Search
Now showing items 1-10 of 96
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 ...
Shade tree Chloroleucon eurycyclum promotes coffee leaf rust by reducing uredospore wash-off by rain
(Elsevier, Ámsterdam (Países Bajos), 2020)
addition, may interact with environment. To better understand shade trees effects on coffee leaf rust (CLR), we
studied three disease stages separately: sporulation, uredospore wash-off by rain, and uredospore deposition ...
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 ...
Measured ammonia emissions from tropical and subtropical pastures: A comparison with 2006 IPCC, 2019 Refinement to the 2006 IPCC, and EMEP/EEA (European Monitoring and Evaluation Programme and European Environmental Agency) inventory estimates
(American Dairy Science Association, Champaign, IL, EUA ; Elsevier, Ámsterdam, Países Bajos, 2020)
Agriculture is the largest source of ammonia (NH3) emissions. As NH3 is an indirect greenhouse gas, NH3 measurements are crucial to improving greenhouse gas emission inventory estimates. Moreover, NH3 emissions have wider ...
Some observations on Ischaemun indicum (Poaceae: Panicoideae: Andropogoneae) a recent aggresive introduction to Costa Rican pastures lands
(IICA, San José (Costa Rica), 1987-01)
Ischaemum indicum (Houtt.) Merrill, es un zacate endémico del subcontinente indio, conocido localmente como "rotana", ha sido introducido recientemente en Costa Rica y ha colonizado extensas áreas del país. Resulta de ...
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 ...
Above-ground biomass storage potential in primary rain forests managed for timber production in Costa Rica
(Elsevier, Ámsterdam (Países Bajos), 2021-07)
Tropical forests play a fundamental role in mitigating climate change through storage of carbon in above- and below- ground biomass. Their mitigation potential is, however, affected by significant greenhouse gas emissions ...
Coffee agroforestry systems capable of reducing disease-induced yield and economic losses while providing multiple ecosystem services
(2020)
Crop losses caused by pests and diseases decrease the incomes and threaten the livelihoods of thousands of families worldwide.During two years, in a research network of 61 coffee plots under a wide variety of shade 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 ...