Any idea on these EC values?

Does anybody know what the EC value is of calN at 1g/l and epsom salt at 1g/l. I assume if you know the 1gl ec value you can half it etc and that will half the ec/strength?.

I know the dry weight mathematical ''elemental ppm'' of both, along with the N and sulf. However I am unable to figure out if a rough mathematical conversion from ''elemental ppm'' to EC or Hanna PPM exists. I just need to know these values so I can work out and compare to what other people are using with blumats since many use liquid bottle feeds and talk in hanna ppm.

EC for our purposes is usually converted to PPM using a 0.5 conversion. Now to convert elemental ppm using a conductivity measurement seems unlikely as different compounds in the water conduct at different rates.

Renfro said:

EC for our purposes is usually converted to PPM using a 0.5 conversion. Now to convert elemental ppm using a conductivity measurement seems unlikely as different compounds in the water conduct at different rates.

Click to expand...

Oh, I assumed that calcium nitrate and epsom salts have a unique elemental ppm so that a read out of say 1g/l in distilled water could be a ''bench mark'' ec?. It's why I posted here ;[ was hoping somebody may have already done this if possible.

If that isn't possible then maybe you can help me understand elemental ppm strength compared to ppm readings.

The elemental ppm used is as follows (roughly).

1 G/L Base 2-1-4
N - 150
P - 30
k - 265
M - 19

0.5 G/L Cnitrate
N - 75
Ca - 95

0.5 G/L Epsom salts
Su - 65
MG - 50

Mpk boost used at 0.20G/L -- 45ppm (P) and 57ppm (K)

Individual final ppm:
N - 225
P - 30 (+45 boost)
K - 265 (+57 boost)
Ca - 95
Mg - 69
Su - 65

Total ppm: 749 (851 with boost). Micros are in but not covered.

In blumats people don't go to run off but they use hanna ppm to describe the lower strength that they must use. Since I can't compare that maybe the above will be more use if somebody is using jacks or the likes. Maybe I can leave as is? or maybe only use 3/4 over all strengths I don't know.