The capacity of fixing nitrogen through bacteria in the roots is often considered as an essential condition for a soil - improving species ( Combe , 1982 ) . 3.5 Agroforestry systems : from evolution to design In the former section ...

Agroforestry Systems 49 : 245-254 Jayasundara HPS , Dennett MD and Sangakkara UR ( 1997 ) Biological nitrogen fixation in ... Australia , ACIAR pp 247-252 Kass DL ( 1994 ) Erythrina species - pantropical multipurpose tree legumes In ...

Medicinal ues of Mexican Erythrina ( Standley 1922 ; Hastings 1990 ; Part of the plant Roots Seeds Leaves Flowers Stem Medicinal uses ... MacDicken KG , Sastry CB and Adams NR ( 1987 ) Multipurpose tree species for small - farm use .

Ella , A .; Jacobsen , C. , Stür , W.W. , y Blair , G.J. ( 1989 ) Effect of plant density and cutting frequency on the repoductivity of four tree legumes . Tropical Grasslands 25 : 281-286 . Escobar , A. , Romero , E. , y Ojeda ...

Improved animal agroforestry with multi - purpose trees could improve livestock production in tropical countries ... forage production systems must consider that the large differences in nutritive value among fodder tree species are not ...

... management g ) Forestry outreach h ) Validation of species in agroforestry systems i ) Genetic resources conservation 1 ecologist 1 wetlands specialist 1 medicinal plant specialist 2 Multi - purpose tree silviculturalists 2 natural ...

The Influence of native tree species on soil chemistry in a subtropical humid forest region of Argentina . ... Tree Improvement of Multipurpose Species . Multipurpose Tree ... nutrients in the tropics : a plant ecologist view . pp .

... of species in agroforestry systems Genetic resources conservation Genetic improvement of tropical timber species 1 ... 1 ecologist 1 wetlands specialist 1 medicinal plant specialist 2 Multi - purpose tree silviculturalists 2 natural ...

Tree Improvement of Multipurpose Species . ... A comparison of two agroforestry systems for soil , water and nutrient conservation on degraded land . ... The role of mineral nutrients in the tropics : a plant ecologist view . pp .

Unless complete familiarity with ICRAF's approach to agroforestry and to the design and use of technologies is ... An example of how to serve a wider audience is given in the publication of the " Multi - Purpose Tree and Shrub Seed ...