Physical and chemical properties of substrats with mineral and organic origin for growth of potted plants

Ciência Rural

Schmitz, José Antônio Kroeff¹  Kämpf, Atelene Normann¹  Souza, Paulo Vítor Dutra de² 

[1] UFRGS, Porto Alegre

关键词: physical properties;    chemical properties;    substrates;    peat;    carbonized rice husk;    acacia bark;   

DOI  :  10.1590/S0103-84782002000600005

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

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.

【 授权许可】

CC BY-NC