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| Diez,M. Cristina; Tortella,Gonzalo R; Briceño,Gabriela; Castillo,Maria del Pilar; Díaz,Jorge; Palma,Graciela; Altamirano,Carolina; Calderón,Carolina; Rubilar,Olga. |
| Background: The biobed is a simple biopurification system used to prevent the point-source pesticide contamination that occurs at farm level. The typical composition of the biomixture used in this system is soil, peat and straw in volumetric proportions of 1:1:2. The principal component is straw due to its positive effects on biological activity and thus pesticide degradation. However, access to straw can be limited in some regions, so it must be replaced by other more readily available lignocellulosic residues. Results: Therefore, two alternate lignocellulosic materials (barley husks and pine sawdust) were evaluated as partial substitutes for straw. The degradation of a repeatedly applied mixture of six pesticides by these alternates was assessed. The... |
| Tipo: Journal article |
Palavras-chave: Biopurification system; Biomixture; Lignocellulosic materials; Pesticide degradation. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000600011 |
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| Aguilera,Paula; Briceño,Gabriela; Mora,María de la Luz; Demanet,Rolando; Palma,Graciela. |
| The aim of this work was to establish the effect of the dose of liquid cow manure (LCM) on some chemical properties and biological activity in an Andisol. This study was carried out under laboratory conditions using an Andisol and LCM from a dairy farm located in the South of Chile. The dose of LCM were the equivalent to 0 (SO), 100 (S100), 200, (S200) and 300 (S300) thousand L ha-1. This amount is equivalent to regular agronomic LCM applications. The chemical characterization indicated that the LCM addition modified all the tested Andisol chemical properties. These begin to return to the initial conditions from 10 days on, with the exception of EC, K and DOC. The C-C0(2) evolution indicated that LCM incorporation at increasing dose enhanced the... |
| Tipo: Journal article |
Palavras-chave: Liquid amendment; Biological activities; Chemical analysis. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912010000200007 |
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