Effect of biochar on tungsten bioavailability and uptake grown in a soil with artificially tungsten contaminated

<p>Tungsten (W) is an emerging contaminant because of its potential toxicity to humans, and biochar (BC) widely used for soil heavy metal remediation. However, W-biochar-plant interactions remain unknown. The objective the study was evaluate effect rice-husk BC on W uptake by lettuce. Different levels (0%, 1%, 2% 5% w/w) were incorporated into incubated 60 days. result shows that application immobilized in soil, transformed acid extractable fraction reducible residual with unstudied mechanism. Meanwhile, increased shoot height, root length, biomass, chlorophyll lettuce compared control treatment. As control, accumulation decreased, lowest translocation factor (root shoot) observed results suggested main profit reduce mobilizing proximal water. Besides, effective immobilization reducing lettuce.</p>