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Centro agroecológico ribereño de Llanquihue
(Universidad de Chile, 2016)
Araucanos
La Relevancia de la ciudad de Llanquihue dentro del corredor biológico Cordillera-costa
ECONOMÍA y SOCIEDAD
La actividad Agropecuaria en la sociedad de Llanquihue
La Agroecología como apoyo al modelo de desarrollo agricola...
Especialista en Medio Ambiente, U. de Los Lagos X R. -Jaime G. Cuevas Investigador INIA, Oficina Los Rios XIV R. -Astrid Seperiza Directora CEUS USACH Llanquihue, X R. -Santiago Peredo Investigador Grupo de Agroecología y Medio Ambiente , Jefe Lab. Agroecología...
Especialista en Medio Ambiente, U. de Los Lagos X R. -Jaime G. Cuevas Investigador INIA, Oficina Los Rios XIV R. -Astrid Seperiza Directora CEUS USACH Llanquihue, X R. -Santiago Peredo Investigador Grupo de Agroecología y Medio Ambiente , Jefe Lab. Agroecología...
Challenges for agroecology development for the building of sustainable agri-food systems
(Pontificia Universidad Católica de Chile, Facultad de Agronomía e Ingeniería Forestal, 2020)
oradores en el taller “Desafíos para el desarrollo de la agroecología
para la creación de sistemas agroalimentarios sostenibles”, una conferencia patrocinada por
el Programa de Investigación Cooperativa de la OCDE. El objetivo del curso práctico era...
promover la transición de la agricultura convencional a la agroecología como ciencia, práctica y movimiento social mediante el intercambio de las experiencias de los diferentes países de la OCDE: Australia, Canadá, Chile, Colombia, España, Estados Unidos...
promover la transición de la agricultura convencional a la agroecología como ciencia, práctica y movimiento social mediante el intercambio de las experiencias de los diferentes países de la OCDE: Australia, Canadá, Chile, Colombia, España, Estados Unidos...
Estudio para la creación de un mercado de alimentos y productos agroecológicos en la Comuna de Independencia
(Universidad de Chile, 2017)
primera parte de este trabajo se analizaron diversas experiencias relacionadas a la agroecología y a la realización de mercados agroecológicos en el mundo y en Chile, para poder contextualizar la propuesta que se quiere llevar a cabo. Como resultado del...
Al encuentro. Proyecto audiovisual para el desarrollo de productores agroecológicos de la zona de Paine y Pirque y su red de co-productores
(Universidad de Chile, 2015)
CONSTRUCCIÓN Y
VISUALIDAD DEL MODELO DE INTERCAMBIO PRODUCTIVO
DISEÑO DE CARTOGRAFÍA
SLOW FOOD
AGROECOLOGÍA V/S AGRICULTURA ORGÁNICA
CONCEPTO DE TRANSFORMACIÓN CULTURAL
LEVANTAMIENTO DE INFORMACIÓN
GEOGRÁFICO/CONTEXTUAL
HISTORIA CONVIVIUM
ESTRUCTURA ENCUENTRO...
activo dentro del proceso. Que sepa que es lo que está comiendo, a quien involucra y cómo se produce. 10 G ab ri el a M o ya ESTRUCTURA DEL PROYECTO 12 G ab ri el a M o ya CO-productor productor agroecología consciente Slow food procesos...
activo dentro del proceso. Que sepa que es lo que está comiendo, a quien involucra y cómo se produce. 10 G ab ri el a M o ya ESTRUCTURA DEL PROYECTO 12 G ab ri el a M o ya CO-productor productor agroecología consciente Slow food procesos...
Determinación de la sustentabilidad mediante indicadores agroecológicos en predios con ganado caprino, en la Comuna de Coquimbo, Chile
(Universidad de Chile, 2015)
........................................................................................................................2
3. CAPÍTULO I. REVISIÓN BIBLIOGRÁFICA .............................................................3
3.1 Agroecología .....................................................................................................................3
3...
: MESMIS, sustainable, agroecosystem. 3 3. CAPÍTULO I. REVISIÓN BIBLIOGRÁFICA 3.1 Agroecología El término Agroecología ha evolucionado a través del tiempo, y se conocen indicios que indican que el tema se ha abordado desde el año 1928 hasta...
: MESMIS, sustainable, agroecosystem. 3 3. CAPÍTULO I. REVISIÓN BIBLIOGRÁFICA 3.1 Agroecología El término Agroecología ha evolucionado a través del tiempo, y se conocen indicios que indican que el tema se ha abordado desde el año 1928 hasta...
Efecto diferencial dependiente de fosfato de la variabilidad de hongo micorrízico sobre indicadores biológicos y bioquímicos de calidad del suelo en cultivo in situ de yuca en Kenia
(Universidad de Chile, 2021)
crecimiento de las plantas. El uso del hongo micorrícico arbuscular
Rhizophagus irregularis en agroecología es una estrategia atractiva, dado que el
hongo incrementa la biodisponibilidad del fosfato para las plantas. Esto
potencialmente disminuye la necesidad...
The rhizosphere is very important in plant health and growth. As an integrated ecosystem it hosts all sorts of microorganisms that participate in plant defense, ecosystem diversity enrichment, nutrient availability and plant growth promotion. The use of mycorrhizal fungi Rhizophagus irregularis in agroecology is an attractive strategy because the fungus makes phosphate more available to plants, and this potentially decreases the need to fertilize. This is very useful, especially in tropical environments where the levels of phosphate are low. The presence of mycorrhizal fungi greatly increases crop productivity. This is especially important in cassava (Manihot esculenta) because this crop feeds a great part of the human population, including regions with recurrent starvation episodes. Even though R. irregularis is a ubiquitous organism, its large and complex genomic variability could cause different effects in soil microbiome. Because mycorrhizal fungi also exhibit an impact on soil structure, it is possible that they will affect the organic matter availability to microorganisms in soils, affecting soil respiration rates or enzymatic activities of the soil microbial community. All these possible impacted factors by mycorrhizal presence are important soil quality indicators, whose monitoring is crucial to assure a healthy agroecosystem. It was hypothesized that the genetic variability between R. irregularis lines impacts soil quality indicators such as soil respiration, enzymatic activities, total organic carbon and microbial biomass, depending on the level of phosphate fertilization used, on in situ cassava crops in Kenya. In order to determine their impact, the effects of four highly variable R. irregularis strains on soil quality indicators where studied after their application in cassava crops in Kenia. The first aim was to evaluate the impact of the variability between strains on the microbial biomass (Cmic) and total organic carbon (COT) of the soil. The fumigation method with chloroform and analysis of elemental carbon was used. Results suggested that there is no significant influence on the COT and Cmic associated to the genetic variability of R. irregularis. This appears to be independent of the phosphate fertilization level. The second aim was to compare soil respiration after inoculation of the different strains. CO2 release was measured by incubation of soil in hermetic glass vials. Measurements indicated that phosphate levels influence CO2 release of genetically variable R. irregularis lines. However, phosphate level did not influence the differential effect within a single R. irregularis line. The third aim was to evaluate the effect of the inoculation of the different lines on enzymatic activities of β-glucosidase (BG), leucine-aminopeptidase (LA) and acid phosphatase (FAc). Enzymatic reaction rates were measured after the administration of labeled substrates to soil samples. Results obtained suggest that phosphate levels have differential effects on the enzymatic rates of BG in the different R. irregularis lines, but this difference was not significant within a single fungus line. No significant effects were found on enzymatic rates of LA and FAc, associated with genetic variability of R. irregularis. Similarly, phosphate fertilization did not influence these enzymes. This study provides insights of how biochemical soil quality indicators contribute to monitor mycorrhizal fungal inocula on agroecosystems, in order to take advantage of their ecosystemic services. In conclusion, it is necessary to expand our research defining phosphate levels for optimal performance of each R. irregularis genetic line under field conditions. Extensive and local monitoring is required to evaluate possible impacts on COT, as well as an improvement of monitoring techniques in terms of processing capacity. This is the first time that the enzymatic activities of BG, LA and FAc were monitored on a commercial cassava crop inoculated with R. irregularis in Kenya. The results reported here provide important comparative background for further studies...
The rhizosphere is very important in plant health and growth. As an integrated ecosystem it hosts all sorts of microorganisms that participate in plant defense, ecosystem diversity enrichment, nutrient availability and plant growth promotion. The use of mycorrhizal fungi Rhizophagus irregularis in agroecology is an attractive strategy because the fungus makes phosphate more available to plants, and this potentially decreases the need to fertilize. This is very useful, especially in tropical environments where the levels of phosphate are low. The presence of mycorrhizal fungi greatly increases crop productivity. This is especially important in cassava (Manihot esculenta) because this crop feeds a great part of the human population, including regions with recurrent starvation episodes. Even though R. irregularis is a ubiquitous organism, its large and complex genomic variability could cause different effects in soil microbiome. Because mycorrhizal fungi also exhibit an impact on soil structure, it is possible that they will affect the organic matter availability to microorganisms in soils, affecting soil respiration rates or enzymatic activities of the soil microbial community. All these possible impacted factors by mycorrhizal presence are important soil quality indicators, whose monitoring is crucial to assure a healthy agroecosystem. It was hypothesized that the genetic variability between R. irregularis lines impacts soil quality indicators such as soil respiration, enzymatic activities, total organic carbon and microbial biomass, depending on the level of phosphate fertilization used, on in situ cassava crops in Kenya. In order to determine their impact, the effects of four highly variable R. irregularis strains on soil quality indicators where studied after their application in cassava crops in Kenia. The first aim was to evaluate the impact of the variability between strains on the microbial biomass (Cmic) and total organic carbon (COT) of the soil. The fumigation method with chloroform and analysis of elemental carbon was used. Results suggested that there is no significant influence on the COT and Cmic associated to the genetic variability of R. irregularis. This appears to be independent of the phosphate fertilization level. The second aim was to compare soil respiration after inoculation of the different strains. CO2 release was measured by incubation of soil in hermetic glass vials. Measurements indicated that phosphate levels influence CO2 release of genetically variable R. irregularis lines. However, phosphate level did not influence the differential effect within a single R. irregularis line. The third aim was to evaluate the effect of the inoculation of the different lines on enzymatic activities of β-glucosidase (BG), leucine-aminopeptidase (LA) and acid phosphatase (FAc). Enzymatic reaction rates were measured after the administration of labeled substrates to soil samples. Results obtained suggest that phosphate levels have differential effects on the enzymatic rates of BG in the different R. irregularis lines, but this difference was not significant within a single fungus line. No significant effects were found on enzymatic rates of LA and FAc, associated with genetic variability of R. irregularis. Similarly, phosphate fertilization did not influence these enzymes. This study provides insights of how biochemical soil quality indicators contribute to monitor mycorrhizal fungal inocula on agroecosystems, in order to take advantage of their ecosystemic services. In conclusion, it is necessary to expand our research defining phosphate levels for optimal performance of each R. irregularis genetic line under field conditions. Extensive and local monitoring is required to evaluate possible impacts on COT, as well as an improvement of monitoring techniques in terms of processing capacity. This is the first time that the enzymatic activities of BG, LA and FAc were monitored on a commercial cassava crop inoculated with R. irregularis in Kenya. The results reported here provide important comparative background for further studies...
Modelo de articulación territorial para el campus Antumapu de la Universidad de Chile
(Universidad de Chile, 2018)
........................................................................................................................ 13
Principios FAO para una agricultura y alimentación sostenibles ................................. 14
La agroecología: una mirada compleja a los sistemas agrícolas .................................. 16
Educación...
Caracterización de sistemas productivos desde un enfoque de género, en familias pertenecientes a la comuna de Canela, IV Región, Chile
(Universidad de Chile, 2006)
Desarrollo Sostenible (García, 1999; Parada,
2006a).
La alternativa agroecológica
Dentro de esta línea, la agroecología nace como una estrategia de innovación
tecnológica ambientalmente sana, económicamente viable y que sirve a las
necesidades reales de...
la población rural pobre (Altieri y Yurjevic, 1991). Agroecología se define como "un enfoque que propone un conjunto de principios científicos avalados por las ciencias de la agricultura y de la ecología, para diseñar y manejar sistemas...
la población rural pobre (Altieri y Yurjevic, 1991). Agroecología se define como "un enfoque que propone un conjunto de principios científicos avalados por las ciencias de la agricultura y de la ecología, para diseñar y manejar sistemas...
La agricultura ecológica como parte de la estrategia de desarrollo rural sostenible en Andalucía
(Fundación Pública Andaluza Centro de Estudios Andaluces, 2011)
) ......................................................................................................26
4. Agroecología ...................................................................................................................................28
B. Motivaciones para el desarrollo de la producción ecológica...
.............................................................................................................................69 4.2. Red de Agroecología de Uruguay ...............................................................................................70 4.3. Nature et Progrès...
.............................................................................................................................69 4.2. Red de Agroecología de Uruguay ...............................................................................................70 4.3. Nature et Progrès...
Semilla: El corazón del agro. Su situación en Chile y los organismos implicados en su conservación, regulación y defensa
(Universidad de Chile, 2019-05)