Healthy soil and sustainable growing

["TradingPostPaul" <tradingpost@riseup.net>]

from SOLVING THE MYSTERY OF YIELD DECLINE IN CROPS BY MEASURING 13C 
ASSIMILATION INTO MYCORRHIZAL DNA AND RNA, Merriam Powell Center for 
Environmental Research
http://www.nau.edu/~envsci/johnsonlab/research.htm

Most crop plants form symbiotic associations with arbuscular mycorrhizal (AM) 
fungi. These root-inhabiting fungi usually help plants get nutrients from the 
soil, but this benefit is greatly reduced by fertilization. There is 
correlative evidence supporting the hypothesis that, over time, agriculture 
selects species of AM fungi that can reduce crop productivity in highly 
fertilized systems. It is necessary to develop new research methods to more 
effectively test this hypothesis.

and FACT SHEET: Mycorrhizae

My-Core-What?
The blow-by-blow on beneficial root fungi, mycorrhizas--rocket boosters for 
your plants.
http://www.newfarm.org/depts/NFfield_trials/0903/factsheet_mycorrhiza.shtml

paul, tradingpost@riseup.net
---------------
The outstanding scientific discovery of the twentieth century is not 
television, or radio, but rather the complexity of the land organism. Only 
those who know the most about it can appreciate how little we know about it.
   - Aldo Leopold in  Round River, 1933