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Re: N-fixing trees



In article <Pine.A32.3.91.960910080022.75580A-100000@moose.uvm.edu>,
"David S. Conner" <dconner@moose.uvm.edu> writes
>I did some work in Senegal with N-fixing trees (Acacia albida, Leucana 
>sp., Gliricidia, etc.) but have heard little on trees common to temperate 
>zones that fix nitrogen. I would imagine Locusts do (being leguminous) 
>but they have those persistent "suckers" that sprout from roots and make it 
>difficult to work with and contain.  Does anyone have any 
>experience/knowledge of trees that could be used in the northeast US for 
>soil amendment or fodder, like the tropical species above?
>Any help is appreciated
>Thanks
>DC
>
>David Conner
>Center for Rural Studies
>207 Morrill Hall, UVM
>Burlington, VT 05405
>(802) 656-3021
>FAX: (802) 656-0776
>dconner@moose.uvm.edu
>

hello, you could try alder, a species common to europe. 
Species:Alder, Alnus glutinous (fens and by fresh water)
        Grey Alder, A. incana (drier places)
        Green Alder, A. viridis (Mountains)
This tree is definately a nitrogen fixer. the boost in growth rates is easily
seen when comparing alder with other trees in a mixed stand of similar age. No
doubt some of the nitrogen fixed by the alder is made available through the
interconnected web of life of roots and fungi, plants and animals to the whole
woodland ecosystem. mother earth is alive!  
jim@jbomford.demon.co.uk

apologies for the demon advert below which i cannot remove, but ihope the above
info is useful. regards, jim. 

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