permaculture

[Paul Cereghino <paul.cereghino@comcast.net>]

> Movement of N upward seems to require an 
> organism that gets its N in the soil, takes it upward into the mulch, 
I was imagining a wet soil, with the soil solution nearing field 
capacity, and N migrating upwards through diffusion, as carbon chewing 
bacteria grab everything mobile out of the soil solution.  Kind of a 
longshot though... I expect that under most conditions chaos would get 
the upper hand.  Maybe if you mulched spinish seedlings with woody stuff 
in spring and N hadn't been tended to by other means.

Second could be bioturbation... worms or other thingies pulling woody 
material down into the soil creating local low N spots?

fun to think about... OK enough of this... :)
Paul Cereghino