Soil Aluminium
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. The effects of two abundant ant species on soil nutrients and seedling recruitment in Brazilian Atlantic Forest
ABSTRACT Ants can influence soil fertility and the spatial distribution of seeds, with possible effects on seedling recruitment. The ant species Pachycondyla striata Fr. Smith, 1858 and Odontomachus chelifer (Latreille, 1802) co-occur in many forest areas in the Neotropics. We assessed soil fertility and seed bank structure in soil samples close and distant
Rev. Bras. entomol.. Publicado em: 13/01/2020
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2. Tolerance of Eucalyptus and Pinus seedlings to exchangeable Aluminium
ABSTRACT: Tolerance to acid soil is an important trait of Eucalyptus and Pinus species introduced into commercial forestry plantations in tropical ecosystems. The objective of this study was to evaluate the effect of the exchangeable Al on growth of the seedlings of two species and one hybrid of Eucalyptus and two species of Pinus. We also wanted to identify
Sci. agric. (Piracicaba, Braz.). Publicado em: 30/05/2019
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3. Do edaphic aspects alter vegetation structures in the Brazilian restinga?
The vegetation of the Brazilian restinga (coastal woodland) presents a variety of species and different characteristics, encompassing fields, fruit groves and forests on quartzarenic neosols. We hypothesised that the structure of the restinga landscape along the coast of the state of Piauí is influenced by edaphic factors and presents a pattern similar to t
Acta Bot. Bras.. Publicado em: 2013-09
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4. Avaliação morfofisiológica, fitoquímica e mutagênica de Passiflora edulis Sims f. flavicarpa Deg exposta a diferentes concentrações de alumínio
The influence of aluminum (Al) in two cultivars of Passiflora edulis is presented in two chapters: first a discussion on the experiment with the cultivar (cv.) FB 100 and second with the cultivar (cv.) FB 200. The study with cv. FB100 in greenhouse aimed to verify morphophysiological changes after 15 days of treatment with Al. For cv. FB 200 plants was evalu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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5. Diallel analysis for grain yield and mineral absorption rate os soybeans grown in acid brazilian Savannah soil.
High available aluminium and low levels of calcium below the ploughed zone of the soil are limiting factors for agricultural sustainability in the Brazilian Cerrados (Savannahs). The mineral stresses compound with dry spells effect by preventing deep root growth of cultivated plants and causes yield instability. The mode of inheritance for grain yield and mi
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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6. Comparison between hill and row plots methods on selection of soybeans for aluminium tolerance in a brazilian savannah (cerrado) acid soil.
O objetivo deste trabalho foi comparar dois diferentes metodos quanto a sua eficiencia na selecao de genotipos de soja tolerantes ao aluminio. A selecao de soja com vistas a tolerancia ao aluminio e necessaria para a completa adaptacao da cultura aos solos acidos dos Cerrados. Entretanto, as tecnicas de campo sao laboriosas e demandam tempo. Os resultados in
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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7. Efeito de calcario e gesso nos teores de calcio e aluminio da camada compactada em latossolo vermelho-escuro.
Este trabalho foi desenvolvido no laboratorio da Universidade Federal de Uberlandia para avaliar o efeito de niveis de compactacao e de doses de gesso e de calcario nos teores de Al3+ e Ca2+ da camada compactada. Utilizaram-se colunas, formadas pela sobreposicao de tres aneis de PVC de 1 dm de diametro e 0,5 dm de altura, contendo nos extremos camadas de sol
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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8. Avaliacao de genotipos de trigo em diferentes regioes triticolas do Parana, em solos com aluminio, na safra de 1996.
A avaliacao de cultivares de trigo no Parana, com fins de recomendacao, e realizada pelas Instituicoes: IAPAR, Embrapa Soja, COODETEC e Fundacao Agraria de Pesquisa, atraves da instalacao de ensaios de rendimento nas principais regioes triticolas do Estado. Sao relatados os resultados obtidos em 1996 de 17 experimentos do Ensaio Intermediario Paranaense (IPR
Londrina: EMBRAPA-CNPSo. Publicado em: 2011
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9. Avaliacao de genotipos de trigo em diferentes regioes triticolas do Parana, em solos sem aluminio, na safra de 1996.
O estado do Parana apresenta uma diversidade de clima, com invernos irregulares em relacao a precipitacoes pluviometricas e ocorrencia de geadas, e tambem, com relacao aos tipos de solos, que influem na adaptacao e no desempenho dos genotipos de trigo. Em vista disto, ha necessidade de um maior numero de cultivares, com caracteristicas diferenciadas para ser
Londrina: EMBRAPA-CNPSo. Publicado em: 2011
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10. Relações entre a mineralogia, fertilidade, acidez e macrofauna em latossolos do cerrado sob pastagem
The Cerrado region occupies approximately 24% of Brazilian territory, making it the second biggest biome in South América, exceeded only by the Amazon Rainforest. The majority of the soils of the region were described as being acid, with a low capacity for cation exchange and high saturation by aluminium. Pastures cover 117 million hectares, of which 54 mil
Publicado em: 2008
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11. Diversidade de glomeromycetes e atividade microbiana em solos sob vegetaÃÃo nativa do semi-Ãrido de Pernambuco
The occurrence of arbuscular mycorrhizal fungi (AMF) was studied in three areas of caatinga, located in the municipalities of Caruaru, Serra Talhada and Araripina, in Pernambuco. Soil samples were collected in August and December/2005 and August and October/2006. The AMF species were identified and the structure of the community, the mycorrhizal condition of
Publicado em: 2008
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12. Concentration of 226Ra in soil and sugar cane after application of calcareous, gypsum or phosphogypsum / ConcentraÃÃo de 226Ra em solo e em cana-de-aÃÃcar apÃs aplicaÃÃo de CalcÃrio, Fosfogesso ou Gipsita
All kinds of soil possess 226Ra, and its absorption by the plants, depends on the specific characteristics of each region and of the cultivated species. In different parts of the world, radioecological studies are currently developed to evaluate the transferences of 226Ra in the soil-plant system and the presence of this radioelement in human nutrition. In r
Publicado em: 2007