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Effect of pesticides on most probable number of soil microbes from tea (Camellia sinensis) plantations and uncultivated land enumerated in enrichment media

Indian Agricultural Research Journals

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Title Effect of pesticides on most probable number of soil microbes from tea (Camellia sinensis) plantations and uncultivated land enumerated in enrichment media
 
Creator Bezbaruah, Balamani
Saikia, Nilima
Bora, Tarun
 
Subject —
 
Description To enumerate the most probable number (MPN) of soil microbes from tea [Camellia sinensis (L.) O. Kuntze] plantations anduncultivated land, soil samples were plated into enrichment media designed to promote cellulolytic, nitrogen-fixing orsulphur.-oxidizing groups. The experiment was conducted in 1990-91 by collecting fresh soil samples 6 times a year to coverall the seasonal variations. To study the effect of pesticides, each sample was introduced into soil dilutions 24 hr beforeplating into the respective enrichment medium. The population of sulphur-oxidizing strains increased in the presence ofmalathion and dimethoate and reduced in the presence of fenitrothion and endosulfan. All the pesticides tried reduced thepopulation of nitrogen-fixing strains. Glyphosate and 2,4-D increased the population of cellulolytic strains but dalapon andparaquat reduced it.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-06-05
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/18962
 
Source The Indian Journal of Agricultural Sciences; Vol 65, No 8 (1995)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/18962/9316
 
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