Utilization of Inorganic Nanoparticles and Biochar as Additives of Agricultural Waste Composting: Effects of End-Products on Plant Growth, C and Nutrient Stock in Soils from a Mediterranean Region

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dc.contributor.authorMedina, Jorge
dc.contributor.authorCalabi-Floody, Marcela
dc.contributor.authorAponte, Humberto
dc.contributor.authorSantander, Christian
dc.contributor.authorPaneque, Marina
dc.contributor.authorMeier, Sebastian
dc.contributor.authorPanettieri, Marco
dc.contributor.authorCornejo, Pablo
dc.contributor.authorBorie, Fernando
dc.contributor.authorKnicker, Heike
dc.date2021
dc.date.accessioned2021-10-04T18:54:33Z
dc.date.available2021-10-04T18:54:33Z
dc.description.abstractThis study was conducted to evaluate the effect of compost produced with agricultural residues and oat-based biochar, iron oxide and halloysite nanoparticles as additives of the process of composting on soil chemical properties, nutrient status and growth of ryegrass Lolium perenne L. For this, a 90-day mesocosm experiment was carried out under greenhouse conditions. Bare soil and a basal fertilization treatment were compared to soils amended with nonadditive compost (NA compost), compost supplied with oat-based biochar (Bioch compost), iron oxide nanoparticles (Fe compost), and halloysite nanoparticles (Ha compost). Compost supplied with nanoparticles and biochar combined were also considered. The incorporation of compost with or without additives increased the content of total C and N in soil, with N diminishing (total and mineral forms) and C/N modifications after 90 days. The addition of compost and co-composted treatments also increased the total contents of main nutrients such as Ca, K, P and S. Furthermore, the supply of additives into composting did not increase the concentration of trace toxic elements. At the end of the experiment, plant biomass increased by the addition of the different organic amendments, with the highest shoot biomass in soils amended with compost supplied with nanoparticles. These results suggest that the addition of compost based on agricultural residues with additives such as halloysite or biochar improves chemical properties and nutritional status of soil that favor and increase plant growth of Lollium perenne stablished in soils from the Mediterranean Region.
dc.identifier.citationAGRONOMY-BASEL,Vol.11,,2021
dc.identifier.doi10.3390/agronomy11040767
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/4356
dc.language.isoen
dc.publisherMDPI
dc.sourceAGRONOMY-BASEL
dc.subject.englishcompost
dc.subject.englishiron oxide
dc.subject.englishamendments
dc.subject.englishpyrogenic carbon
dc.subject.englishgrassland soil
dc.subject.english
dc.titleUtilization of Inorganic Nanoparticles and Biochar as Additives of Agricultural Waste Composting: Effects of End-Products on Plant Growth, C and Nutrient Stock in Soils from a Mediterranean Region
dc.typeArticle
uct.indizacionSCI
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