Results 21 to 30 of about 292,169 (163)

Consecuencias económicas del uso de aguas contaminadas en la producción de tomate (Lycopersicon esculentum)

open access: yesTecnología en Marcha, 2019
Conocidas las virtudes y limitacioens del modelo de Función de Producción Cobb-Douglas se aplicó a la información procedente de agricultores de San Antonio de Belén (Heredia) y San Rafael de Alajuela (Bosque Húmedo Premontano); zona altamente productora
Walter Salas-U.
doaj   +1 more source

Adjustment of the AquaCrop model in maize with different levels of irrigation in southern Uruguay temperate climate conditions

open access: yesAgrociencia Uruguay
The AquaCrop model allows evaluating and designing irrigation strategies that improve the use of irrigation water. The objective of this research was to calibrate and validate the AquaCrop model for maize to the climatic conditions of southern Uruguay ...
Raquel Hayashi, Santiago Dogliotti
doaj   +1 more source

Assessment of fodder corn grown under surface and subsurface drip irrigation in Mendoza, Argentina

open access: yesRevista de la Facultad de Ciencias Agrarias, 2021
Drip irrigation –surface (DI) and subsurface (SDI)– is one of the best irrigation systems to increase both irrigation and water use efficiency. The objective of this research is to assess and compare the response of fodder corn to SDI treatments at two ...
Richard Jose Ortega Justavino   +2 more
doaj   +1 more source

La fotodegradación de contaminantes orgánicos presentes en aguas procedentes de escombreras de carbón. [PDF]

open access: yes, 2006
La producción de los estériles de carbón en España rondó, durante la década de los 80, los 5 millo nes de toneladas. La mayor parte de estos estériles se han almacenado en escombreras, lo que plantea importantes problemas tanto desde el punto de vista ...
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

Species Limits and Hybridization in Andean Leaf‐Eared Mice (Phyllotis)

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
Diversification of Phyllotis coincided with mid‐ to late‐Pleistocene climate change. Species delimitation revealed cryptic diversity within several nominal forms. Genomic analyses revealed evidence for introgressive hybridization. ABSTRACT Leaf‐eared mice (genus Phyllotis) are among the most widespread and abundant small mammals in the Andean Altiplano,
Marcial Quiroga‐Carmona   +13 more
wiley   +1 more source

Procedimiento integral para el mejoramiento del sistema de producción y tratamiento de aguas residuales de curtiembres en el departamento Cundinamarca, provincia de Almeidas, municipio de Villapinzón [PDF]

open access: yes, 2017
Visita Técnica InternacionalSe propone establecer un procedimiento integral que permita el mejoramiento de producción de curtiembres, con el fin de disminuir el impacto ambiental en el municipio de Villapinzón, por medio de una visita técnica ...
Bejarano-Morales, Daniel Felipe   +1 more
core  

Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling

open access: yesMolecular Ecology, Volume 34, Issue 11, June 2025.
ABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Camila Timana‐Mendoza   +7 more
wiley   +1 more source

Factores empíricos de conversión leucina-carbono para la estimación de producción bacteriana heterotrófica : relación con la diversidad bacteriana y la calidad de la materia orgánica [PDF]

open access: yes, 2018
[Resumen]: La estimación de la producción bacteriana heterotrófica (HBP) es una variable clave para determinar el papel de las bacterias en los flujos de carbono en el océano.
Orta Ponce, Cessna Pamela
core   +1 more source

Effects of biochar, N‐enriched biochar and urea on tomato seed germination, vegetative growth, and fruit traits

open access: yesJournal of the Science of Food and Agriculture, Volume 105, Issue 4, Page 2476-2485, 15 March 2025.
Abstract BACKGROUND Agronomic uses of biochar have been intensely explored in the last 15 years. Recently, a new generation of biochar‐based fertilizers has been developed. Raw biochar (BCH), nitrogen‐enriched biochar (N + BCH) or urea were added to a coir fiber‐based substrate for tomato cultivation, to assess seed germination, growth and fruiting of ...
Fernando Fornes   +6 more
wiley   +1 more source

Spatial and Temporal Distribution of Tuberculosis in the State of Mexico, Mexico

open access: yesThe Scientific World Journal, Volume 2012, Issue 1, 2012., 2012
Tuberculosis (TB) is one of the oldest human diseases that still affects large population groups. According to the World Health Organization (WHO), there were approximately 9.4 million new cases worldwide in the year 2010. In Mexico, there were 18,848 new cases of TB of all clinical variants in 2010.
Adrian Zaragoza Bastida   +9 more
wiley   +1 more source

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