Maximum Economical Efficiency
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Forage sorghum-legumes intercropping: effect on growth, yields, nutritional quality and economic returns
ABSTRACT Cereal-legumes intercropping is among the most economical and effective agronomic strategies to boost forage biomass production, nutritional quality and monetary returns. This review synthesizes the research findings on how intercropping affects productivity, quality, competitiveness and economic viability of sorghum-legumes mixed, row and strip int
Bragantia. Publicado em: 03/12/2018
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2. When nanotechnology meets filteration: From nanofiber fabrication to biomimetic design
Nanotechnology for the scientific and economical revival is of indispensable importance, and the so-called nano-age or nano-industrialization is coming. The paper reveals the very frontier of nanotechnology in mass-production of nanofibers, and the bubble-electrospinning is introduced, and its application to filteration is emphasized. By mimicking the struct
Matéria (Rio J.). Publicado em: 2014-12
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3. Identificação dos fatores críticos da colheita mecanizada de cana-de-açúcar (Saccharum spp.) / The identification of the critical factors of sugarcane (Saccharum spp.) mechanized harvesting
The sugar cane has significant role on Brazilian agribusiness economy. Its sub products are used for electric power generation, fuel production, as raw material for food and chemical industry. On sugarcane production, harvesting is considered as one of the most important operations of the process for it has to attend the raw material demanded by the sugar mi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/10/2011
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4. Evaluation of activated vegetal charcoal and vegetal polymer on the detoxification of the sugarcane hemicellulosic hydrolysate for biotechnological production of xylitol / Avaliação do carvão vegetal ativado e polímero vegetal na destoxificação do hidrolisado hemicelulósico de bagaço de cana-de-açúcar para a produção biotecnológica de xilitol
The increasing search for ethanol fuel in order to reduce the dependence and to promote the substitution of fossil fuels will contribute to higher accumulation of sugarcane bagasse in the environment. This biomass that in Brazil is a by-product of the sugar-alcohol mills, although it has been used for the generation of energy in the sugar and alcohol product
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2010
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5. BioacumulaÃÃo de Ãons de Pb+Â na macrÃfita Salvinia auriculata / Of the lead ions bioaccumulation process by living aquatic macrophytes Salvinia auriculata
In this work was carried out a study of the lead bioaccumulation process by living aquatic macrophytes Salvinia auriculata. Initially, they were performed toxicological and growing tests in order to determine the non-toxic lead concentration limits and the minimum amount of biomass for the lead uptake experiment duration. The bioaccumulation experiment was p
Publicado em: 2008
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6. Nitrogen, phosphorus and potassium recommendation for sunflower under no-tillage system in Paraguay / RECOMENDAÇÃO DE NITROGÊNIO, FÓSFORO E POTÁSSIO PARA GIRASSOL SOB SISTEMA PLANTIO DIRETO NO PARAGUAI.
Sunflower crop has some important agronomic characteristics, as great fitomassa production, larger resistance to the drought, cold and heat than most of the cultivated species and wide adaptability to different conditions of soil and climates. Its deep root system provides absorption of nutrients of the deepest layers, ciclying great amounts of nitrogen (N),
Publicado em: 2008
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7. Contribuição à inspeção, diagnóstico e procedimento de reabilitação de poste de concreto armado centrifugado utilizado em telefonia celular. / Contribution to the inspection, diagnosis and rehabilitation procedure of centrifugally cast concrete post used in telecomunication market.
Precast reinforced concrete posts were installed in Brazil by mobile telephone companies when implanting and enlarging service areas of the system starting in 1996. The great majority of these posts were manufactured by a single company, using a centrifugal process. Approximately two thousand units of posts were produced of heights ranging between 20m [60 ft
Publicado em: 2007
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8. CARACTERIZAÇÃO DA VARIABILIDADE ESPACIAL DAS CARACTERÍSTICAS QUÍMICAS DO SOLO E DA PRODUTIVIDADE DAS CULTURAS, UTILIZANDO AS FERRAMENTAS DA AGRICULTURA DE PRECISÃO. / CHARACTERIZATION OF THE SPATIAL VARIABILITY OF THE SOILS CHEMICAL CHARACTERISTICS AND PRODUCTIVITY OF CULTURES, USING THE TOOLS OF PRECISION AGRICULTURE.
In this work were investigated the spatial variability existent on the soil attributes utilized for soil fertility evaluation and its grade of participation on the yield crop variability. An experiment was conducted over five years (2000 to 2005) in an area of 57 ha in the municipality of Palmeira das Missões in a Latossolo Vermelho distrófico típico (EMB
Publicado em: 2006
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9. O sistema de plantio direto : caminhos e descaminhos no município de Cândido Mota, São Paulo
Since its implementation, the no tillage system has represented a great evolution for tropical agriculture, mainly in soil conservation, making it possible the incorporation of extensive areas in the production of grains and cereals. The increasing development of scientific knowledge and interest concerning no tillage system practices considering its environ
Publicado em: 2006
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10. AnÃlise energÃtica experimental e estudo da viabilidade econÃmica de um grupo gerador de 30 kWe A gÃs natural em diferentes nÃveis e tipos de cargas elÃtricas
Due to the lack of investment in the Brazilian electricity sector, together with the increment of the economy, there is a great possibility of new electricity rationing in 2007. This energy shortage imposes that the companies, which do not intend to have a reduction in their production capacity, supply their own electricity. One of the main options is the el
Publicado em: 2005
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11. Sizing procedure of solar heating systems for agricultural products drying / Metodologia de dimensionamento de sistemas de aquecimento solar para secagem de produtos agricolas
A solar collector design procedure was proposed for sizing solar assisted crop-drying systems using empiric correlations, previously found, to determine the solar fraction supplied by the system. A case study of an in-bin crop drying was accomplished in the city of Campinas - SP with pre-heating of the air through a solar collector complemented by convention
Publicado em: 2004
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12. Produção de forragem e transformações do nitrogênio do fertilizante em pastagem irrigada de capim Tanzânia. / Herbage production and transformations of the fertilizer nitrogen in irrigated tanzania grass.
Whilst grazing management is a key component in pastoral systems little effort has been made to determine the adequate grazing intensity for tropical pastures, especially under irrigated conditions. The economical attractiveness of irrigated pasture systems depends on high pasture productivity, meaning that fertilizer nitrogen (N) must be used. However, to m
Publicado em: 2003