HYDROBIO

Where is the land?

A place and a soil. If you have a laboratory analysis, it replaces every estimate below it.

I have a soil analysis
dS/m
%
cmol/kg
mg/kg
%

Leave anything you have not measured empty. An absent value stays absent — it is never guessed into a number that flatters the result.

mm
The amendment only holds water where it physically is. Working it deeper puts it in more of the root zone — but no deeper than the crop actually roots.