Effect of salt and sewage water on the survival and reproduction of three earthworm species used in vermicomposting

Dayananda, K. and Giraddi, R.S. and Gali, S.K. (2008) Effect of salt and sewage water on the survival and reproduction of three earthworm species used in vermicomposting. Karnataka Journal of Agricultural Sciences, 21 (1). pp. 52-54.

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Abstract

An experiment was conducted in the laboratory to study the effect of salt and sewage water on the survival and development of three species of earthworms used in vermicomposting. Higher number of cocoons, non-clitellate and clitellate worms were observed in treatment with potable water followed by sewage water-potable water mixture (1:5 proportion). Water with RSC of < 2.5 MeL-1, EC of 2 dSm-1 and swage water-potable water (1:2 proportion) were moderate in their effect on the development of the worms. Direct application of sewage water adversely affected the worms resulting in to significantly lower number of cocoons, non- clitellate and clitellate worms. Whereas, water with EC of 8 dSm-1 and RSC of 10 meL-1 caused immediate mortality of the introduced worms indicating the toxicity of salt water on the three species of worms.

Item Type: Article
Author Affiliation: Department of Agricultural Entomology, University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
Subjects: Plant Production > Production Practices
Plant Protection > Pests
Divisions: General
Depositing User: David T
Date Deposited: 18 Jul 2011 05:25
Last Modified: 18 Jul 2011 05:29
URI: http://eprints.icrisat.ac.in/id/eprint/2317

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