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	Provedor de dados CIGR Journal (3) Agronomy (1) Rev. Ciênc. Agron. (1) Autor Abegunrin, Toyin Peter (1) Adesina, Adetunji Emmanuel (1) Awe, Gabriel Oladele (1) Barbosa, Julierme Zimmer (1) Campos,Milton César Costa (1) Fahimeh Tarighat; MSc student at Yazd uiversity (1) Hakimzadeh, Mohammad Ali (1) Hamid Reza Sodae; Assistant professor, Desert management Department, Yazd University, Yazd, Iran (1) Marques Júnior,José (1) Melo, Vander Freitas (1) Mohammad Ali Hakimzadeh; Assistant professor, Desert management Department, Yazd University, Yazd, Iran (1) Mohammad Hossein Mokhtari; 1Assistant professor, Desert management Department, Yazd University, Yazd, Iran (1) Mokhtari, Mohammad Hossein (1) Motta, Antonio Carlos Vargas (1) Ojo, Olumiyiwa Idowu (1) Pereira,Gener Tadeu (1) Prior, Stephen Arthur (1) Rabel, Diego Oliveira (1) Siqueira,Diego Silva (1) Sodae, Hamid Reza (1) Mais... Palavra-chave Soil Science (5) Agriculture (2) Crop Science Salinity Wheat Spectroscopy Visible and Near-infrared (2) Agricultural Engineering (1) Agronomy Ki index (1) Al oxides (1) Classical regression (1) Geomorphology (1) Irrigation Engineering (1) Irrigation frequency irrigation depth (1) Kaolinite (1) Lime requirement. Soil chemistry (1) Multivariate analysis (1) Organic matter (1) Smectite (1) Soil Physics Agriculture Soil water status (1) Soil fertility (1) Soil genesis morphology and classification (1) State-time analysis (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2019 (1) 2018 (1) 2014 (2) 2012 (1) País China (3) Brazil (2) Idioma Inglês (5)		Registro completo Provedor de dados:  Agronomy País:  Brazil Título:  Depth distribution of exchangeable aluminum in acid soils: A study from subtropical Brazil Autores:  Rabel, Diego Oliveira Motta, Antonio Carlos Vargas Barbosa, Julierme Zimmer Melo, Vander Freitas Prior, Stephen Arthur Data:  2018-05-15 Ano:  2018 Palavras-chave:  Soil Science Agronomy Ki index Organic matter Smectite Kaolinite Al oxides Lime requirement. Soil chemistry Soil genesis morphology and classification Soil fertility Resumo:  Due to potential crop toxicity, high aluminum (Al) availability requires increased attention when preparing agricultural soils. However, research examining the relationship between depth distribution of Al and soil weathering has received little priority in Brazil, particularly regarding the number of soil profiles investigated. This study analyzed 38 acid soils selected from Soil Surveys in southern Brazil to identify and isolate the effects of organic and mineral components on depth distribution of exchangeable Al extracted with KCl (AlKCl). These soil profiles were divided into the following three groups based on AlKCl depth distribution: Group I – decrease with depth; Group II – little variation with depth; and Group III – increase with depth. High AlKCl found near the surface of well-developed soils (Group I) was influenced by organic matter content, while mineral fraction quality defined the occurrence of high AlKCl in subsurface horizons of Group III. The depth distribution of AlKCl was defined by the degree of weathering in these subtropical soils. Possessing a knowledge of these soil groupings may aid in soil acidity management to optimize crop productivity in southern Brazil.  Tipo:  Info:eu-repo/semantics/article Idioma:  Inglês Identificador:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39320 10.4025/actasciagron.v40i1.39320 Editor:  Universidade Estadual de Maringá Relação:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39320/pdf http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/39320/15899 http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/39320/15900 http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/downloadSuppFile/39320/15901 Formato:  application/pdf Fonte:  Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e39320 Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e39320 1807-8621 1679-9275 Direitos:  Direitos autorais 2018 Acta Scientiarum. Agronomy Fechar

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