Propriedades físicas e indicador de qualidade de um latossolo vermelho submetido a diferentes sistemas de uso e manejo

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorNetto, Antonio Angelotti
dc.creatorFernandes, Edemo João
dc.creatorCenturion, José Frederico
dc.date2014-05-27T11:22:21Z
dc.date2016-10-25T18:23:24Z
dc.date2014-05-27T11:22:21Z
dc.date2016-10-25T18:23:24Z
dc.date2007-01-01
dc.date.accessioned2017-04-06T01:23:08Z
dc.date.available2017-04-06T01:23:08Z
dc.identifierIrriga, v. 12, n. 1, p. 27-37, 2007.
dc.identifier1413-7895
dc.identifier1808-3765
dc.identifierhttp://hdl.handle.net/11449/69434
dc.identifierhttp://acervodigital.unesp.br/handle/11449/69434
dc.identifier2-s2.0-34249897791.pdf
dc.identifier2-s2.0-34249897791
dc.identifierhttp://200.145.140.50/ojs1/viewarticle.php?id=210&layout=abstract
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/890684
dc.descriptionThe conventional system for soil management and preparation has the intensive mechanization as its basic principle and that changes soil properties, especially physical ones, faster and significantly. This study aimed to obtain and compare physical properties such as distribution of particle sizes, density, distribution of pore sizes, curves of water retention and degradation index of a Red Latosol, under intensive cultivation and no-cultivation for six years. Soil samples were collected at depths of 0.1, 0.2, 0.3, 0.4, 0.6, 0.8 and 1.0 m. There was a clay increment as a result of cultivated soil increase. The no-till soil density decreased as depth increased; however, in the arable layer (0.3 m) of the cultivated soil, the opposite was verified. The largest volume of pores was verified in the cultivated soil, especially in the superficial layers. In the smallest applied tension (0.001 MPa), the cultivated soil retained more water; however, starting from 0.033 MPa, the highest humidity values occurred in the no-till soil. The highest degradation index was observed at a depth of 0.1 m in no-till soil. However, that value was superior (0.020) to what is physically considered very poor soil.
dc.languagepor
dc.relationIrriga
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBulk density
dc.subjectDegradation index
dc.subjectNon-cultivated
dc.subjectPorosity
dc.subjectWater retention
dc.subjectAtmospheric humidity
dc.subjectCultivation
dc.subjectParticle size
dc.subjectPore size
dc.subjectSoil moisture
dc.subjectSoils
dc.subjectbulk density
dc.subjectparticle size
dc.subjectphysical property
dc.subjectporosity
dc.subjectred soil
dc.subjectsoil degradation
dc.subjectsoil management
dc.subjectsoil quality
dc.subjectsoil water
dc.subjectwater retention
dc.titlePropriedades físicas e indicador de qualidade de um latossolo vermelho submetido a diferentes sistemas de uso e manejo
dc.typeOtro


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