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      Retenção de água em dois tipos de latossolos sob diferentes usos Translated title: Water retention in two oxisols under different uses

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          Abstract

          A curva de retenção de água é específica a cada solo e depende de vários atributos do solo. Assim, objetivou-se avaliar a influência de atributos do solo na retenção de água em Latossolo Vermelho distrófico (LVd) e Latossolo Vermelho eutroférrico (LVef) sob diferentes sistemas de uso e manejo. Os sistemas de uso e manejo foram: algodão, cana-de-açúcar e mata. As amostras de solo foram coletadas nas profundidades de 0-10, 10-20, 20-30 e 30-40 cm, para determinar a composição granulométrica, densidade do solo, matéria orgânica, Fe2O3, Al2O3 e a curva de retenção de água. A matéria orgânica não demonstrou participação efetiva na retenção de água, e a densidade do solo revelou maior correlação positiva com a retenção de água. O LVef apresentou maior retenção de água em todas as tensões e a mesma capacidade de água disponível (CAD) em relação ao LVd.

          Translated abstract

          For every type of soil, the water retention curve is specific and depends on several soil features. This study was carried out to evaluate the influence of soil attributes on water retention in Red Latosol (Haplustox) and Red Latosol (Eutrustox) under different management and use systems. The use systems were: cotton, sugar-cane and woods. The granulometric composition, bulk density, organic matter, Fe2O3 and Al2O3 contents, as well as the water retention curve were determined for soil samples from different depths (0-10, 10-20, 20-30 and 30-40 cm). Organic matter did not demonstrate effective participation in water retention, while the attribute bulk density had the greatest positive correlation with water retention. Eutrustox soil presented greater water retention in all tensions and, in relation to Haplustox, the same capacity of available water (CAW).

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          Most cited references23

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          Manual de métodos de análise de solo

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            A Closed-form Equation for Predicting the Hydraulic Conductivity of Unsaturated Soils1

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              Capacidade de campo

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbcs
                Revista Brasileira de Ciência do Solo
                Rev. Bras. Ciênc. Solo
                Sociedade Brasileira de Ciência do Solo (Viçosa )
                1806-9657
                September 2002
                : 26
                : 3
                : 829-834
                Affiliations
                [1 ] Universidade Estadual Paulista Brazil
                [2 ] Universidade Estadual Paulista Brazil
                Article
                S0100-06832002000300029
                10.1590/S0100-06832002000300029
                1fff97e1-ae34-439b-99f6-01ed9cfeb5e9

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=en
                Categories
                SOIL SCIENCE

                Soil
                soil water,organic matter,bulk density,água no solo,matéria orgânica,aluminum and iron oxides,densidade do solo,óxidos de ferro e alumínio

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