SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

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	Agronomy (2)
	Organic Eprints (1)

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	Ferreira, Tiago Osório (3)
	Biondi, Caroline Miranda (2)
	Nascimento, Clístenes Williams Araújo do (2)
	Silva, Ygor Jacques Agra Bezerra da (2)
	Souza Júnior, Valdomiro Severino de (2)

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	Info:eu-repo/semantics/article (2)
	Journal paper (1)

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	2018 (2)
	2013 (1)

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	Brazil (2)
	Germany (1)

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Inglês (2)

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Evaluation of soil structure using participatory methods in the semiarid region of Brazil.

Organic Eprints

Araújo, Ana Leônia de; Oliveira, Renato Teixeira de; Ferreira, Tiago Osório; Romero, Ricardo Espíndola.

Conservation practices are important in improving the environmental protection of agroecosystems in semiarid regions, as these are considered to be fragile environments. Soil-quality indicators are useful elements in evaluating the impact of some agricultural management practices, and the use of recognized indicators which are able to be measured by farmers is an innovative approach that seeks to integrate both scientific and local knowledge. This study aimed to evaluate the impact of various management practices through indicators of soil quality related to soil structure, in areas of family farming where agroecological consortiums are employed. These indicators were identified as important by the farmers themselves, and methodologies were suggested for...

Tipo: Journal paper

Palavras-chave: Soil quality; Farming Systems; Social aspects.

Ano: 2013

URL: http://orgprints.org/28501/1/Ara%C3%BAjo_evaluation.pdf

Geochemical signatures and weathering rates in soils derived from different granites in contrasting climatic locations

Agronomy

Silva, Ygor Jacques Agra Bezerra da; Nascimento, Clístenes Williams Araújo do; Biondi, Caroline Miranda; van Straaten, Peter; Souza Júnior, Valdomiro Severino de; Ferreira, Tiago Osório.

We studied the mineralogical properties and chemical composition of different granites using energy dispersive X-ray spectroscopy coupled with scanning electron microscopy to understand the relationship between granite signatures and soil characteristics, including weathering patterns and soil fertility status. The discriminant analysis (DA) was based on soil physical and chemical properties and was used to differentiate soils developed from I- and S-type granites across contrasting climatic conditions in northeast Brazil. The DA identified the highest values of organic carbon, clay and plant nutrients as key variables to recognize soil profiles derived from I-type granites. In contrast, the greater sand contents and Al saturation distinguished soils...

Tipo: Info:eu-repo/semantics/article

Palavras-chave: Soil science; Soil genesis; Soil fertility; Chemical index of alteration; Northeastern Brazil.; Ciência do Solo.

Ano: 2018

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39708