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dc.contributor.authorFoloni, José Salvador Simoneti-
dc.contributor.authorRosolem, Giro Antonio-
dc.identifier.citationRevista Brasileira de Ciencia do Solo, v. 30, n. 3, p. 425-432, 2006.-
dc.description.abstractApplying lime on the soil surface in soils managed under no-tillage has caused an excess of basic cations in the most superficial layers of the soil profile. On the other hand, subsoil acidity is considered a constraint to the development of deep plant roots. The objective of this study was to evaluate Ca 2+, Mg 2+, NO 3- and SO 4 2- leaching in the soil profile as affected by liming and top dressing nitrogen fertilization in cotton, grown with straw cover on the soil surface. Cotton plants (Gossypium hirsutum) were grown for 60 days in PVC columns filled with a Distroferric Red Latosol (sand loam Rhodic Oxisol) with liming applied over the straw on the soil surface, incorporated liming 0-20 cm deep, or without liming. Nitrogen was applied at rates of 0, 50, 100 and 150 kg ha -1 as ammonium sulfate. The PVC columns were set up in layers of 0-5, 5-10, 10-20, 20-30 and 30-30 cm, totaling 15.71 dm 3. The ammonium sulfate application caused intense leaching of SO 4 2- in the soil, irrespective of the lime application method. Liming increased the concentration of NO 3 in the 0-20 cm soil layer, whereas the correction of the soil acidity did not affect the NO 3- concentration in the 30-50 cm soil layer. The influence of ammonium sulfate on Ca 2+ leaching below 20 cm was only observed in the soil with incorporated lime. Nitrogen application resulted in extensive Mg 2+ leaching from the soil, regardless of the lime application method. In the soil layer below 30 cm, SO 4 2- presented a higher correlation than NO 3- in the formation of ionic pairs with Ca 2+ and Mg 2+.en
dc.subjectGossypium hirsutum-
dc.titleEfeito da calagem e sulfato de amônio no algodão. I - Transporte de cátions e ânions no solopt
dc.title.alternativeEffect of liming and ammonium sulfate on cotton. I - Cation and anion transport in the soilen
dc.contributor.institutionUniversidade do Oeste Paulista (UNOESTE)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationFaculdade de Agronomia Campus II Universidade do Oeste Paulista - UNOESTE, Rodovia Raposo Tavaree, km 572, 19067-175 Presidente Prudente (SP)-
dc.description.affiliationDepartamento de Produção Vegetal-FCA Univereidade do Estado de São Paulo - UNESP, Caixa Postal 237, CEP 18603-970 Botucatu (SP)-
dc.description.affiliationUnespDepartamento de Produção Vegetal-FCA, Universidade do Estado de São Paulo – UNESP. Caixa Postal 237, CEP 18603-970 Botucatu-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofRevista Brasileira de Ciência do Solo-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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