Herbicides and soil microorganisms | Herbicidi i mikroorganizmi u zemljistu
2004
Radivojevic, Lj., Institut za istrazivanja u poljoprivredi Srbija, Beograd - Zemun (Serbia). Centar za pesticide i zastitu zivotne sredine | Santric, Lj., Institut za istrazivanja u poljoprivredi Srbija, Beograd - Zemun (Serbia). Centar za pesticide i zastitu zivotne sredine | Stankovic-Kalezic, R., Institut za istrazivanja u poljoprivredi Srbija, Beograd - Zemun (Serbia). Centar za pesticide i zastitu zivotne sredine | Janjic, V., Institut za istrazivanja u poljoprivredi Srbija, Beograd - Zemun (Serbia). Centar za pesticide i zastitu zivotne sredine
Herbicides get into soil and into contact with microorganisms after treatment, which results in their interaction. On the one hand, microorganisms are able to degrade herbicides and utilize them as a source of biogenic elements for their own physiological processes, while on the other hand herbicides have toxic effect on microorganisms, reducing their abundance, activity and consequently diversity of their communities. Various researches have shown that there is no universal pattern for herbicide effect on soil microorganisms. Toxic effects of herbicides are normally most severe immediately after application, when their concentration is soil is the highest. Later on, microorganisms take part in a degradation process, herbicide concentration decreases and so does its toxic effect. Herbicides of the triazine and chloracetanilide chemical groups have exceptionally strong inhibitory effects on soil microflora, decreasing considerably their abundance and activity shortly after the application, as well as over the ensuing period.
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