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Fijación biológica de nitrógeno y almacenamiento de carbon en agrosistemas de producción de carbono en agrosistemas de producción de café (Coffea arábica L.) en Puerto Rico
(2009)
Coffee agroforestry systems have been promoted because they have smaller environmental impact than sun grown coffee. The majority of shade grown coffee systems use leguminous trees capable of fixing N2 from the atmosphere, ...
Validación y aceptación de la variedad de habichuela (Phaseolus vulgaris L.) 'Morales' y la variedad de maíz (Sea mays L.) 'Mayorbela"
(2006)
A data base with the daily registries of the sale of bean (Phaseolus vulgaris L.) and corn (Zea mays L.) seed was made for the years 2003 and 2004, at the Isabela Substation of the Agricultural Experimental Station of the ...
Promoting the use of tropical legumes as cover crops in Puerto Rico
(2009)
Degradation and misuse of agricultural land has made it necessary to identify solutions to address this serious problem. Cover crops have long been used in the tropics to increase soil and water conservation, especially ...
Caracterización morfológica y molecular de hongos fitopatógenos de suelo e identificación de bacterias follares en el cultivo de cebolla
(2005)
The objectives of the present investigation were to characterize morphological and molecularly some soilborne phytopathogenic fungi and identify bacteria associated to onion foliage in southern Puerto Rico. Thirteen ...
Evaluación de dos poblaciones de habichuela (Phaseoulus vulgaris L.) para ser utilizadas en el modelo de simulación Cropgro
(2005)
Crop simulation models help in the development of production strategies for future crops and in making tactical decisions during the life cycle of the crop. It is necessary, however, to collect field data to validate the ...
Caracterización fenotipica de una colección de germoplasma de mamey sapote (Portería Sapota, [JACQ.] H.E. Moore & Stearn.) del USDA-ARS TARS
(2009)
Twenty-six accessions of mamey sapote (Pouteria sapota [Jacq.] H.E. Moore & Stearn) from the USDA-ARS TARS (Tropical Agricultural Research Station) collection growing at Isabela, Puerto Rico were evaluated for both ...
Fijación biológica de nitrógeno por Leguminosas Arbóreas para para sombra de café en Puerto Rico
(2007)
Sustainable production of shaded coffee brings multiple benefits, including the conservation and increase of soil fertility. The objective of this study was to evaluate the capacity of biological N2 fixation of 30 different ...
Características agronómicas y nutricionales de asociaciones de Gramíneas y Leguminosas tropicales
(2007)
Two experiments were conducted. The objective of the first was to compare voluntary intake and digestibility of dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) of guinea grass-clitoria mixed hay (GCH; ...
Response to phenotypic recurrent selection for resistance to Diaphania hyalinata (L.) (Lepidoptera: Pyralidae) in Tropical Pumpkin (Cucurbita moschata Duchesne)esponse to phenotypic recurrent selection for resistance to Diaphania hyalinata (L.) (Lepidoptera: Pyralidae) in Tropical Pumpkin (Cucurbita moschata Duchesne)
(2007)
In order to determine the effectiveness of phenotypic recurrent selection for resistance to melonworm, two cycles of selection were carried out on Cucurbita moschata ‘Taína Dorada’. Selection was based on results of a ...
Efecto de la compactación del suelo en el desarrollo de especies forestales utilizadas para la reforestación urbana
(2005)
Trees planted in containers or along sidewalks lack necessary nutrients and water to satisfy their needs due to the compaction of limited soil volumes. This results in restricted tree growth and development and eventually ...