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permaculture - Re: interplanting with dryland legume trees

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  • From: "Australia Felix Permaculture" <pcorgbgo@bendigo.net.au>
  • To: "permaculture" <permaculture@franklin.oit.unc.edu>
  • Subject: Re: interplanting with dryland legume trees
  • Date: Wed, 5 Jul 2000 20:20:59 +1000


Hello Steve,

We have been using the following dryland leguminous species that offer the
sort of multiple benefit outcomes required for Permaculture systems. I have
also included in the list some of the other species we interplant with as
weed suppressing/fodder producing groundcovers/understoreys:

250mm - 450mm Rainfall (between drip/leeaky hose irrigated/broadacre
unirrigated fruit/tree crops etc.)
Acacia saligna (medium shrub)
Acacia iteaphylla (medium shrub)
Atriplex nummularia (small shrub)
Atriplex amnicola (Prostrate Shrub)
Cytisus palmensis (medium shrub/small tree)

450mm - 600mm Rainfall (between drip/leeaky hose irrigated/broadacre
unirrigated fruit/tree crops etc.)
Acacia retinodes (medium shrub - great edible seed yields esp. with varietal
selection 1-1.5+ tonnes/ha @ yr. 5)
Cytisus palmensis (medium shrub/small tree)
Atriplex nummularia (small shrub)
Atriplex amnicola (Prostrate Shrub)
Casuarina cunninghamiana (tall tree - coppiced as multi-stemmed/suckering
shrub)

I once toyed with the idea of using Mesquite after reading J.Russell Smith's
Tree Crops: A Permanent Agriculture, but then found that this was listed as
an "economic plant" by virtue of its Noxious Weed status, and are therefore
unable to utilise what appears to be an excellent species. With respect to
the integration of leguminous species with Eucalypt forestry we have been
successful in using the following species combinations (I can't list all
combinations/species - just off the top of my head!) on both small and large
projects. All are timber species with multiple low to high end use values.

250mm - 450mm Rainfall [835 spha (4m x 3m) with 70-80% thinned to final
stocking rate - then harvested selectively as multispecies, managed
permanent forest - no clear felling here!!]
Eucalyptus cladocalyx
Eucalyptus occidentalis
Eucalyptus sideroxylon/tricarpa
Eucalyptus camaldulensis
Eucalyptus leucoxylon
with
Casuarina cristata
Acacia pendula
Acacia oswaldii
Acacia stenophylla
Acacia aneura
Acacia salicina
Acacia implexa

450mm - 650mm Rainfall [835 spha (4m x 3m) / 1000 sph (4m x 2.5m) / 1100 sph
(3m x 3m) with 70-80% thinned to final stocking rate]

Eucalyptus cladocalyx
Eucalyptus botyroides
Eucalyptus saligna
Corymbia maculata
Eucalyptus microcarpa
Eucalyptus melliodora
Eucalyptus occidentalis
Eucalyptus sideroxylon/tricarpa
Eucalyptus camaldulensis
Eucalyptus leucoxylon
Maclura pomifera
Quercus lusitanica
Quercus robur var. fastigiata
Grevillea robusta
with
Allocasuarina leuhmanni
Allocasuarina verticillata
Robinia pseudoacacia
Acacia pendula
Acacia oswaldii
Acacia stenophylla
Acacia aneura
Acacia salicina
Acacia implexa
Acacia dealbata
Acacia melanoxylon
Casuarina cunninghamiana
Acacia mearnsii

I hope that this helps you out,

When our new web page is done you will have access to .pdf Fact Files
(currenly huge files in MS Word) of all of the above and a lot more.

Yours and Growing,

Darren J. Doherty
www.australiafelix.com.au











----- Original Message -----
From: stephan leimroth <slimerote@yahoo.com>
To: permaculture <permaculture@franklin.oit.unc.edu>
Sent: Wednesday, July 05, 2000 10:00 AM
Subject: interplanting with dryland legume trees


> Hello, All.
>
> I'd like some opinions about interplanting desert
> legume trees (acacia, mesquite and palo verde) with
> fruit and nut trees in a dry, Mediterranean climate
> (inland central California). I'm aware of the use of
> legume trees in 'alley cropping' as a source of
> nitrogen-rich mulch in moist climates, but i wonder if
> this system works in a dry climate in which (surface)
> decomposition is slow. I'm also concerned that the
> legume trees may just fiercely out-compete the fruit
> and nut trees for our precious water.
>
> Last year we hand dug small swales and ran a drip
> system along the contour of an approximately 20% slope
> and planted about 40 fruit and nut trees along these.
> We left what we think is enough room for the legume
> trees between each of the fruit or nut trees if we
> decide to go for it.
>
> Thanks for any ideas, opinions, or resources!
>
> Kind regards,
> Stephan Leimroth
> Bradley, California
>
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