Browsing by Author "Gajic Umiljendic, Jelena"
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Assessment of microbial activity and biomass in different soils exposed to nicosulfuron
Santric, Ljiljana; Radivojevic, Ljiljana; Gajic Umiljendic, Jelena; Djurovic-Pejcev, Rada; Saric-Krsmanovic, MarijaThe effects of the herbicide nicosulfuron on the abundance of cellulolytic and proteolytic microorganisms, activity of β-glucosidase and protease enzymes, and microbial phosphorus biomass were examined. A laboratory ... -
A Bioassay Technique to Study Clomazone Residues in Sandy Loam Soil
Gajic Umiljendic, Jelena; Radivojevic, Ljiljana; Djordjevic, Tijana; Jovanovic-Radovanov, Katarina; Santric, Ljiljana; Djurovic-Pejcev, Rada; Elezovic, IbrahimA bioassay test was conducted to evaluate the sensitivity of maize, sunflower and barley to clomazone residues in sandy loam soil. Clomazone was applied at different rates from 0.12 to 12 mg a.i./kg of soil. The parameters ... -
Chemical control of field dodder in alfalfa
Saric-Krsmanovic, Marija; Bozic, Dragana; Malidza, Goran; Radivojevic, Ljiljana; Gajic Umiljendic, Jelena; Vrbnicanin, SavaParasitic flowering plants have recently come into focus of research interests as a result of their notable expansion and increasing damage that they are causing in agricultural fields. Damage caused by field dodder in ... -
Comparison of Methods for Bifenthrin Residues Determination in Fermented Wheat Samples
Djordjevic, Tijana; Djurovic, Rada; Gajic Umiljendic, JelenaEfficiency of three different sample preparation methods for GC/MS determination of bifenthrin residues in wheat (Triticum spelta) samples fermented by Lactobacillus plantarum was tested. The first method was based on a ... -
Efficiencies of Different Methods for Determination of Organophosphate Pesticide Residues in Fermented Wheat Substrate
Djordjevic, Tijana; Siler-Marinkovic, Slavica; Djurovic-Pejcev, Rada; Dimitrijevic-Brankovic, Suzana; Gajic Umiljendic, JelenaIn the present work, the efficiencies of three different sample preparation methods for GC/ MS determination of pirimiphos-methyl and chlorpyrifos-methyl residues in wheat (Triticum spelta) samples fermented by Lactobacillus ... -
Maize, Sunflower and Barley Sensitivity to the Residual Activity of Clomazone in Soil
Gajic Umiljendic, Jelena; Jovanovic-Radovanov, Katarina; Radivojevic, Ljiljana; Santric, Ljiljana; Djurovic, Rada; Djordjevic, TijanaSensitivity of maize, sunflower and barley to clomazone residues in loamy soil was assessed in the study using bioassay. Clomazone was applied at a series of concentrations from 0.12 to 12 mg a.i./kg of soil. After 14 ... -
Multiresidue Analysis of Pesticides in Soil by Liquid-Solid Extraction Procedure
Djurovic, Rada; Djordjevic, Tijana; Radivojevic, Ljiljana; Santric, Ljiljana; Gajic Umiljendic, JelenaA multiresidue method for simultaneous determination of four pesticides (diazinon, acetochlor, aldrine and carbofuran) belonging to different pesticide groups, extracted from soil samples, is described. The method presented ...