TY - JOUR
T1 - Side effects of traditional pesticides on soil microbial respiration in orchards on the Russian Black Sea coast
AU - Karpun, Natalia N.
AU - Yanushevskaya, Eleonora B.
AU - Mikhailova, Yelena V.
AU - Díaz-Torrijo, Javiera
AU - Krutyakov, Yurii A.
AU - Gusev, Alexander A.
AU - Neaman, Alexander
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/7
Y1 - 2021/7
N2 - Agricultural use of pesticides has greatly increased worldwide over the last several decades, affecting soil microorganisms. Microbial basal respiration and substrate-induced respiration rates are commonly used to assess the detrimental effects of pesticides on soil quality. The goal of the present study was (1) to compare the impact of different pesticides on soil microbial respiration under field conditions, and (2) to characterize the recovery time of soil microbial respiration after pesticide application. The following pesticides were used in the present study: chlorpyrifos, phosalone, dimethoate (organophosphorus insecticides), λ-cyhalothrin (pyrethroid insecticide), and kresoxim-methyl (fungicide). The application of all the pesticides at commercial doses led to a decrease in soil microbial respiration. The inhibition of basal respiration and substrate-induced respiration rate decreased in the following order: chlorpyrifos > phosalone > dimethoate > λ-cyhalothrin ≈ kresoxim-methyl. Among all the pesticides assessed, chlorpyrifos showed the highest toxicity as well as the highest persistence. Several of the observed results differed greatly from previous studies; thus, local assessments are highly advisable. Given that environmental concerns can be a key decision factor for pesticide selection, assessment of different pesticides—such as undertaken in this study—could help farmers to choose the most appropriate pesticide.
AB - Agricultural use of pesticides has greatly increased worldwide over the last several decades, affecting soil microorganisms. Microbial basal respiration and substrate-induced respiration rates are commonly used to assess the detrimental effects of pesticides on soil quality. The goal of the present study was (1) to compare the impact of different pesticides on soil microbial respiration under field conditions, and (2) to characterize the recovery time of soil microbial respiration after pesticide application. The following pesticides were used in the present study: chlorpyrifos, phosalone, dimethoate (organophosphorus insecticides), λ-cyhalothrin (pyrethroid insecticide), and kresoxim-methyl (fungicide). The application of all the pesticides at commercial doses led to a decrease in soil microbial respiration. The inhibition of basal respiration and substrate-induced respiration rate decreased in the following order: chlorpyrifos > phosalone > dimethoate > λ-cyhalothrin ≈ kresoxim-methyl. Among all the pesticides assessed, chlorpyrifos showed the highest toxicity as well as the highest persistence. Several of the observed results differed greatly from previous studies; thus, local assessments are highly advisable. Given that environmental concerns can be a key decision factor for pesticide selection, assessment of different pesticides—such as undertaken in this study—could help farmers to choose the most appropriate pesticide.
KW - Half-time degradation rate
KW - Microorganism recovery rate
KW - Pesticide assessment
KW - Pesticide degradation
UR - http://www.scopus.com/inward/record.url?scp=85101574627&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2021.130040
DO - 10.1016/j.chemosphere.2021.130040
M3 - Article
AN - SCOPUS:85101574627
SN - 0045-6535
VL - 275
JO - Chemosphere
JF - Chemosphere
M1 - 130040
ER -
