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Ciência Rural

Print version ISSN 0103-8478On-line version ISSN 1678-4596


SCHMITZ, José Antônio Kroeff; SOUZA, Paulo Vítor Dutra de  and  KAMPF, Atelene Normann. Physical and chemical properties of substrats with mineral and organic origin for growth of potted plants. Cienc. Rural [online]. 2002, vol.32, n.6, pp.937-944. ISSN 0103-8478.

Physical and chemical characterizations were done for five materials [soil, sand, peat SCv, carbonized rice husk (CRH) and decomposed acacia (Acacia mearnsii) bark after tannin extraction (DAB)] and some of their mixtures [soil + sand (1:1), soil + sand + CRH (1:1:1), soil + sand + DAB (1:1:1), peat + CRH (2:1), peat + DAB (2:1)], trying to identify which of them could be used as growing substrates for potted fruit and flower plant crops. The following properties were analyzed: water pH, salinity, cation extange capacity (CEC), organic carbon levels, dry density, total porosity, air space, available water, remaining water and particles distribution. The growing media "peat SCv + DAB" showed upper chemical and physical properties for the horticultural purposes defined.

Keywords : physical properties; chemical properties; substrates; peat; carbonized rice husk; acacia bark.

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