Costa Rican nitrogen fixing trees with possibilities for greater use . Nitr . Fix . Tree Res . Rep . 8 : 30-31 . * Parrotta , J. A. 1992. The role of plantation forests in rehabilitating degraded tropical ecosystems .

Costa Rican nitrogen fixing trees with possibilities for greater use . Nitr . Fix . Tree Res . Rep . 8 : 30-31 . * Parrotta , J. A. 1992. The role of plantation forests in rehabilitating degraded tropical ecosystems .

Nichols D and Rodriguez E 1990 Costa Rican nitrogen fixing trees with possibilities for greater use . Nitr . Fix . Tree Res . Reports 8 . 30-31 . Robertson G P 1984 Nitrification and nitrogen mineralization in a lowland rainforest ...

117. CATIE , Turrialba , Costa Rica . Donald C. L. pass et al . Gutteridge and CAB. CONCLUSIONS There are a great number of agroforestry systems n the Americas in which biological nitrogen Exition is of considerable significance .

The use of a mixtures of forages with contrasting tannin concentrations contributed to increased efficiency of absorbed N ... Capacity of nitrogen - fixing trees to supply nutrients to maize ( Zea mays ) in Costa Rica's base - deficient ...

Mixed tree plantations Experiments with native trees in Costa Rica and Argentina Montagnini , F. 1992. Mixed - tree plantations with native trees : land use systems for economic returns and soil i Common Name Table 1.

radiation and the resultant decrease in evapotranspiration provides a more humid understo- rey microclimate ... case of leguminose trees , the possibility exists , that the fixation of atmospheric nitrogen contributes to the enrichment ...

The potential nutritional value to cattle of some tropical browse species from Guanacaste , Costa Rica . Ph.D. Thesis . Ithaca , New York , Cornell University . 4. ... Nitrogen Fixing Tree Association , Waimanalo , Hawaii , ( USA ) . 7.

Both research results and some farm - level experiences in the Region indicate that the potential for increasing ... Nitrogen - fixing trees improve soil fertility and more effectively recycle nutrients ( Romero et al . , 1991 ) . Use ...

Franki alni ) the root system of the tree has the potential to fix atmospheric nitrogen in quantities sufficient for ... of 60.5 mg ( more than 2 % ) of nitrogen , as compared to 0.17 mg without this association a 355 fold difference .