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. 2020 Oct 20;17(20):7654. doi: 10.3390/ijerph17207654

Figure 5.

Figure 5

Principal component analysis results of the physical and chemical properties and available Cd content in soil. (a) Ten days of incubation, (b) 20 days of incubation, (c) 30 days of incubation, (d) physical and chemical properties of the soils, incubation time, biochar dosage, and available Cd content in the soils.