The Effects of the Interaction of Pesticides with Humin Fraction as Influencing the Sustainable Development of Agroecosystems

Lilla Mielnik, Jerzy Weber (), Aleksandra Ukalska-Jaruga, Romualda Bejger, Maria Jerzykiewicz, Andrzej Kocowicz, Irmina Ćwieląg-Piasecka, Elżbieta Jamroz, Magdalena Debicka and Jakub Bekier
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Lilla Mielnik: Department of Bioengineering, West Pomeranian University of Technology in Szczecin, ul. P. Pawła VI 3, 71-459 Szczecin, Poland
Jerzy Weber: Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-357 Wrocław, Poland
Aleksandra Ukalska-Jaruga: Department of Soil Science, Erosion and Land Conservation, Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, 24-100 Puławy, Poland
Romualda Bejger: Department of Bioengineering, West Pomeranian University of Technology in Szczecin, ul. P. Pawła VI 3, 71-459 Szczecin, Poland
Maria Jerzykiewicz: Faculty of Chemistry, University of Wroclaw, ul. Joliot-Curie 14, 50-383 Wroclaw, Poland
Andrzej Kocowicz: Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-357 Wrocław, Poland
Irmina Ćwieląg-Piasecka: Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-357 Wrocław, Poland
Elżbieta Jamroz: Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-357 Wrocław, Poland
Magdalena Debicka: Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-357 Wrocław, Poland
Jakub Bekier: Institute of Soil Science, Plant Nutrition and Environmental Protection, Wrocław University of Environmental and Life Sciences, ul. Grunwaldzka 53, 50-357 Wrocław, Poland

Sustainability, 2024, vol. 16, issue 5, 1-13

Abstract: Humin (HUM) is the most stable fraction of the soil organic matter, whose properties determine the soil health and sustainable development of agroecosystems. The aim of the paper was to determine changes in the properties of the HUM after interaction with selected pesticides, which can be visualized using photoluminescence methods. The HUM was isolated from the mollic horizon of Phaeozems arable soils derived from different parent materials in Poland. The isolated and purified HUM were saturated in a batch experiment with selected herbicides and insecticides, then analyzed for chemical composition and spectroscopic properties: Electron Paramagnetic Resonance, fluorescence, and delayed luminescence. The research showed that the interaction of the HUM with selected pesticides caused significant changes in the elemental composition of the HUM; however, no changes in their aromaticity/aliphaticity were found. The impact of pesticides was also marked by a reduction in the concentration of radicals, fluorescence and delayed luminescence intensity and properties. Changes in spectroscopic characteristics and their relationship with soil organic matter (SOM) structure properties require further research so that their results can be used in the management of agroecosystems in accordance with the principles of sustainable development.

Keywords: spectroscopic methods; fluorescence; delayed luminescence; electron paramagnetic resonance; herbicides; insecticides; soil health; sustainable development (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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