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  • 3. Scientific Journals / Naučni i stručni časopisi
  • Scientific Journal "PESTICIDES AND PHYTOMEDICINE"
  • 2006.
  • VOL 21 *No.3
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  •   CaSA NaRA
  • 3. Scientific Journals / Naučni i stručni časopisi
  • Scientific Journal "PESTICIDES AND PHYTOMEDICINE"
  • 2006.
  • VOL 21 *No.3
  • View Item
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Effects off Atrazine on Soil Microorganisms

Delovanje atrazina na mikroorganizme u zemljištu

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Author
Radivojevic, Ljiljana
Santric, Ljiljana
Stankovic-Kalezic, Radmila
Keywords
Atrazine
Total number of microorganisms
Actinomycetes
Fungi
Cellulolytic microorganisms
Amino-heterotrophs
ukupan broj mikroorganizama
Atrazin
gljive
aktinomicete
elulolitski mikroorganizmi
aminoheterotrofi
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Abstract
Effects of the herbicide atrazine on soil microorganisms was investigated. Trials were set up in laboratory, on a clay loam soil. Atrazine was applied at 8.0, 40.0 and 80.0 mg/kg soil rates. The abundance of total microorganisms, fungi, actinomycetes, cellulolytic microorganisms and amino-heterotrophs was recorded. Soil samples were collected 1, 7, 14, 21, 30 and 60 days after atrazine treatment for microbiological analyses. The results showed that the intensity of atrazine effect on soil microorganisms depended on treatment rate, exposure time and group of microorganisms. Atrazine had an inhibiting effect on cellulolytic microorganisms and amino-heterotrophs. Initially, it inhibited fungi and actinomycetes but its effect turned into a stimulating one once a population recovered. Atrazine had a stimulating effect on total abundance of microorganisms.
 
U radu je ispitivano delovanje atrazina na mikroorganizme u zemljištu. Ogled je postavljen u laboratorijskim uslovima na zemljištu tipa glinovita ilovača. Atrazin je primenjen u količinama od 8.0, 40.0 i 80.0 mg/kg zemljišta. Praćen je ukupan broj mikroorganizama, broj gljiva, aktinomiceta, celulolitskih mikroorganizama i aminoheterotrofa. Uzorci za mikrobiološke analize uzimani su 1, 7, 14, 21, 30 i 60 dana posle primene atrazina. Dobijeni rezultati su pokazali da delovanje atrazina na zemljišne mikroorganizme zavisi od primenjene količine, dužine delovanja i vrste mikroorganizama. Atrazin je inhibitorno delovao na celulolitske mikroorganizme i aminoheterotrofe. Na aktinimicete i gljive delovao je prvo inhibitorno, a kasnije, zbog obnavljanja populacija stimulativno. Na ukupan broj mikroorganizama atrazin je delovao stimulativno.
 
URI
http://arhiva.nara.ac.rs/handle/123456789/1250
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