ISSN:
1432-0789
Keywords:
Herbicides
;
Fungicides
;
Jute rhizosphere
;
Microbial population
;
Nitrogen mineralisation
;
Thiosulphate oxidation
;
Corchorus capsularis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary A field experiment was carried out to investigate the effects of three pesticides (a herbicide, Basalin, and two fungicides, Dithane M-45 and Bengard), separately or in combination, on jute rhizosphere microflora (total bacteria, ammonifying bacteria, aerobic non-symbiotic N2-fixing bacteria, thiosulphate-oxidising bacteria, actinomycetes, and fungi), N mineralisation, and thiosulphate oxidation in soil. The pesticide treatments had significantly different effects on the rhizosphere microflora and their activities, depending on the kind of pesticide, the mode of application (individually or in combination), and the stage of growth of the jute plants. Although the pesticides hindered growth in the early stages, later stages were not affected because the effects on the rhizosphere microflora subsided. In addition, the combination of the herbicide Basalin (a dinitroaniline compound) and the fungicide Bengard (a benzimidazole derivative) virtually cancelled out each other's effects.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00346063
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