Buscar
Mostrando ítems 21-30 de 35
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 ...
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 ...
Comparative attractiveness of floral fragrance oils of "RIM" and "Catongo" cultivars of cacao (Theobroma cacao L.) to Diptera in a Costa Rican cacao plantation
(IICA, San José (Costa Rica), 1989-04)
En un terreno de cacao "Matina" abandonado de Costa Rica se hicieron pruebas durante la temporada de lluvias para comparar la atracción de tres concentraciones progresivas (100 ppm, 10 ppm, 1 ppm) de las esencias de las ...
Effects of trees on infiltrability and preferential flow in two contrasting agroecosystems in Central America
(2014)
We tested the hypothesis that trees have measurable effects on infiltrability, macroporosity, and pref-erential flows in agrosilvopastoral systems. Managing agricultural systems for water conservation is acritical component ...
Diversidade da comunidade de plantas invasoras em sistemas agroflorestais com café em Turrialba, Costa Rica
(CATIE, Turrialba (Costa Rica), 2008)
The objective of this work was to evaluate the floristic composition of spontaneous species in coffee (Coffea arabica L.) cultivated in full sun and in agroforestry systems, under organic and conventional management.Twenty ...
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 ...