Soil Physical Chemistry
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Soil Chemistry after Irrigation with Treated Wastewater in Semiarid Climate
ABSTRACT Soil irrigation using treated wastewater in the Brazilian semiarid region is a promising practice as this area currently faces water scarcity and pollution of water resources by domestic sewage. The aim of this study was to evaluate the use of treated wastewater in drip irrigation and its effect on the chemistry of soil cultivated with squash (Cucur
Rev. Bras. Ciênc. Solo. Publicado em: 31/05/2016
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2. Spatial variability of some biometric attributes of sugarcane plants (variety IACSP93-3046) and its relation to physical and chemical soil attributes.
Tests to evaluate competition between plants, in general do not consider the soil spatial variability, nevertheless, the uniformity rarely is present and can not be assumed without verification. The aim of this work was to apply geostatistics to verify the spatial variability of the soil in an experimental field near Ribeirão Preto, SP, with sugarcane varie
Bragantia. Publicado em: 2011
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3. Study for use the wastes of the paper manufacture in the road construction / Estudo para a utilização de resíduo da fabricação de papel na construção rodoviária
The paper and pulp industry represent one of the most expressive industrial sector around the world, being of great importance to the world economy. In South America, because of the wide forest resources, Brazil and Chile are the largest pulp-producing. Brazil produces around 6 million tons of pulp per year, among which 98% of the pulp are produced by the bl
Publicado em: 2010
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4. Estoques de biomassa e de nutrientes de pousios enriquecidos com Inga edulis Martius em áreas com histórico de agricultura e de pecuária no Assentamento Tarumã-Mirím, Manaus- AM / Stocks of biomass and nutrients in forest fallow enriched with Inga edulis Martius in sites with a history of agriculture and pasture in the rural settlement Tarumã-Mirím, Manaus - AM
Deforestation rates of primary forests in the humid tropics have been growing intensively in recent years, due mainly to the development of shifting cultivation and extensive pasture. After forest fragmentation and conversion to agricultural use, the cleared areas of rainforest are usually abandoned so there is natural regeneration of vegetation and slow res
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/12/2009
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5. Vegetation and soil gradient in the restinga forest in Espirito Santo, Brazil / Gradiente vegetacional e pedológico em floresta de restinga no Espírito Santo, Brasil
The Restingas are ecosystems that occur in sandy soils deposited during the Quaternary. These are known to have a high diversity of vegetation, but few studies provide information on abiotic factors determining this diversity. This study aimed to: (i) assess the influence of the chemical aspects, physical soil and flooding in phytophysionomic determination,
Publicado em: 2009
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6. Relações solo-vegetação no Parque Nacional da Serra do Cipó, Espinhaço Meridional, Minas Gerais / Soil vegetation relationships in the National Park Serra do Cipó, in Espinhaço Meridional, Minas Gerais
The region of Serra do Rio Cipó, in the southern part of the Serra do Espinhaço, comprises large areas of Cerrado, Atlantic forest, forest islands and one of the richest high-altitude rocky vegetation in Brazil. The ecotonal character between the Cerrado and Atlantic Forest biomes, described in many studies of regional flora and fauna, is one of the factor
Publicado em: 2009
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7. Fitossociologia e florística do componente arbóreo em toposseqüência na reserva biológica de Saltinho, Pernambuco.
The forests have these characteristics phytosociological and floristic alter due to the complexity of factors that environment, therefore, study of species-related relief and soils it is necessary for a greater understanding of these relationships. The present work aimed to analyze the structure phytosociological and floristic in the toposequence on a patch
Publicado em: 2009
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8. Alterações químicas, físicas e biológicas de latossolos vermelhos com cana-de-açucar
A cana-de-açúcar é atualmente uma das culturas de maior importância econômica e social no Brasil, com vistas à produção de açúcar e obtenção de energia alternativa que possa diminuir a dependência de fontes de energia não renováveis e mais poluentes como o petróleo. Existem evidências que mostram que o cultivo contínuo com cana-de-açúcar
Publicado em: 2009
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9. Métodos alternativos de determinação de parâmetros físicos do solo e uso de condicionadores químicos no estudo da qualidade do solo / Alternative methods to determination of soil physical properties and use of chemistry conditioners at soil quality study
Alguns dos mais freqüentes parâmetros utilizados como indicadores de qualidade do solo são: resistência tênsil de agregados (RT); densidade do solo (Ds); textura e curva de retenção de água do solo (CRAS). O objetivo deste estudo foi avaliar e desenvolver métodos para a determinação destes parâmetros e testar o uso de condicionadores químicos na
Publicado em: 2008
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10. O papel da transferência de tecnologia no incremento da renda dos produtores rurais da região de Cafelândia, PR
Nas regiões produtoras de soja, milho e trigo do Estado do Paraná, predominam pequenos e médios produtores, os quais necessitam de assistência técnica efetiva que possibilite o acesso a conhecimentos e tecnologias que resultem em melhoria de renda e qualidade de vida. Nessas regiões havia disponibilidade de agentes de Assistência Técnica e Extensão
Publicado em: 2008
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11. Estudo geoquímico da bacia do ama e avaliação da qualidade de água
The quality of water in a drainage basin reflects the natural processes of a water catchment and the changes of environmental conditions reflect on physical and chemical water chemistry. The present work was realized in two drainages on Gama Catchment, Gama brook and Cedro stream, whose waters discharge into Paranoá Lake (Brasília, Federal District). The a
Publicado em: 2008
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12. Effect of age of the wood of eucalyptus in its chemical and pulpability, and bleachability and properties of the pulp / Efeito da idade da madeira de eucalipto na sua química e polpabilidade, e branqueabilidade e propriedades físicas da polpa
The concern about the quality of the wood that enters a cellulose factory has been focused on many studies, once the productive process and final product are under great influence of the original raw material. Considering the demand for younger trees, the effect of the age of the wood in the chemical constitution and the variables of the process, as well as
Publicado em: 2008