His premise is correct.
" His argument was that grass-fed livestock was easier on
land while requiring fewer inputs than any conventionally grown field
crop,"
.. short and sassy..."grass fed better'n grain fed"
maybe?
"a friend told me the other day that conventionally grown soybeans
deplete soil nitrogen.
off the cuff opinion...
First... N is added to the soil as fertilizer..., by man/
animals,plants...
in many forms..
so " soil N" is kinda meaningless term w/o some conotation by the
author.
So , N fluctuates to some degree w/ man's additions of IT to cropland.
It also varies due to many biological processes...
.. and the demands on this supply by soil processes.
...ANd in a strict sense the porosity of the soil has a great deAL of
influence
on the amount of gaseous N in the ' soil air'.
Inoculated beans can help bolster the N supply, but only if adequate
measures
of fertility are in store.... to include elemental deficienceies
/excesses-lack of
one or many elemnts , whether not in supply,
or in supply -just not available...
...can hinder N- fixing by rhizobium type symbiotic bac.
bill evans
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