Irrigated Land
Mostrando 1-12 de 50 artigos, teses e dissertações.
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1. VEGETATION INDICES FOR IRRIGATED CORN MONITORING
ABSTRACT Monitoring of large agricultural lands is often hampered by data collection logistics at field level. To solve such a problem, remote sensing techniques have been used to estimate vegetation indices, which can subsidize crop management decision-making. Therefore, this study aimed to select vegetation indices to detect variability in irrigated corn c
Eng. Agríc.. Publicado em: 2020-06
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2. SENSITIVITY OF EVAPOTRANSPIRATION ESTIMATED BY ORBITAL IMAGES UNDER INFLUENCE OF SURFACE TEMPERATURE
ABSTRACT Surface temperature (Ts) is a determining factor to obtain energy balance parameters, being relevant to understand the influence of this variable on the estimation of evapotranspiration. Thus, the objective of this study was to simulate errors in Ts estimation to verify the consequences of actual evapotranspiration (ETa) estimated by the SAFER (Simp
Eng. Agríc.. Publicado em: 09/09/2019
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3. 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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4. USE OF USLE/ GIS TECHNOLOGY FOR IDENTIFYING CRITERIA FOR MONITORING SOIL EROSION LOSSES IN AGRICULTURAL AREAS
ABSTRACT The assessment of land use and occupation is essential for predicting soil loss due to water erosion. The objective of this study was to determine criteria for monitoring soil loss in agricultural areas using the Universal Soil Loss Equation (USLE). Soil loss data were intersected with USLE factors and slope using geoprocessing techniques for the Sa
Eng. Agríc.. Publicado em: 2018-01
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5. Análise da eficiência técnica e fronteiras de produção na orizicultura do Rio Grande do Sul e de Mostardas
This work aim at measuring the relative technical efficiency and the frontiers of production in Rio Grande do Sul and Mostardas County irrigated rice production, considering the rice census database carried out by the Rio Grandense Rice Institute (IRGA), harvest 2004/2005. This survey seeks to identify the determining factors of this rice production efficien
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/08/2012
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6. Impacto da implantaçao de perímetros irrigados na qualidade das águas superficiais da porção mineira do médio São Francisco
The irrigation projects Jaíba Gorutuba and Laguna Grande located in the mining portion of the Middle San Francisco, occupying an irrigable area of approximately 31,493 ha. As irrigated agriculture has the potential to contaminate water resources due to deforestation, the application of fertilizers and pesticides, the objective of this research was to invest
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2012
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7. El cultivo de alfalfa utilizando agua de perforación, agua residual urbana y precipitaciones
The objective of this study was to analyse the production of alfalfa biomass, the efficiency of water use and the nutritional value of forage, inside an irrigation structure of an experimental facility that uses treated urban wastewater, artesian well water and rainfall, at the campus of the Universidad National de Rio Cuarto (Córdoba-Argentina). The irriga
Rev. bras. eng. agríc. ambient.. Publicado em: 2012-12
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8. Yield and quality of sugar snap pea in the Ebro Valley: sowing date and seed density
Sugar snap pea (Pisum sativum L. var. macrocarpon Ser.) is an edible-podded sweet pea that is being considered as a new totally mechanized crop to supply raw material to the agri-food industry of the Ebro Valley (Northern Spain). It is of great interest from an agronomic and commercial standpoint but neither its agronomic behaviour nor its adaptation to the
Sci. agric. (Piracicaba, Braz.). Publicado em: 2012-10
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9. Avaliação econômica da terminação de bovinos em pastagem irrigada / Economic evaluation of finishing of cattle in irrigated pasture
The adoption of new technologies with the aim of intensifying the production of beef cattle has increased in recent years. Irrigation of pasture is one of these alternatives on the rise and this study aimed to determine the economic viability of finishing cattle by measuring the production costs and financial indicators. This study evaluated three production
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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10. Análise da Paisagem da Bacia Hidrográfica do Rio Tijucas, SC: Proposta de Áreas Prioritárias para um Sistema de Unidades de Conservação
The analysis of use and land cover is one of the key steps for conducting the strategic planning of conservation of a watershed. This work aims to analyze the landscape of the River Basin Tijucas for purposes of proposed priority areas for implementation of conservation, using as tool the Geographic Information System (GIS), aiming to provide support for pro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/08/2011
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11. Parques agrários no baixo Jaguaribe : arquitetura rural da região dos perímetros irrigados resultante do planejamento de bacias hidrográficas / Agrarian park on lower Jaguaribe : rural architecture in the region of irrigated perimeters resulting from watersheds planning
Human interventions confer throughout history personality and typical characteristics in several regions. In Ceará, the region of the irrigated areas of low Jaguaribe is a good example of the interaction that takes place in the landscape, mainly by human disturbances - which reveals a mastery over nature - and by the landscapes when associated to the histor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/05/2011
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12. EFEITO DO USO DO SOLO NOS ATRIBUTOS FÍSICOS E QUÍMICOS NOS LOTES DO PERÍMETRO IRRIGADO PIAUÍ, MUNICÍPIO DE LAGARTO-SE. / EFFECT OF LAND USE IN THE CHEMICAL AND PHYSICAL ATTRIBUTES LOTS OF IRRIGATED PERIMETER PIAUÍ, CITY OF LAGARTO-SE.
Para que ocorra o desenvolvimento do setor agrícola no Nordeste destaca-se a importância dos perímetros irrigados, pois, além do crescimento econômico gerado no âmbito local, ainda inclui socialmente os pequenos agricultores na cadeia produtiva. À medida que os centros urbanos crescem a demanda por alimentos e matérias primas nos diversos setores aum
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011