only GH for about 3 years and have nuanced nearly every component both up and down, but when using bottled nutes, IDK, it's just common to not understand how each component is constructed or properly adjusted, not withstanding the knowledge that you're now imparting to me, it wouldn't be easy for a common guy to make the right adjustment(s). And as a result, the closest I was able to come to a perfect grow was mild (deficiencies?) throughout the grow. Even the last of my Kush in veg is damaged from an imperfect/unbalanced (for cannabis) formulation, but they'll recover once they get a more evenly balanced regimen. Though I've slowly been walking back the EC thresholds grow to grow, I still had calcium deficiencies, nitrogen toxicities, what I think is a copper deficiency and generally not the happiest looking leaves throughout bloom. They functioned, but they also suffered. This system allows me to visually see all of the macros and major micros relationships to each other and less than a week with this new line, I have a much fuller understanding and in due time, I will be better equipped to adjust individually rather than a long chain of robbing Peter to pay Paul, then robbing Paul to pay.....

BTW, I figured out HydroBuddy. I just need to make minor adjustments to my base nutes and I'll be a true mad scientist! Thanks for all the help.!View attachment 4197129 View attachment 4197130
perfect
 

Huckster79

Well-Known Member
Man call me a hobbyist, and i am, but i feed about half teaspoon a gallon of hydro and half tespoon a gallon of calnitrate baby till mid flower then cut down to no cal nitrate, and some epsom all along... they dont burn they dont look hungry and the end result seems to be plenty enough in the jars and high enough octain to take me where im going...

Tho i do run mine through coco treated much like hydro so maybe the coco gives me some wiggle room to not be so precise... my girls can wick water/feed 24/7 and get top watered 12 times a day
 

im4satori

Well-Known Member
if your using GH and your having all those nutrient imbalaces revolving around micro nutes... your either feeding too much or your PH is off

not likely youd experience a micro nute def unless your feeding less than EC0.8 or if the ph is off

over feeding often times looks like several def combined...
technically they are..when you over feed you get lock out and the plant doesn't get certain elements or theyre not available

so although your feeding heavy theyre still lacking

GH 3 part is also light on calcium and magnesium.. generally the mix requires abouit 2mls calmag and 1/4 tsp Epsom salt per gallon to balance the cation
 

im4satori

Well-Known Member
theres a balancing act between the uptake of potassium calcium and magnesium

if one of these elements is out of ratio itll throw the whole thing off

to much potassium will lock out magnesium, too much calcium will lock out potassium and magnesium

looking at numbers youd like to get something close to a 3:2:1 ratio K:Ca:Mg

so if your K is 120ppm, youd ideally want your calcium 80ppm and Mg 40ppm

the only time this rule doesn't apply is during late late bloom when the K requirements go up youll see a 4:2:1 ratio will work
for example
K 160
Ca 80
Mg 40

but that's really pushing the K up to its limits and not something I bother with... I just feed the 3:2:1 ratio between K:Ca:Mg


so the ppm of Mg will always ideally be half that of the calcium

having said that you can see the jack mix you posted on hydrobuddy...the Mg number is very high (65ppm)

high Mg wont hurt anything but its more than required
 

Skybound420

Well-Known Member
Bingo!! It's easy(ish) spotting toxicities or deficiencies with a pair of eyes and a search engine, but lockouts due to imbalance is like the UNgift that keeps on giving. Maybe seasoned botanists can quickly spot shit like that, but a stoner like me doesn't stand a chance trying to troubleshoot a lockout. so while I'm trying to over correct for a problem that doesn't exist, I further neglect the root cause and end up double screwed. Thankfully, for me, it was never that serious, but the potential was always there.

I know you grow in rockwool too, have you ever tried croutons? I use both the minis and the chunks and love them to death! I've forgot to plug a pump back in many a time, and worst I've ever endured was a wilted plant that wasn't fed in 2 days. After a watering, they stand right up! I also use airpots for a highly aerated root zone. There's pros and cons, of which I'm sure you can guess both. Still, this method is near brainless.
IMG_20180911_212155292_HDR.jpg
 

im4satori

Well-Known Member
always feed less

you can be slightly def from underfeeding and still produce huge healthy colas... over feeding is literally the worst thing you can do

if your underfedding you can always add more and it takes about 48 hours to correct...if your over feeding its a nightmare and difficult to correct and takes much longer

keep your EC at 1.2 max... youll be shocked

id not mess with the mkp at fist...just use the basic 3-2 mix and use it as a bench mark before tweaking it

also make sure your getting enough run off with each watering... if you don't put enough volume thru the medium youll get accumulation which is the same thing as over fertilizing

are you running a reservoir or is it drain to waste

if you run a reservoir .. manage it with these rules in mind

PH goes up and EC goes down = raise EC (maybe)
ph goes down or EC goes up = lower EC

if its dtw then youll test the waste and compare it to the feed solution
and use the same rules
 
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Skybound420

Well-Known Member
I learned it's easier to fix a deficiency than a toxicity.

Edit - I adjust the epsom in HydroBuddy to 1/2 gram and that lowered the Mg down to 52.9, When deleting epsom, Jack's Pro gets it up to 39.9. I guess equilibrium is somewhere near the 1/4 gram range.
 
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im4satori

Well-Known Member
I learned it's easier to fix a deficiency than a toxicity.

Edit - I adjust the epsom in HydroBuddy to 1/2 gram and that lowered the Mg down to 52.9, When deleting epsom, Jack's Pro gets it up to 39.9. I guess equilibrium is somewhere near the 1/4 gram range.
that's exactly how id run it... Mg slightly above the ratio is perfect... some plants are Mg hogs
 

Skybound420

Well-Known Member
15 minute recirculating. res changes once every 6-7 days. I'm experimenting with frequency and right now I'm feeding twice daily till mid bloom, than upping to 3 feeds daily, 15 minutes each. Very thorough flushing. With GH at least, I've been doing a mid bloom flush to prevent buildups and that was a game changer which helped minimize my imbalances.
 

Skybound420

Well-Known Member
Kush is a CalMag hog, though IDK if that was for the cal or the mag. I read that when researching the strain before growing it, and I have been giving 2 more ml/gal than GH required. IDK if I helped or hirt things in the long run.
 

im4satori

Well-Known Member
Kush is a CalMag hog, though IDK if that was for the cal or the mag. I read that when researching the strain before growing it, and I have been giving 2 more ml/gal than GH required. IDK if I helped or hirt things in the long run.
how are you mixing the GH

is it the 3 part grow micro bloom, do you have the kool bloom?
 

im4satori

Well-Known Member
there are several mixing options with the GH 3part

heres one for example if your mixing bloom and don't have the kool bloom

per gallon

grow 6 mls
micro 3mls
bloom 6mls
calmag 5mls

98 N
41 P
138 K
82 Ca
48 Mg

heres another bloom option

grow 2.5mls
micro 5 mls
bloom 7.5 mls
kool bloom 1 ml
calmag 2mls

90 N
58 P
132 K
39 Mg
83 Ca



and another option

2.5 grow
5 micro
10 bloom
2mls calmag

90 N
60 P
132 K
83 Ca
49 Ca

another option

0 mls grow
7mls micro
14mls bloom

92 N
81 P
138 K
Ca92
Mg 55




a 1/4 tsp (1 gram)per gallon adds 25ppm Mg

0.5 grams per gallon adds 13ppm Mg
 
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Skybound420

Well-Known Member
I have GH's entire Flora series line except Diamond Nectar. Looking at nxsov180db's regimen leads me to believe I might be able to trickle out my CALiMAGic supplies over time but generally speaking, I'd be content to never use GH again unless needed. I have a pretty good dry nute starter kit and I want to keep fleshing that collection out. There's so much more control this way. Please review my bloom schedules Io made last night and make recommendations as you see the need? I got 5lbs of Potassium Sulfate to recreate Flora Nectar 'Fruit-n-Fusion as that stuff has made my Kush taste so sweet which actually complements the fuely/earthy/musky flavors well.

Early Bloom
Week 0.JPG

Late Bloom
Week 5-6.JPG
 

Skybound420

Well-Known Member
I'd also like to hear your thoughts about converting mass weight (grams) into liquid volume (ml) for easier references. I want to make the dry nutes into concentrates and I believe if I divide the number of ml in a gallon by 10, I can add that many grams of dry nutes to each bottle that would then allow me to easily convert grams per gallon into ml per gallon.

3785.41/10=378.54 grams of Jack's Pro 5-12-26 to one US gallon. If my math is correct, that would translate 1 gram of Jack's into 10ml. I'd then be able to reference my recipe for Jack's Pro (2.4 grams) and instead of having to weigh, I could just draw up into a syringe 24 ml of Jack's Pro, or multiply that 24ml dose by the number of gallons my res is.

I would then mix other components into their own respective gallon as done so for Jack's Pro.
 

Skybound420

Well-Known Member
I have done just that. Actually what I do is I make my stock solutions so that I use 10ml for every gallon, so when I measure out each of the 3 parts for 20 gallons I'm using 200ml of each stock.

Late bloom your Calcium looks pretty low.
My intent with the numbers I used is to convert one gram into 10ml. This way, if I need to change the dose or the whole recipe, I would be free to do so.
 

im4satori

Well-Known Member
I have GH's entire Flora series line except Diamond Nectar. Looking at nxsov180db's regimen leads me to believe I might be able to trickle out my CALiMAGic supplies over time but generally speaking, I'd be content to never use GH again unless needed. I have a pretty good dry nute starter kit and I want to keep fleshing that collection out. There's so much more control this way. Please review my bloom schedules Io made last night and make recommendations as you see the need? I got 5lbs of Potassium Sulfate to recreate Flora Nectar 'Fruit-n-Fusion as that stuff has made my Kush taste so sweet which actually complements the fuely/earthy/musky flavors well.

Early Bloom
View attachment 4197251

Late Bloom
View attachment 4197253
looks good

btw..don't count on the EC numbers hydrobuddy provides... itll turn out higher than what they say
 
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