Irrigated Agriculture
Mostrando 13-24 de 77 artigos, teses e dissertações.
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13. Composting sewage sludge with green waste from tree pruning
Sewage sludge (SS) has been widely used as organic fertilizer. However, its continuous use can cause imbalances in soil fertility as well as soil-water-plant system contamination. The study aimed to evaluate possible improvements in the chemical and microbiological characteristics of domestic SS, with low heavy metal contents and pathogens, through the compo
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-10
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14. Efficiency of water application of irrigation systems based on microsprinkling in banana plantations
Further food production may be limited by the reduced availability of water resources. Since irrigated agriculture is the productive sector that presents a higher demand of water, this sector has been under intense pressure in order to ensure food production with improved efficiency of water use. This study aimed to use the Time Domain Reflectometry (TDR) te
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-06
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15. 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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16. AGRICULTURA IRRIGADA, MEIO AMBIENTE E INTERVENÇÕES PÚBLICAS NO TERRITÓRIO DO ALTO SERTÃO SERGIPANO. / IRRIGATED AGRICULTURE, ENVIRONMENT AND PUBLIC INTERVENTION IN THE TERRITORY OF THE HIGH SERTÃO SERGIPE.
From the theme "Irrigated Agriculture, Environment and Public Interventions in the High Wilderness Territory Sergipe", aimed to analyze from categories such as geographical territory, space and landscape from the conditions of public assistance projects in California, New California Gator Curituba and, with respect to their agriculture, their environment and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2011
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17. Monitoramento de agrotóxicos em áreas irrigadas por pivô central na microbacia do Tijunqueiro, município de Morrinhos, Goiás / Pesticides monitoring in irrigated areas by central pivot in the Tijunqueiro Watershed municipality of Morrinhos, Goias
The importance of pesticides to the agricultural system production is indisputable, since they are part of the basics inputs, however, it is essential that they be used properly to be preserved not only the quality of the growing product, but also of their own natural resources, especially soil and water. In this study was conducted the pesticides monitoring
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/08/2011
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18. Método do tanque Classe A para irrigação da soja, cultivar Sambaíba, no Cerrado.
ABSTRACT: Efficient use of water resources is the key to guarantee suply for future human consumption and irrigation. In the irrigated areas of the Cerrado region pressurized irrigation systems allow high efficiency in water conduction. However, lack of knowledge in crop water requirement determine inadequated crop water management. Negative effect on crop d
Planaltina. Publicado em: 2011
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19. Método do tanque Classe A para irrigação da cevada, cultivar BRS 195, no cerrado.
ABSTRACT: Efficient use of water resources is the key to guarantee water suply for future human consumption and irrigation. in the irrigated areas of the Cerrado region pressurized irrigation systems allow high efficiency in water conduction. However, lack of knowledge in crop water requirement determine inadequated crop water management. Negative effect on
Planaltina. Publicado em: 2011
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20. Procedimento para estimativa da intensidade de precipitação máxima admissível em pivô-central com base nas características do equipamento e do solo.
ABSTRACT: A procedure to estimate the center pivot maximum application rate, based on equipment and soil characteristic is presented. It was developed to minimize the surface runoff. To achieve this objective, the Green and Ampt (GA) infiltration equation was modified to include surface sealing and surface storage. The highest application rate is determined
Planaltina. Publicado em: 2011
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21. Computational modeling for irrigated agriculture planning. Part I: general description and linear programming.
Modelos de programação linear são ferramentas eficazes de suporte ao planejamento inicial ou periódico de empreendimentos agrícolas, requerendo, todavia, coeficientes técnicos que podem ser obtidos por modelos computacionais de simulação. Este trabalho, dividido em duas partes, aborda o desenvolvimento, a aplicação e os testes de metodologia e da m
Engenharia Agricola. Publicado em: 2011
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22. Computational modeling for irrigated agriculture planning. Part II: risk analysis.
Técnicas de avaliação de riscos procedentes de incertezas inerentes à atividade agrícola devem acompanhar os estudos de planejamento. A análise de risco pode ser desempenhada por meio de simulação, utilizando técnicas como o método de Monte Carto. Neste trabalho, teve-se o objetivo de desenvolver um programa computacional, denominado P-RISCO, para
Engenharia Agricola. Publicado em: 2011
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23. Manejo de irrigação e fertilização nitrogenada para a cultura do algodoeiro na região do cerrado.
RESUMO: O objetivo deste trabalho foi estabelecer o manejo de irrigação que associado a doses e épocas de aplicação de nitrogênio possibilite elevadas produções de algodão com qualidade compatível com as exigências de mercado, visando ao sucesso da agricultura irrigada da Região do Cerrado. O manejo das irrigações foi feito com base em mediaç�
Planaltina. Publicado em: 2011
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24. Efeitos da aplicação de glifosato na química de solos alagados / Effects of glyphosate on the chemistry of flooded soils
This study aimed to evaluate the effects of the herbicide glyphosate in the chemistry of the flooded soils in two humid tropical areas included in the Brazilian savanna, observing these effects in the solid fraction and the soil solution. We used soil from an area of lowland irrigated rice cultivation and a preserved area of path, constituting, respectively,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/09/2010