AKKERMANS , A.D.L. Root symbiosis in non - leguminous N , fixing plants . ... BREWBAKER , J. L. , BELDT , R. VAN DEN ; MacDICKEN , K. Nitrogen - fixing tree resources : potentials and limitations ... Fuelwood uses and properties .

Furthermore the trees provide small amounts of a hard fine - grained wood which can be used to make the handles of ... of replacing it with other shade / firewood trees , such as a nitrogen fixing species , can be readily assessed .

Rates trient release may be affected by lignin nitroatios and polyphenol content of the tree foliNon - nitrogen - fixing ... would be improved if trees were used with established soil - improving properties and value as timbertrees .

Soils : A Study in the Atlantic Lowlands of Costa Rica The influence of trees on soil properties should be a determining factor ... soil nitrate content under S. excelsum and D. tucurensis , both leguminous nitrogen - fixing species .

Impacts of Native Trees on Tropical Soils : A Study in the Atlantic Lowlands of Costa Rica The influence of trees on ... of higher soil nitrate content under S. excelsum and D. tucurensis , both leguminous nitrogen - fixing species .

This system can work well on drip - irrigated farms , making efficient use of limited water supplies . The potential benefit of nitrogen fixation from the air by leguminous trees , and incorporation of their green manure into vegetable ...

This system can work well on drip - irrigated farms , making efficient use of limited water supplies . The potential benefit of nitrogen fixation from the air by leguminous trees , and incorporation of their green manure into vegetable ...

More than 70 species of shade trees were identified in the plots of the 60 farmers of the sample . ... Roskoski ( 1981 ) , found high nitrogen fixing properties of Inga jinicuil , in association with coffee . The properties of the Inga ...

Trees serve to mark property boundaries and constitute a safeguard device against land usurpation . Some schemes allow to gradually change from destructive land use practices towards more stable systems , without diminishing ...