The influence of chlorothalonil on the activity of soil microorganisms and enzymes

Ecotoxicology
Małgorzata BaćmagaJan Kucharski

Abstract

As one of the most widely used pesticides in agriculture, chlorothalonil can pose threat to soil ecosystems. Therefore, the impact of this substance on the development of microbiological and biochemical properties of the soil as well as on the growth of spring wheat was evaluated. The study was conducted with two soils (loamy sand with pHKCl 5.6 and sandy loam with pHKCl 7.00), to which fungicide was used in the following doses: 0.00, 0.166 (recommended dose), 1.660, and 16.60 mg kg-1 dry matter of soil (DM of soil). In addition, we determined the effectiveness of fertilizing substances (Lignohumat Super and Bioilsa N 12.5) in the restoration of soil homeostasis and chlorothalonil degradation in the soil. Chlorothalonil caused modifications in the count and biological diversity of soil microorganisms. It stimulated the growth of heterotrophic bacteria and actinobacteria, and inhibited the growth of fungi. This pesticide was a potent inhibitor of dehydrogenase, catalase and acid phosphatase activities. It showed variable effects on urease and alkaline phosphatase. The fungicide also a reduction the yield of dry matter of the aboveground parts of spring wheat. It should, however, be noted that these changes in the soil environmen...Continue Reading

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Citations

Feb 8, 2020·Environmental Science and Pollution Research International·Lingxi HanXiuguo Wang
Jul 3, 2021·Microorganisms·Austin W LloydSvetlana N Yurgel

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Methods Mentioned

BETA
PCA

Software Mentioned

Biolilsa
Bioilsa
Statistica
Chemstation

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