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Mostrando ítems 31-40 de 474
Thalassia as a Food Source: Importance and Potential in the Marine and Terrestrial EnvironmentsTítulo en español
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 1980)
A long-term sustainability assessment of an Argentinian agriculturalsystem based on emergy synthesis
(Elsevier, 2015-06-14)
By tracking the different flows of emergy (the total amount of solar energy that was directly or indirectly required in a production process) it is possible to account for all environmental work previously involved in ...
Diagnóstico da taxa de sobrevivência e de crescimento de espécies nativas da Caatinga em projetos de restauração
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia FlorestalUnidade Acadêmica Especializada em Ciências Agrárias, 2022-07-11)
The semi-arid region of Northeast Brazil has serious degradation problems caused by the extraction of its natural resources and the indiscriminate use of soils for agriculture and livestock. This work studied the survival ...
Inheritance of evolved resistance to a novel herbicide (pyroxasulfone)
(Elsevier Ireland, 2014-01)
Agricultural weeds have rapidly adapted to intensive herbicide selection and resistance to herbicides has evolved within ecological timescales. Yet, the genetic basis of broad-spectrum generalist herbicide resistance is ...
Metals and metalloids in water and sediment of the Suquía River basin: Spatial and temporal changes
(Springer Verlag, 2015-10)
Metals, metalloids and nonmetals concentrations along the Suquía River basin have been monitored in sediment and surface water, during the wet and dry season, at different points and by different authors since 1997 until ...
Basis for the Management of Schistocerca cancellata (Orthoptera: Acrididae)
(Oxford Academic Press, 2022-11)
The locust species Schistocerca cancellata Serville, endemic to South America, is known for its ability to form dense swarms, which reach the status of agricultural pest for several crops in southern South America. This ...
Landscape attributes effects on Ateles fusciceps presence patterns in northwestern EcuadorEfecto de atributos paisajísticos en los patrones de presencia de Ateles fusciceps en el noroccidente ecuatoriano
(Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, 2018)
Sistema de planificación acciones formativas
(Universidad Nacional (Costa Rica), 2004)
Para alcanzar lo descrito y como una respuesta a las exigencias del desarrollo informático, el Ministerio de Agricultura y Ganadería (MAG) ha venido gestionando en la integración y difusión de la información técnico-cientifica ...
Nutrient levels associated with ecological thresholds of impairment: An approach to estimate numeric nutrient criteria for reservoirs of Puerto RicoNiveles nutricionales asociados con umbrales de impacto ecológico: Alternativa para estimar los criterios numéricos de nutrientes para los embalses en Puerto Rico
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 2015)