Coffee Plantations
Mostrando 1-12 de 51 artigos, teses e dissertações.
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1. Composición y estructura del dosel de sombra en sistemas agroforestales con café de tres municipios de Cundinamarca, Colombia
Abstract The composition and structure of the shade canopy in coffee plantations of the municipalities of Tibacuy, Pacho and San Juan de Rioseco, in Cundinamarca, Colombia, were studied. Fifteen (15) farms in each municipality were selected and, in each farm, a coffee plantation (Coffea arabica cv. Castillo), in which it was established a plot of 1000 m2, wh
Ciênc. Florest.. Publicado em: 30/09/2019
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2. Os cisnes cantam e a onda verde passa Os congressos agrícolas de 1878 e a demanda da lavoura por capitais
Resumo Analisamos os Anais dos Congressos Agrícolas realizados em 1878: em julho no Rio de Janeiro e em outubro no Recife. Comparamos os distintos processos de convocação desses eventos. Depois, voltamos nossa atenção às discussões sobre a carência ou não de capitais disponíveis à grande lavoura, bem como acerca das sugestões no sentido de estimu
Econ. soc.. Publicado em: 29/08/2019
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3. Effect of Inoculation of Pineapple Plantlets with Arbuscular Mycorrhizal Fungi Obtained from Different Inoculum Sources Multiplied by the On-Farm Method
ABSTRACT The production of inoculum from arbuscular mycorrhizal fungi (AMF) at a large scale and low cost is essential for establishing methods to assist in producing pineapple plantlets with high nutritional and phytosanitary quality. However, this objective is difficult to accomplish because of the biotrophic nature of these fungi. The on-farm multiplicati
Rev. Bras. Ciênc. Solo. Publicado em: 15/08/2019
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4. Diversity and abundance of green lacewings (Neuroptera: Chrysopidae) in a Conilon coffee plantation in Acre, Brazil
RESUMO Coffea canephora (café Conilon) tem grande importância econômica para o estado do Acre, porém o uso de inseticidas nessa cultura tem aumentado consideravelmente nos últimos anos. A fim de prospectar espécies de Chrysopidae (Neuroptera) com potencial para uso em programas de controle biológico de pragas dessa cultura, nós amostramos crisopídeo
Acta Amaz.. Publicado em: 12/08/2019
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5. Soil Macrofauna and Edaphic Properties in Coffee Production Systems in Southern Colombia
ABSTRACT The objective of this study was to evaluate the occurrence of the soil macrofauna in coffee production systems, as well as their relationship with edaphic properties. Therefore, two coffee production systems were selected: coffee plantations at full-sun with conventional management (Intensive) and shaded coffee plantations with organic management (T
Floresta Ambient.. Publicado em: 01/07/2019
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6. Mitigation Of Climate Change Of Coffee Production Systems In Cundinamarca, Colombia
ABSTRACT Production systems with woody perennial plants, ideally timber trees, are technologies accepted in carbon (C) projects to mitigate climate change. This research had as purpose the estimation of C storage and fixation in coffee production systems in Cundinamarca, Colombia. Carbon in biomass, necromass and soil were estimated in coffee plantations wit
Floresta Ambient.. Publicado em: 01/07/2019
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7. VISUALIDADE E ADMINISTRAÇÃO DO TRABALHO ESCRAVO NAS FAZENDAS DE CAFÉ E ENGENHOS DE AÇÚCAR DE BRASIL E CUBA, C.1840-1880
Resumo O objetivo deste artigo é compreender como os novos mecanismos de administração do trabalho escravo elaborados nas fronteiras açucareiras e cafeeiras de Cuba e do Brasil do século XIX se relacionaram com uma nova visualidade da escravidão. O artigo argumenta que é possível identificar um feixe de novas estratégias mobilizadas para extrair mai
Estud. hist. (Rio J.). Publicado em: 25/04/2019
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8. Spatial variability of coffee plant water consumption based on the SEBAL algorithm
ABSTRACT: Awareness of evapotranspiration (ET) and crop coefficient (Kc) is necessary for irrigation management in coffee crops. ET and Kc spatial variabilities are disregarded in traditional methods. Methods based on radiometric measurements have potential to obtain these spatialized variables. The Kc curve and spatial variability of actual evapotranspirati
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-04
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9. First report of mixed infection by Pseudomonas syringae pathovars garcae and tabaci on coffee plantations
ABSTRACT The bacterial-halo-blight (Pseudomonas syringae pv. garcae) is disseminated by the main coffee areas in the producing states of Brazil. On the other hand, the disease bacterial-leaf-spot (Pseudomonas syringae pv. tabaci) was reported only once in coffee seedlings in a sample collected in the State of São Paulo. In mid-2015, samples of coffee leaves
Bragantia. Publicado em: 14/08/2017
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10. Dispersal capacity of fruit fly parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae) in irrigated coffee plantations
ABSTRACT Diachasmimorpha longicaudata is an Old World parasitoid of tephritid fruit flies that was widely introduced in the Americas to control pest species such as the Mediterranean fruit fly Ceratitis capitata. Augmentative releases in irrigated coffee plantations in semiarid regions of Brazil are under consideration and dispersal capacity of D. longicauda
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-06
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11. Agroforestry systems, nutrients in litter and microbial activity in soils cultivated with coffee at high altitude
Agroforestry systems are an alternative option for sustainable production management. These systems contain trees that absorb nutrients from deeper layers of the soil and leaf litter that help improve the soil quality of the rough terrain in high altitude areas, which are areas extremely susceptible to environmental degradation. The aim of this study was to
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-04
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12. Temperatura de la superficie terrestre en diferentes tipos de cobertura de la Región Andina Colombiana
This study assessed the relationship of Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) with land surface temperature (LST), using Landsat images of La Vieja river watershed, in the Andean region of Colombia. We evaluated land covered by Andean forest, forest plantation, coffee, pasture and urban area. Negative corr
Soc. nat.. Publicado em: 2014-01