|
Re: Can measure EC, but not components of
EC in hydro is the electrical conductivity. It's measured directly - it has no constituents, but is probably affected by the TDS - which are the total dissolved solids.
It sounds like you want to know what your solids are composed of.
In soil cultures CEC is a measurement of your soil's ability to exchange positively charged ions (cation exchange capacity) - how well the soil medium allows the plant to take up nutrients.
|