Soil Sciences
Mostrando 25-36 de 45 artigos, teses e dissertações.
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25. Biologia e manejo da planta daninha Borreria densiflora DC. / Biology and management of the weed Borreria densiflora DC.
The weed vassourinha-de-botao (Borreria densiflora DC.) has been presenting increase in its infestation in areas cultivated with sugarcane and soybean, respectively in Maranhao and Goias states and north of Tocantins state, Brazil. Field observations have reported the control deficiency of this species, when it occurs in advanced growth stage. Thus, this res
Publicado em: 2008
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26. Conhecimentos na análise de ambientes: a pedologia e o saber local em comunidade quilombola do norte de Minas Gerais / Knowledge in the environment analysis: the pedology and local knowledge in the quilombola community on northern Minas Gerais
Theren increasing incorporation and appropriation of the epistemologies towards the sustainability, valorization of the man-environment relationships and the perception of the need for maintaining the complexity of the productive systems in response to the environmental degradation process, aggravated by practices of the reductionist paradigms. Local knowled
Publicado em: 2008
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27. Fotossíntese, osmorregulação e crescimento inicial de quatro variedades de cana-de-açúcar submetidas à deficiência hídrica. / Photosynthesis, osmorregulation and initial growth of four sugarcane varieties submitted to water deficiency.
The water deficiency of soil is a problem that affects good part of the areas cultivated in the world, over all, to those situated ones in the half-barren regions. The sugarcane is a culture in expansion in the Northeast of Brazil, where the limitation in the water availability for the plant affects the growth and the development of the plant, causing, exces
Publicado em: 2008
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28. ABSORÇÃO DE FÓSFORO POR PLANTAS DE SOJA, COM O AUMENTO DO pH EM LATOSSOLOS ARGILOSOS / AVAILABILITY OF PHOSPHORUS IN TWO CLAYEY LATOSOILS AND ITS ACCUMULATION IN SOYBEAN AS A FUNCTION OF THE INCREASE IN PH
To take better advantage of the P applied along the year and of the soil residual by the adequate use of lime, especially in soils cultivated and manured for many years, may be an economically viable practice, as lime is much less expensive than phosphate fertilizers, which may imply important increment in the profit margin for the farmer. Two experiments we
Publicado em: 2006
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29. AVAILABILITY OF PHOSPHORUS IN TWO CLAYEY LATOSOILS AND ITS ACCUMULATION IN SOYBEAN AS A FUNCTION OF THE INCREASE IN PH / ABSORÇÃO DE FÓSFORO POR PLANTAS DE SOJA, COM O AUMENTO DO pH EM LATOSSOLOS ARGILOSOS
To take better advantage of the P applied along the year and of the soil residual by the adequate use of lime, especially in soils cultivated and manured for many years, may be an economically viable practice, as lime is much less expensive than phosphate fertilizers, which may imply important increment in the profit margin for the farmer. Two experiments we
Publicado em: 2006
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30. EFEITO DE LÂMINAS DE ÁGUA APLICADAS COMO IRRIGAÇÃO SUPLEMENTAR NO CICLO DO MILHO SAFRINHA SOB PLANTIO DIRETO NA REGIÃO DE DOURADOS-MS
The knowledge of the amount of water requested by the cultures it is constituted in important aspect in the irrigated agriculture so that the development of the plants happens in a satisfactory way. Several works show the importance of the irrigation as mechanism to supply possible hydrics deficiencies during the physiological cycle of the cultures, revealin
Publicado em: 2006
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31. EFEITO DE LÂMINAS DE ÁGUA APLICADAS COMO IRRIGAÇÃO SUPLEMENTAR NO CICLO DO MILHO SAFRINHA SOB PLANTIO DIRETO NA REGIÃO DE DOURADOS-MS
The knowledge of the amount of water requested by the cultures it is constituted in important aspect in the irrigated agriculture so that the development of the plants happens in a satisfactory way. Several works show the importance of the irrigation as mechanism to supply possible hydrics deficiencies during the physiological cycle of the cultures, revealin
Publicado em: 2006
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32. Between the scientific research and the technological innovation: the challenge of transforming knowledge into development / Entre a pesquisa cientÃfica e a inovaÃÃo tecnolÃgica: o desafio da transformaÃÃo de conhecimento em desenvolvimento.
The subject of this work is the process of innovation that occurs from scientific knowledge produced in the university. The main purpose was to investigate the history of two innovation processes and to develop a partial heuristic that will work as a reference for the formularization of politics and practices of innovation in the university context. To reach
Publicado em: 2006
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33. Urban expansion and geomorfological expansion in backwater of reservatories: comparative analisis of two drainage basins that are in the source of Guarapiranga, São Paulo / Expansão urbana e evolução geomorfológica em remansos de reservatórios: análise comparativa de duas bacias hidrográficas em guarapiranga, São Paulo
The environmental problems created by the accelerated urban growth in the last fifty years have brought severe consequences to the group of people living in big urban centers. For this reason many scientists, mainly in the field of Earth sciences, have searched the development of new techniques, methodologies and parameters to measure, recognize and attenuat
Publicado em: 2006
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34. Influência da aplicação do lodo de esgoto (Biossólido) sobre a concentração e o estoque de nutrientes na biomassa do sub-bosque, na serapilheira e no solo de um talhão de E. grandis. / Influence of sewage sludge application (biosolids) on the concentration and stock of nutrients in the understory biomass, litter and soil in a stand of Eucalyptus grandis.
The increasing of urban population generates the need for an ecological and social acceptable disposal of sewage sludge produced by waste treatment plants. Therefore, the use of the sewage sludge (biosolid) as fertilizer and soil conditioner in forests plantations may be a suitable solution, becoming possible the increment of renewable wood production. Howev
Publicado em: 2005
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35. ProduÃÃo de FeijÃo Caupi (Vigna unguiculata (L.) Walp)AtravÃs da InfiltraÃÃo Subsuperficial de Esgoto DomÃstico em Solo Arenoso. / COWPEA BEANS PRODUCTION (Vigna unguiculata (L.) Walp), THROUGH THE SUB-SUPERFICIAL INFILTRATION OF DOMESTIC SEWAGE INTO SANDY SOIL
The production of cowpea beans (Vigna unguiculata (L.) Walp.) was evaluated in a real scale in this research project, by using the disposal of domestic sewage into the soil through the sub-superficial infiltration. The research was carried out during two periods. The first one was in the rainy season from January to April, and the second one in the dry seaso
Publicado em: 2005
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36. Ciclagem de nutrientes após aplicação de lodo de esgoto (Biossólido) sobre latossolo cultivado com Eucalyptus grandis / Nutrients cycling after sewage sludge (biosolid) apllication on oxisol planted with Eucalyptus Grandis
The treatment of wastewaters generates the sewage sludge, a residue that could be used to increase the productivity of both farming and forest plantations. The general aim of this work was to evaluate how biosolid affects the biogeochemistry of nutrients at an Eucalyptus grandis plantation. The study site is at the Experimental Station of Itatinga, linked to
Publicado em: 2005