[Terrapreta] Caution on Urine

[Jon C. Frank]

Just a quick caution on using urine.  While useful for supplying soluble
nutrients, urine should not be over applied.  The over application of urine
will cause an increase in nitrogen uptake by plants.  It needs to be used in
diluted form and also used with more carbonaceous products.  When cattle
urinate in a pasture the center area may die but the surrounding area will
be lush green with excessive nitrogen.  Cattle never prefer to eat this
because it is poor quality just the same as if excess commercial nitrogen
was applied.  The over application of nitrogen leads to poor quality
produce/forages etc. even when coming from natural/organic sources.

Using it to saturate charcoal seems quite ideal.

Jon