Compost and microbial biostimulant applications improve plant growth and soil biological fertility of a grass-based phytostabilization system
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Published:2022-03-22
Issue:3
Volume:45
Page:787-807
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ISSN:0269-4042
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Container-title:Environmental Geochemistry and Health
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language:en
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Short-container-title:Environ Geochem Health
Author:
Visconti DonatoORCID, Ventorino Valeria, Fagnano Massimo, Woo Sheridan Lois, Pepe Olimpia, Adamo Paola, Caporale Antonio Giandonato, Carrino Linda, Fiorentino Nunzio
Abstract
AbstractIn this work, a grass-based phytoremediation system integrated with an organic amendment and biostimulants was evaluated for remediating contaminated sites. Plant growth and biological fertility were monitored to assess the efficacy of a vegetative cap used as a safety measure to reduce sanitary and environmental risks of industrially contaminated soils and soil-washing sludges. Both matrices were potentially contaminated with Pb and Zn with an ecological risk index from low to moderate. According to potentially toxic elements (PTEs) bioaccessibility tests, the exposure to the released fine particulate matter may cause serious risks to human beings, in particular to children. The grass mixture was well adapted to both the substrates and a low PTEs mobility was detected, thus, reducing the leaching risk to ground water sources. Compost addition augmented significantly nitrogenase reductase (nifH) and ammonia monooxygenase (amoA) gene expression abundance in both substrates. Furthermore, a positive interaction between compost fertilization and a Trichoderma-based biostimulant inoculation was recorded in sludges resulting in a significant stimulation of nitrogen-fixing and ammonia-oxidizing bacteria. The application of compost and biostimulant increased soil fertility and plant growth. Furthermore, there was a slight reduction in PTE bioaccessibility, thus, improving the efficiency of the phytostabilization, limiting the resuspension and dispersion of the health-risk soil particulate.
Funder
Ministero dell’Istruzione, dell’Università e della Ricerca
Publisher
Springer Science and Business Media LLC
Subject
Geochemistry and Petrology,General Environmental Science,Water Science and Technology,Environmental Chemistry,General Medicine,Environmental Engineering
Reference114 articles.
1. Adamo, P., Arienzo, M., Bianco, M. R., Terribile, F., & Violante, P. (2002). Heavy metal contamination of the soils used for stocking raw materials in the former ILVA iron-steel industrial plant of Bagnoli (southern Italy). Science of the Total Environment, 295, 17–34. https://doi.org/10.1016/s0048-9697(02)00020-7 2. Adamo, P., Mingo, A., Coppola, I., Motti, R., Stinca, A., & Agrelli, D. (2015). Plant colonization of brownfield soil and post-washing sludge: Effect of organic amendment and environmental conditions. International Journal of Environmental Science and Technology, 12(6), 1811–1824. https://doi.org/10.1007/s13762-014-0597-9 3. Ali, H., Khan, E., & Sajad, M. A. (2013). Phytoremediation of heavy metals concepts and applications. Chemosphere, 91, 869–881. https://doi.org/10.1016/j.chemosphere.2013.01.075 4. Alluvione, F., Fiorentino, N., Bertora, C., Zavattaro, L., Fagnano, M., Quaglietta Chiarandà, F., & Grignani, C. (2013). Short-term crop and soil response to C-friendly strategies in two contrasting environments. European Journal of Agronomy, 45, 114–123. https://doi.org/10.1016/j.eja.2012.09.003 5. Babu, A. G., Shim, J., Bang, K. S., Shea, P. J., & Oh, B. T. (2014). Trichoderma virens PDR-28: A heavy metal-tolerant and plant growth-promoting fungus for remediation and bioenergy crop production on mine tailing soil. Journal of Environmental Management, 132, 129–134. https://doi.org/10.1016/j.jenvman.2013.10.009
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