Granulometric fractions and physical-hydric behavior of sandy soils.

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dc.contributorNIELTON GONÇALO NUNES DOS SANTOS; NELCI OLSZEVSKI; ALESSANDRA MONTEIRO SALVIANO, CPATSA; TONY JARBAS FERREIRA CUNHA, CPATSA; VANDERLISE GIONGO, CPATSA; JANIELLE SOUZA PEREIRA.
dc.creatorSANTOS, N. G. N. dos
dc.creatorOLSZEVSKI, N.
dc.creatorSALVIANO, A. M.
dc.creatorCUNHA, T. J. F.
dc.creatorGIONGO, V.
dc.creatorPEREIRA, J. S.
dc.date2019-10-17T18:15:22Z
dc.date2019-10-17T18:15:22Z
dc.date2019-10-17
dc.date2019
dc.date2019-10-17T18:15:22Z
dc.date.accessioned2026-07-07T05:54:53Z
dc.descriptionSoils attributes such as granulometry and density determine the distribution of pore size and condition physical and differentiated hydraulic behavior. Thus, knowing the characteristics of the soils allow the use of more adequate management techniques that lead to the improvement of the performance of the use of this resource. The aim of this study was to evaluate the diameters of granulometric fractions and the physical-hydric behavior of sandy soils from semiarid region of Brazil. Trenches were excavated to collect, describe, and characterize the morphology of soil samples. The soil bulk density, particle density, granulometry, water retention curve, total porosity and pore size distribution were evaluated. The textural difference among soil studied is expressed with greater emphasis on the amount of macropores, high retention micropores and cryptopores. Fine and very fine sand are the most impacted granulometric fractions increasing macroporosity and reducing high tension microporosity and cryptoporosity. Luvisol with predominance of silt and clay fractions, presents a greater risk of densification and erosion, thus the use of lower irrigation levels is recommended. Acrisols and Luvisol, with predominance of fine and very fine sand fractions, present similar conditions of macroporosity and cryptopores with a low textural gradient. Acrisols and Luvisol do not present major problems regarding the reduction of hydraulic conductivity along the rofile. Lower irrigation levels with higher application frequency are suggested due to the low water retention capacity and higher risk nutrients leaching.
dc.identifierRevista Agrarian, v. 12, n. 45, p. 318-327, 2019.
dc.identifier1984-2538
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1113186
dc.identifier10.30612/agrarian.v12i45.7687
dc.identifier.urihttp://hdl.handle.net/123456789/502484
dc.languageeng
dc.rightsopenAccess
dc.subjectAtributos físicos
dc.subjectMicroporosidade
dc.subjectDistribuição de poros
dc.subjectDinâmica de água
dc.subjectFrações granulométricas
dc.subjectComportamento físico-hídrico
dc.subjectSemiarido
dc.subjectSolo
dc.subjectSolo Arenoso
dc.subjectSoil
dc.subjectSemiarid soils
dc.titleGranulometric fractions and physical-hydric behavior of sandy soils.
dc.typeArtigo de periódico

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