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Importance of Application Rates of Compost and Biochar on Soil Metal(Loid) Immobilization and Plant Growth. | LitMetric

AI Article Synopsis

Article Abstract

In this study, we investigated the effect of different rates of compost (20%, 40%, 60% /) in combination with biochar (0%, 2%, 6% /) on soil physiochemical properties and the mobility of arsenic (As) and lead (Pb), in addition to the ability of (ecotype Columbia-0) to grow and accumulate metal(loid)s. All modalities improved pH and electrical conductivity, stabilized Pb and mobilized As, but only the mixture of 20% compost and 6% biochar improved plant growth. Plants in all modalities showed a significant reduction in root and shoot Pb concentrations compared to the non-amended technosol. In contrast, As shoot concentration was significantly lower for plants in all modalities (except with 20% compost only) compared to non-amended technosol. For root As, plants in all modalities showed a significant reduction except for the mixture of 20% compost and 6% biochar. Overall, our results indicate that the mixture of 20% compost with 6% biochar emerged as the optimum combination for improving plant growth and As uptake, making it the possible optimum combination for enhancing the efficiency of land reclamation strategies. These findings provide a foundation for further research on the long-term effects and potential applications of the compost-biochar combination in improving soil quality.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10255519PMC
http://dx.doi.org/10.3390/plants12112077DOI Listing

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