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Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties
(IICA, San José (Costa Rica), 1993-01)
We established fast-growing leguminous trees (Erythrina berteroana Urban) in native grass pastures in Costa Rica's Atlantic region to determine the effects of tree pruning and cattle grazing on soil phosphorus availability ...
Diameter increment patterns among 106 tree species in a logged and silviculturally treated Costa Rican rain forest
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 1990)
Studies of growth rates of trees in managed neotropical forests have rarely employed complete botanical identification of all species, while published information for Central american lowland rain forests largely concerns ...
Ranking twenty-two tropical browse species from Guanacaste, Costa Rica
(Instituto Interamericano de Cooperación para la Agricultura (IICA), Costa Rica, San José (Costa Rica), 1991-10)
Veintidós especies de árboles y arbustos tropicales fueron muestreadas, analizadas químicamente y clasificadas según los valores promedios de proteína cruda (CP) y digestibilidad verdadera in vitro (IVTD) de las hojas. Se ...
Stand dynamics in a logged and silviculturally treated Costa Rican rain forest, 1988-1996
(ELSEVIER, Ámsterdam (Países Bajos), 1999)
The lowland rain forests of Central America are poorly known from the standpoint of management for timber production. We studied the stand dynamics of a logged Costa Rican rain forest under three different regimes of ...
Identification and distribution of melon-infecting viruses and their vectors in two provinces of Costa Rica
(IICA, San José (Costa Rica), 1993-07)
El virus de la mancha anular de la papaya o "papaya ringspot virus" (PRSV), el virus del mosaico de la sandía II o "watermelon mosaic virus II" (WMV-II), el virus del mosaico del pepino o "cucumber mosaic virus" (CMV) y ...
Substrate conditions, foliar nutrients and the distributions of two canopy tree species in a Costa Rican secondary rain forest
(1997)
A 28 yr old secondary lowland rain forest in Costa Rica was dominated by two tree species of contrasting ecologies, Vochysia ferruginea - a species typical of well-drained but infertile soils of high AL saturation, and ...
Available soil water in a Coffea arabica-Erythrina poeppigiana, C. arabica-Eucalyptus deglupta and C. arabica monoculture plantations
(1999)
Se evaluó el agua disponible en el suelo de 0-15, 15-30, 30-45 y 45-60 cm de profundidad, en parcelas de café sin sombra y con sombra de Eucalyptus deglupta o Erythrina poeppigiana, durante la estación seca en el Valle ...