UNLABELLED BACKGROUND The metals bioavailability in soils is commonly assessed by chemical extractions; however a generally accepted method is not yet established. In this study, the effectiveness of Diffusive Gradients in Thin-films (DGT) technique and single extractions in the assessment of metals bioaccumulation in vegetables, and the influence of soil parameters on phytoavailability were...

The aim of this study was to evaluate the effect raw (RawBC) and iron (Fe)-modified biochar (FeBC) derived from Platanus orientalis Linn branches on plant growth, enzyme activity, bioavailability uptake As, Cd, Pb by rice in a paddy soil with continuously flooded (CF) or alternately wet dry (AWD) irrigation pot experiment. Application RawBC (3%, w/w) significantly increased pH, while FeBC decre...

Because of their high content in toxic metals, steel slag dumps are potential threats for the environment and public health. Among management methods that could mitigate hazard, aided-phytostabilization is a relevant, though challenging, option. Indeed, slags very unfavorable plant growth, due to metal toxicity alkaline pH (>10). In this work, we investigated how composted sewage sludge allevia...

Manganese (Mn) toxicity in crops is a serious problem in Hawaii, especially Kauai and Oahu, where most soils are highly weathered. To devise a management strategy to control Mn toxicity, a greenhouse experiment was conducted on an acid (pH 4.4) Oxisol (Wahiawa series) having 15g·kg total Mn. Factorial combinations of lime (0, 2.0, and 4.0 g·kg CaCO3) and two composts (made from chicken manure a...

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The forage grasses are explored for the phytoremediation of heavy metals from contaminated areas. The present study evaluates the tolerance of forages grasses to Pb and the availability of Pb for the Mehlich 1, DTPA, and USEPA 3051 and 3052 extraction methods. The forage grasses cultivars Panicum maximum cultivars Aruana and Tanzânia, Brachiaria decumbens cultivar Basilisk, Brachiaria brizantha...