npk ratio
- Thread starter feykns
- Start date
ProPheT 216
Well-Known Member
thanks for the post but it leads me to even more questions... how to bring those raw npk number together with those ppm values. even if i convert the raw npk to elemental npk there is no connection... for example jacks 2-2-2 would be 2-1-2 elemental, but the ppms saying 1-1-2 ratio... what am i missing out??
ProPheT 216
Well-Known Member
I do not follow what your trying to say
Tolerance Break
Well-Known Member
You're making it way more complicated than it needs to be.
My 2 cents, either follow the directions provided with a given nutrient at varying strengths depending on what variables are at play, or read a book on the actual science.
Remember KISS, Keep it simple stupid!
My 2 cents, either follow the directions provided with a given nutrient at varying strengths depending on what variables are at play, or read a book on the actual science.
Remember KISS, Keep it simple stupid!
Gemtree
Well-Known Member
Think that’s all grams. Jacks is 3-1-4 and you can see it mostly matches in the first column
ProPheT 216
Well-Known Member
Combining these for instance at 3.6 grams jacks, 2.4 cal nitrate, 1.2 magnesium sulfate gives you that first column
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gotcha guys... those are recipes, my bad...
i am trying find the best ratio where quality hits the most... the most recommended or proven ratios mostly aiming for yield and are low on P heavy in K...
i could figure out some keypoints i really would like to try in my next cycle.
it is said npk 1-2-1 or 1-3-2 (after conversion to elemental npk very close to each other like 1-1-1) are hitting quality and yield and that the most of us lacking P and Ca and overfeeding wih K and Mg. also recommended Ca not lower than K and Mg 1/4 of N. I'd like to give it a try.
1-3-2 would hypothetically mean in ppm
N100
P131
K166
Ca175
Mg25
and 1-2-1 would be
N100
P87.2
K83
Ca90
Mg25
those are just ratios... concentration ist adjustable.
what are your thoughts on this?
i am trying find the best ratio where quality hits the most... the most recommended or proven ratios mostly aiming for yield and are low on P heavy in K...
i could figure out some keypoints i really would like to try in my next cycle.
it is said npk 1-2-1 or 1-3-2 (after conversion to elemental npk very close to each other like 1-1-1) are hitting quality and yield and that the most of us lacking P and Ca and overfeeding wih K and Mg. also recommended Ca not lower than K and Mg 1/4 of N. I'd like to give it a try.
1-3-2 would hypothetically mean in ppm
N100
P131
K166
Ca175
Mg25
and 1-2-1 would be
N100
P87.2
K83
Ca90
Mg25
those are just ratios... concentration ist adjustable.
what are your thoughts on this?
ProPheT 216
Well-Known Member
Exactly what I showed you is what you want. Beginner friendly, top of the line, top tier prices. Athena is also top notch but pricy
ProPheT 216
Well-Known Member
You are bound by how the supplier mixes it. Jacks gives you good control over nitrogen because of the calcium nitrate. But you are still bound by the fact the base is 5 12 26.
Athena gives you total nitrogen and calcium control at a much higher price.
nxsov180db
Well-Known Member
Run your P at 131 and you'll get toxicity. You only need a little P. More N, and even more K. 1-1-2 and 2-1-3 are popular flower ratios.
Turpman
Well-Known Member
Jacks 5 12 26 plus calnit.
3G to 2g in 1gal.
I get 102N 41P 170 ppm.
That’s 1 to .4to 1.6
It’s my understanding all fert manufacturers list P and K as percent P205 and K2O. Which you need to multiply by % factor to get real the percent.
Now are the 1-3-2 ratios the same percent actual%. I’m guessing so.
3G to 2g in 1gal.
I get 102N 41P 170 ppm.
That’s 1 to .4to 1.6
It’s my understanding all fert manufacturers list P and K as percent P205 and K2O. Which you need to multiply by % factor to get real the percent.
Now are the 1-3-2 ratios the same percent actual%. I’m guessing so.
Last edited:
Gemtree
Well-Known Member
You start with the lowest that goes into the others. 30-15-30 is the same as 2-1-2 (if that’s what you’re talking about lol)
Turpman
Well-Known Member
Yes but 15% of P2O5 is 6.45% phosphorous? Unless the companies are listing available Phosphorous. But the way I understand is it is p2o5 they are listing. Same for K its 83%
Gemtree
Well-Known Member
Yeah I saw that the second time I read it lol. I haven’t seen many that actually matched up so idk
Gemtree
Well-Known Member
@TintEastwood made all those recipe npk charts doing the same thing. He would know about it haven’t seen him in a while though