USE OF THE BOM JESUS SOIL WITH ORGANIC CONDITIONERS AS HORTICULTURAL SUBSTRATES FOR PLANTS

• Autor(a) principal: FERMINO, MARIA HELENA
• Data de Publicação: 2003
• Outros Autores: KÄMPF, ATELENE NORMANN
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Gaúcha (Online)
• Texto Completo: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/434
• topic: physical characteristics, chemical characteristics, water hyacinth, rest of sugar cane, sawdust, carbonized rice hulls.; caracterização física, caracterização química, aguapé, casca de arroz, serragem de pínus, bagaço de cana.

Considering the increasing application of horticultural substrates and the fact that soil is still usedby producers in their mixes, it was conduced an experiment aiming to verify the viability of a Haplumbrept soil as acomponent of horticultural substrate mixes, along with organic conditioners. The soil was chosen due to their hightotal porosity, high level of organic matter and low capacity to agricultural use. In the experiment, the soil wasmixed, in volumetric proportion 1:1, with water hyacinth [Eichhornia crassipes (Mart.) Solms], rest of sugar cane,sawdust of Pinus sp and carbonized rice hulls. The mixes were submitted to physical (bulk density, total porosity,water availability and aeration) and chemical characterization (pH and total soluble salt concentration). Except tothe mix with sawdust, all mixes improved physical characteristics, providing lower bulk density, higher porosity andmore water availability. All conditioners, but water hyacinth, increased the mixes pH, and all of then increasedsoluble salts contents.