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dc.contributor.author
Tormena, Cássio Antonio
dc.contributor.author
Da Silva, Álvaro Pires
dc.contributor.author
Imhoff, Silvia del Carmen
dc.contributor.author
Dexter, Anthony Roger
dc.date.available
2019-09-29T23:16:35Z
dc.date.issued
2008-01
dc.identifier.citation
Tormena, Cássio Antonio; Da Silva, Álvaro Pires; Imhoff, Silvia del Carmen; Dexter, Anthony Roger; Quantification of the soil physical quality of a tropical oxisol using the s index; Universidade de São Paulo; Scientia Agricola; 65; 1; 1-2008; 56-60
dc.identifier.issn
0103-9016
dc.identifier.uri
http://hdl.handle.net/11336/84809
dc.description.abstract
Soil physical quality is fundamental for the sustainability of agro ecosystems. Soil physical quality assessment must be developed using parameters that describe physical behavior. S, a new soil physical parameter has recently been introduced for assessing the soil physical quality. A good soil physical quality has been associated with values of S > 0.035 in soils from temperate climates. However, S has not been evaluated in tropical soils yet. Therefore we tested the hypothesis that S is a reliable soil physical quality indicator of a Typic Hapludox cropped with maize under no-tillage (NT) and conventional tillage (CT). Undisturbed samples were collected from each tillage system in the row and interrow positions. Soil bulk density was determined in the samples and the S parameter was calculated using a pedotransfer function from the same samples. The parameter S was able to differentiate tillage and position with S NT < SCT independent of the row and interrow sampling positions. Higher S values were verified in row position than in the interrow in both tillage systems. With the use of a pedotransfer function it was also possible to establish a negative relationship between S and soil compaction. The results confirmed our hypothesis and suggest that further studies should be carried out to evaluate S in other tropical soils and management systems.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Universidade de São Paulo
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BULK DENSITY
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NO-TILLAGE
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SOIL STRUCTURE
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SOIL WATER RETENTION
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TROPICAL SOILS
dc.subject.classification
Ciencias del Suelo
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Quantification of the soil physical quality of a tropical oxisol using the s index
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-09-27T14:15:51Z
dc.identifier.eissn
1678-992X
dc.journal.volume
65
dc.journal.number
1
dc.journal.pagination
56-60
dc.journal.pais
Brasil
dc.journal.ciudad
Piracicaba
dc.description.fil
Fil: Tormena, Cássio Antonio. UNIVERSIDADE ESTADUAL DE MARINGÁ (UEM);
dc.description.fil
Fil: Da Silva, Álvaro Pires. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Imhoff, Silvia del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
dc.description.fil
Fil: Dexter, Anthony Roger. Instytut Uprawy Nawozenia I Gleboznawstwa Państwowy Instytut Badawczy;
dc.journal.title
Scientia Agricola
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1590/S0103-90162008000100008
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