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Influence of different classes of agrochemicals on the growth and viability of microorganisms in biofertilizers

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dc.contributor.authorTsaturyan, A.H.
dc.contributor.authorKhachatryan, G.M.
dc.contributor.authorGoginyan, A.V.
dc.contributor.authorZakharyan, Y.H.
dc.contributor.authorChesnokov, Y.V.
dc.contributor.authorGoginyan, V.B.
dc.date.accessioned2026-04-27T06:45:09Z
dc.date.available2026-04-27T06:45:09Z
dc.date.issued2026
dc.descriptionReceived: February 2nd, 2026 ; Accepted: April 8th, 2026 ; Published: April 10th, 2026 ; Correspondence: goginyan@gmail.comeng
dc.description.abstractThe compatibility of biofertilizers with conventional agrochemicals is a critical but underexplored factor influencing integrated crop management. While biofertilizers offer sustainable alternatives to chemical inputs, their simultaneous application with pesticides and micronutrient formulations may compromise microbial viability and functionality. This study systematically evaluated the in vitro compatibility of commonly used agrochemicals with microbial strains constituting the biofertilizers N-Fixera (Azotobacter chroococcum MDC 6111) and PhosRhiza (Paenibacillus polymyxa MDC 280 and Priestia megaterium MDC 2124). Microbial responses were assessed using a disc diffusion assay on Petri dishes, with growth stimulation or inhibition scored on a five-point scale. Agrochemicals were classified as insecticides, herbicides, fungicides, or micronutrient formulations. Data were integrated via heatmaps and class-level averaging to reveal general compatibility patterns. Results demonstrated pronounced strain-specific and chemical class–dependent effects. Insecticides and fungicides exerted the strongest selective pressure, markedly inhibiting spore-forming Gram-positive bacteria, whereas A. chroococcum exhibited higher tolerance and occasional stimulation. Herbicides were largely neutral or weakly stimulatory across all strains, indicating minimal direct microbial toxicity. Micronutrient formulations showed a narrow safety margin, with complex mixtures strongly inhibiting nitrogen-fixing bacteria. These findings indicate that compatibility cannot be generalized at the product level and must be evaluated at the strain level. The proposed visualization-based framework offers a practical tool for optimizing the combined use of biological fertilizers and agrochemicals, enhancing the reliability, sustainability, and efficiency of integrated crop management strategies.eng
dc.identifier.citationTsaturyan, A. H., Khachatryan, G. M., Goginyan, A. V., Zakharyan, Y. H., Chesnokov, Y. V., & Goginyan, V. B. (2026). Influence of different classes of agrochemicals on the growth and viability of microorganisms in biofertilizers. Estonian University of Life Sciences. https://doi.org/10.15159/AR.26.019en
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2026, vol. 24, no. 1, pp. 330–349eng
dc.identifier.urihttp://hdl.handle.net/10492/10367
dc.identifier.urihttps://doi.org/10.15159/ar.26.019
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectbiofertilizerseng
dc.subjectagrochemical compatibilityeng
dc.subjectnitrogen-fixing bacteriaeng
dc.subjectphosphate solubilizing bacteriaeng
dc.subjectintegrated crop managementeng
dc.subjectmicrobial toleranceeng
dc.subjectarticleseng
dc.titleInfluence of different classes of agrochemicals on the growth and viability of microorganisms in biofertilizerseng
dc.typeArticleeng

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