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Browsing Artigos by Title
Now showing items 442-461 of 634
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(Ciência Florestal, 2012-07)The 3-PG model is an effective tool for determining the productive productivity of eucalypt plantations. However, the model parameterizations available today produce underestimated results when they are applied to Cerrado ...
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(Geoderma, 1996-05)A toposequence of soils with columnar structure in the Paricarana catchment (Roraima State, north Amazonia) was studied. The soils occur within the driest part of tropical Amazonia. The two soils in the lower positions are ...
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(Geoderma, 2002-06)Little is known about the soil distribution on quartzitic uplands of Brazil. The Diamantina Plateau, where deeply weathered oxisols (latosols) and shallow sandy soils occur side by side, represents part of the higher and ...
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(Revista Brasileira de Ciência do Solo, 2016-11-01)Despite the considerable amount of information on the mineralogical characteristics of pedogenic Fe oxides in Brazilian soils, there are few studies on Fe-rich soils developed from mafic rocks with taxonomic identities at ...
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Pedogênese e classificação de latossolos desenvolvidos de itabiritos no Quadrilátero Ferrífero, MG (Revista Brasileira de Ciência do Solo, 2013-08-07)Localizado na porção centro-oeste do Estado de Minas Gerais, o Quadrilátero Ferrífero abrange uma área de aproximadamente 7.000 km2. Desde o século XVII, a região é conhecida como uma província aurífera e ferrífera, sendo ...
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(Revista Árvore, 2002-06-20)No intuito de contribuir para o estudo da biodiversidade em um bioma importante como é a Mata Atlântica, algumas considerações são feitas dentro da visão pedológica. Enfoca-se a questão dos diversos fatores que podem influir ...
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Penguin activity modify the thermal regime of active layer in Antarctica: A case study from Hope Bay (CATENA, 2017-02)Monitoring permafrost and active layer is essential for prognostic research of future climate scenarios. Although biotic factors have a prominent role in active layer behavior, apart from vegetation effects, their influence ...
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(Revista de Economia e Sociologia Rural, 2013-04)O crescimento do mercado de alimentos livres de agrotóxicos vem gerando interesse de agricultores em sistemas orgânicos de produção. Os adeptos deste sistema promovem mudanças substanciais de seus métodos de produção, ...
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(Revista Brasileira de Ciência do Solo, 2009-03)Plantios florestais de Acacia mangium constituem uma alternativa cada vez mais adotada em áreas de savanas do norte da Amazônia (Roraima) e podem causar alterações significativas de características do solo. Neste sentido, ...
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(Pesquisa Agropecuária Brasileira, 2002-05)Estudo experimental com simulador de chuva foi conduzido em área de Argissolo Vermelho-Amarelo caulinítico, em Viçosa, MG, com intensidade de precipitação de 60 mm h-1 e seis aplicações sucessivas, espaçadas de 12 horas. ...
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(Semina: Ciências Agrárias, 2018-05)Sugarcane cultivation using pre-sprouted seedlings has decreased the number of stalks used per hectare, increased the multiplication rate, improved seedling health, and increased planting uniformity. However, because this ...
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(Revista Brasileira de Ciência do Solo, 1998-04)O grau de persistência do fungicida triadimenol, que é utilizado intensamente no controle da ferrugem do cafeeiro, foi avaliado em amostras de duas classes de solo, Podzólico Vermelho-Amarelo câmbico (PV) e Latossolo ...
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(Revista Brasileira de Ciência do Solo, 2009-10)Boron deficiency causes large productivity losses in eucalypt stands in extensive areas of the Brazilian Cerrado region, thus understanding B mobility is a key step in selecting genetic materials that will better withstand ...
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(Geoderma, 1996-07)Oxisols derived from clayey sediments, sandstone, mafic rocks and schist were sampled in the “Triangulo Mineiro” region, Minas Gerais State, Brazil, to study the relationship between the phosphate adsorption and mineralogy ...
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(Revista Brasileira de Ciência do Solo, 2009-06)Despite the agricultural importance of Indian Black Earth (IBE) in the Amazon region, there are few studies that report on the relation between soil texture and chemical fertility of IBE. These soils of pre-Colombian origin, ...
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(Revista Brasileira de Ciência do Solo, 2013-03-06)Despite the large number of studies addressing the quantification of phosphorus (P) availability by different extraction methods, many questions remain unanswered. The aim of this paper was to compare the effectiveness of ...
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Phosphorus sorption, desorption and resorption by soils of the Brazilian Cerrado supporting eucalypt (Biomass and Bioenergy, 2005-02)Oxisols of the Brazilian Cerrado are highly weathered phosphorus deficient soils, on which eucalypt is increasingly being grown as a source of carbon and energy for steel manufacturing. Phosphorus (P) fertilization is a ...
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(Revista Brasileira de Ciência do Solo, 2012-07-10)Large quantities of poultry litter are being produced in Brazil, which contain appreciable amounts of phosphorus (P) that could be of environmental concern. To assess the immediate environmental threat, five poultry litters ...
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(Revista Brasileira de Ciência do Solo, 2011-05-02)In prehistoric times, innumerous shell middens, called "sambaquis", consisting mainly of remains of marine organisms, were built along the Brazilian coast. Although the scientific community took interest in these anthropic ...
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(Revista Ciência Agronômica, 2018-04)Tailings from bauxite washing produced in Porto Trombetas, Pará state, a Brazilian Amazon region, have chemical and physical characteristics limiting the development of plants, which hinders to revegetate the tanks where ...
Now showing items 442-461 of 634
