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Enhancement of growth and reproduction of the tropical earthworm Polypheretima elongata (Megascolecidae) by addition of Zea mays and Mucuna pruriens var. utilis litter to the soil

Por: Huerta Lwanga, Esperanza. Doctora [autora].
Fragoso González, Carlos Enrique [autor] | Barois, Isabelle [autora] | Lavalle, P [autor/a].
Tipo de material: Artículo
 impreso(a) 
 
  y electrónico  
  Artículo impreso(a) y electrónico Tema(s): Lombrices de tierra | Mucuna pruriens | Polypheretima elongata | Maíz | CompostesTema(s) en inglés: Earthworms | Cowage | Polypheretima elongata | Corn | CompostDescriptor(es) geográficos: La Mancha (Veracruz de Ignacio de la Llave, México) Clasificación: AR/631.875 / H8 Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: European Journal of Soil Biology. volumen 41, número 1-2 (January-June 2005), páginas 45-53. --ISSN: 1164-5563Número de sistema: 46770Resumen:
Inglés

The effect of light fractions of organic matter of different origin, on the growth and reproduction of the mesohumic endogeic earthworm Polypheretima elongata, has been tested in laboratory cultures. Earthworms were fed with savannah soil from La Mancha Veracruz (Mexico), padded with different amounts of fresh or composted Mucuna pruriens var. utilis (Leguminosae), or Zea mays (Graminaceae) leaf material. Earthworm cultures were performed under controlled conditions of temperature (27 °C) and humidity: (33% on a dry weight basis) during 63 days for the growth study and 98 days for the reproduction study. The highest individual fresh weight (5.8 ± 0.7 g after 63 days) and the highest cocoon production (33 ± 8.4 cocoons ind-1 in 98 days) were obtained when litter of'M. pruriens var. utilis was added to the soil. Mucuna leaf material was more efficient when fresh, whereas maize litter gave higher growth and fecundity rates when composted for 6 weeks. The addition of organic matter from the light fraction of the soil did not improve earthworm growth.

Recurso en línea: http://www.sciencedirect.com/science/article/pii/S1164556305000257
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The effect of light fractions of organic matter of different origin, on the growth and reproduction of the mesohumic endogeic earthworm Polypheretima elongata, has been tested in laboratory cultures. Earthworms were fed with savannah soil from La Mancha Veracruz (Mexico), padded with different amounts of fresh or composted Mucuna pruriens var. utilis (Leguminosae), or Zea mays (Graminaceae) leaf material. Earthworm cultures were performed under controlled conditions of temperature (27 °C) and humidity: (33% on a dry weight basis) during 63 days for the growth study and 98 days for the reproduction study. The highest individual fresh weight (5.8 ± 0.7 g after 63 days) and the highest cocoon production (33 ± 8.4 cocoons ind-1 in 98 days) were obtained when litter of'M. pruriens var. utilis was added to the soil. Mucuna leaf material was more efficient when fresh, whereas maize litter gave higher growth and fecundity rates when composted for 6 weeks. The addition of organic matter from the light fraction of the soil did not improve earthworm growth. eng

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