[Terrapreta] Measuring plant health, when testing TP

[folke Günther]

*I do ot know very much of the Birx method, but as fas I understand, it is
good. At least, you get a number.
FG
*
2008/6/10 Greg and April <gregandapril at earthlink.net>:

>  One thing I have noticed, is a tendency, to measure plant health ( and to
> some extent productivity ), by how much plant mass there is, or by how much
> it has grown in comparison to the control.
>
> Since plant sugars is closely tied to health, is anyone using refractometer
> and Brix numbers to use as a less ambiguous form of measuring plant health?
>
> Greg H.
>
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