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Integrated Application of Trichoderma and Carbendazim Affects the Carbendazim Extractability and Microbial Functions in the Maize Rhizosphere

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Abstract

The purpose of this work was to study the persistence of pesticides in different soil conditions (fallow, cultivated, and microbial inoculation) and their impact on the soil microbial diversity. The experiment was set up in pots under net house conditions. Using Biolog, substrate utilization patterns for community-level physiological profiling (CLPP) were carried out. The persistence of carbendazim in different treatments of fallow soil, maize rhizosphere, and plant parts with and without Trichoderma was studied using HPLC. The HPLC analysis of soil and maize tissue reveals increased persistence of carbendazim and its degraded products in fallow treatment compared to maize with or without Trichoderma. The application of Trichoderma enhanced the carbendazim removal and alleviated its effect on the microbial populations. The present study concludes that fallow conditions prolong the presence of residual pesticides in soil and affect the soil microbial community, whereas bio-fungicides such as Trichoderma facilitate its degradation.

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Acknowledgements

We are grateful to the director of the CSIR-National Botanical Research Institute in Lucknow, India for providing all of the necessary facilities. We thank the ethical committee, CSIR-NBRI for evaluating the manuscript and providing MS No. CSIR-NBRI_MS/2023/02/05. Furthermore, we also thank Integral University for providing MCN no. IU/R&D/2022-MCN0001687.

Funding

This study was supported by CSIR- National Botanical Research Institute's OLP-109 project and CSIR funded MLP049 project.

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Contributions

All authors contributed to the study. Conceptualization: Dr. Poonam C. Singh, Soni Chauhan, and Touseef Fatima; methodology: SC and TF; writing and original draft preparation: SC, TF, and PCS; Biolog-related analysis by Dr. Puneet S. Chauhan; HPLC by TF, SC, and Om Prakash; review and editing: PCS, OP, and Amita Dubey; funding acquisition, resources, and supervision: PCS and PSC. All authors read and approved the final version of the manuscript.

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Correspondence to Poonam C. Singh.

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The authors declare no competing interests.

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Touseef Fatima shares first authorship with Soni Chauhan.

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Supplementary Data Online resource 1, 2 & 4

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Standard curve prepared with the peak areas of 1, 5, and 10 μgml-1 carbendazim. (PNG 64 kb)

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Chauhan, S., Fatima, T., Dubey, A. et al. Integrated Application of Trichoderma and Carbendazim Affects the Carbendazim Extractability and Microbial Functions in the Maize Rhizosphere. J Soil Sci Plant Nutr 23, 3373–3380 (2023). https://doi.org/10.1007/s42729-023-01254-y

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  • DOI: https://doi.org/10.1007/s42729-023-01254-y

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