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| Oberpaur,Christel; Puebla,Víctor; Vaccarezza,Flavia; Arévalo,María E. |
| Nursery producers grow plants in containers, mainly using substrates based on peat. In order to replace the use of peat, diverse mixtures of substrates combining different proportions of the moss Sphagnum magellanicum Brid. (40, 50 and 60%) and alternative organic materials, such as compost, humus and composted pine bark, were tested. In the frst trial under laboratory conditions, conducted in October 2006, the physicochemical characteristics of nine initial mixtures, including a control, were determined. Five mixtures, with similar physicochemical conditions as the control, and a commercial peat mixture, were selected by the application of Euclidean minimum distances. The fnally selected mixtures were three combinations of moss with composted pine bark... |
| Tipo: Journal article |
Palavras-chave: Compost; Composted pine bark; Humus; Lactuca sativa; Lettuce; Moss; Sphagnum. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100012 |
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| Zapata,Jaime; Yáñez,Miguel; Rudolph,Erich. |
| Las tecamebas son protozoos que habitan una amplia variedad de ambientes terrestres y de aguas dulces, incluyendo suelos húmedos, lagos, marismas, turberas, etc. Sus tecas o conchillas fósiles pueden ser recuperadas de los sedimentos en cantidades suficientes como para permitir la estimación de su abundancia relativa. El objetivo de este estudio fue entregar el primer antecedente descriptivo de la distribución de la tecamebofauna en la turbera localizada en el Parque Nacional Puyehue, Chile. Este estudio reveló 42 taxa pertenecientes a 9 familias y 15 géneros de tecamebas. Seis taxa (Arcella artocrea, Difflugia elegans, Euglypha sp. "A", Heleopera sp. "A", Hyalosphenia subflava y Nebela speciosa) no habían sido registradas previamente en Chile. Además, se... |
| Tipo: Journal article |
Palavras-chave: Turbera; Sphagnum; Rhizopoda; Tecamebas. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000100002 |
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