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Regressão quadrática para teores de água em função da compactação do solo

dc.contributor.authorFernandes, Barbara Barreto
dc.contributor.authorMarasca, Indiamara
dc.contributor.authorMartins, Murilo Battistuzzi
dc.contributor.authorSandi, Jefferson
dc.contributor.authorLanças, Kleber Pereira [UNESP]
dc.identifier.citationIRRIGA, v. 26, n. 1, p. 186-194, 2021.
dc.description.abstractThe objective of this work was to evaluate the influence of water content in the evaluation of mechanical resistance to soil penetration measured through the cone index. The experiment was carried out at UNESP / FCA, Botucatu / SP, being selected two classes of soil: a Nitossolo Vermelho distroférrico and a Latosolo Vermelho. A completely randomized design was used, with the following compaction treatments: T0 = 0; T1 = 1; T2 = 2; T3 = 3; T4 = 5 and T5 = 10 consecutive passes of an agricultural tractor. A hydraulic-electronic penetrometer was used to sample the mechanical resistance of the soil to penetrate the layers; 0.00 – 0.10; 0.10-0.20; 0.20-0.30; 0.30-0.40 m in 4 water content conditions. With the increase in traffic, greater was the compression. However, for the clayey soil, from a tractor pass, the penetration resistance values had a small increase, not differing statistically for the most superficial layer (0-0.20m) and for the 0.20-0.40m layer from two passes. For medium textured soil, this happened from one pass to the most superficial layer (0-0.20m) and five passes to the 0.20-0.40m layer.en
dc.subjectSoil resistance
dc.titleQuadractic regression for water contents in the function of soil compactionen
dc.titleRegressão quadrática para teores de água em função da compactação do solopt
dc.contributor.institutionEngenheira agrônoma
dc.contributor.institutionUniversidade Estadual de Mato Grosso do Sul (UEMS)
dc.contributor.institutionUniversidade La Salle de Lucas do Rio Verde
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationEngenheira agrônoma, Rua Luis Carlos Da Silveira, 345, Tenis Clube
dc.description.affiliationEngenheira agrônoma, Fazenda Cachoeira do Montividiu
dc.description.affiliationUniversidade Estadual de Mato Grosso do Sul Unidade de Cassilândia, Rodovia MS 306-km 6,4
dc.description.affiliationUniversidade La Salle de Lucas do Rio Verde, Av. Universitária, 1000, Parque das Emas
dc.description.affiliationDepartamento de Engenharia Rural na FCA/UNESP, Av. Universitária, 3780-Altos do Paraíso
dc.description.affiliationUnespDepartamento de Engenharia Rural na FCA/UNESP, Av. Universitária, 3780-Altos do Paraíso
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