Need help understanding the Feeding Profiles please

kenmastazz

Well-Known Member
Hi,

Ive been reading a lot about the excessive use of P and high amounts are only necessary for outdoor grows and read also when p is reduced the end product is better even the smoke.

I found a lot of nute profiles but I can't seem to figure out the calculation.



When theres is chain of values like 136-60-285-121-50-113 and a profile like 3-1-4-2-1.



Questions


- what scale is used for this numbers because my EC pen can't read ppm only ec and i have to convert so i need to know the scale

- I know the first numbers are the ppm values for N-P-K-Ca-Mag-S but what about the second chain 3-1-4-2-1 ?

Does it stand for the ratio 3times more N than P and 4 times more more K than P ? If so when I use this calculator





I enter this values for 17ml/gallon I get 135-20-149-45-90 so nowhere near the ppms.....what exactly am I doing wrong?



- Last question are these values applicable for biobizz nutes for example BB grow is 3-1-4 pretty low on P and good N:K ration. If I find a way to add some Ca:Mag can I use only grow for the full cycle?



Thanks!

EDIT: I made some calculation

Canna 1000ml/1009kg
Canna Vega2.6-1-3.1-0-1(3-1-4 rounded up) @5ml/L 35-6-34-0-13
Canna Flores 2.1-1.6-3.7-0-0.8(2-2-4) @15ml/L 84-28-123-0-32



119-34-157-0-45



my tap water: 77mg/l Ca= 77ppm & 7mg/l Mag = 7ppm

Canna + Tap = 119-34-157-77-52



is this correct ?
 

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hotrodharley

Well-Known Member
cant edit L to gallon says im spaming...L = Gallon
15ml/L = 15ml/gal​
What? A litre is a litre. A gallon is a gallon and has almost 4 litres. Two different measurement systems.

EC is far more useful than PPM. PPM meyers actually measure the EC and convert for your convenience.
 

kenmastazz

Well-Known Member
but i have to work with ppm if I want to set up a feeding profile based on lucas formula or like the one im trying to make ...they all work with ppm
 
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