Journal
PLANTS-BASEL
Volume 12, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/plants12112077
Keywords
soil amendments; application rates; mining technosol; Arabidopsis thaliana; plant growth
Categories
Ask authors/readers for more resources
This study investigated the effects of different rates of compost and biochar combinations on soil properties, metal(loid) mobility, and plant growth. The mixture of 20% compost and 6% biochar showed the best results in improving plant growth and arsenic uptake. 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.
In this study, we investigated the effect of different rates of compost (20%, 40%, 60% w/w) in combination with biochar (0%, 2%, 6% w/w) on soil physiochemical properties and the mobility of arsenic (As) and lead (Pb), in addition to the ability of Arabidopsis thaliana (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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available