Native grass pastures . ... Sustainable agriculture ; the farm management challenge of the 1990's . ... Forage quality and animal selection of Arachis pintoi in association with tropical grasses in the Eastern plains of Colombia .

Sustainable production of natural resources and management of ecosystems : the potential of South American Camelid breeding in the Andean Region S. Vinella et al . 42 The use of native trees for pasture restoration in humid tropical ...

persistence and productivity of pastures in humid environments where the leaching potential is high and available ... Adequate grazing management and stocking rates could provide a balance in the grass - legume pasture , animal output ...

Contribution of Acacia pennatula ( Carbon ) to the sustainable agroforestry productivity of the Miraflor ... ( 175 plots measuring 50x50 m ) as well as biomass measurements on 40 trees with basal diameters between 2 and 40 cm .

This brief description of the tropical humid forests is an incomplete summary of what exists in numerous books and ... who manage these forests invest large sums of money and use sophisticated technologies to maintain productivity .