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Journal of Environmental Monitoring Vol - 3 Issue - 3

Journal of Environmental Monitoring Vol - 3 Issue - 2

Journal of Environmental Monitoring Vol - 3 Issue - 1

Journal of Environmental Monitoring Vol -2

Toxic effect caused on microflora of soil by pesticide picloram application

Content Provider	Royal Society of Chemistry (RSC)
Author	Airoldi, Claudio Prado, Alexandre G. S.
Copyright Year	2001
Abstract	The toxic effect of the herbicide picloram on the microbial population of a typical Brazilian red Latosol soil was studied in a series of microcalorimetric experiments. The activity of the soil was stimulated by the addition of 6.0 mg of glucose and 6.0 mg of ammonium sulfate, under 34.8% controlled moisture, to a 1.50 mg soil sample, at 298.15 ± 0.02 K. The net thermal effect due to the addition of the picloram to the soil was determined by interpreting the power–time curves, which were recorded on the microcalorimeter. The total thermal effect evolved by the microorganisms was affected by the increasing doses of herbicide, and varied from 0 to 10.00 µg g−1. An increase in picloram exposure caused a decrease of the original thermal effect, reaching a null value above 20.89 µg of herbicide per gram of soil. The decreases of the thermal effect evolved by microorganisms and the increase of the lag phase period are associated with the death of the microbial population. The effects caused by picloram application in this typical Brazilian soil resulted in a strong effect on the soil microbial communities.
Starting Page	394
Ending Page	397
Page Count	4
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	3
Issue Number	4
Journal	Journal of Environmental Monitoring
DOI	10.1039/b103872a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Herbicide Picloram Latosol Glucose Ammonium sulfate The Net (1995 film) Gram
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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