Effects of combined application of Se and ammonium fertilizers on the growth and nutritional quality of maize in Hg-polluted soil under two irrigation conditions and its health risk assessment.

The interactive effects of Se (NaSeO) and ammonium fertilizers ((NH)SO and NHCl) on the growth and quality of maize (Zea mays L.) in mercury (Hg)-contaminated soil were studied under different water conditions. This study determined how two nutrient sources (Se and NH-N) interacted to improve the yield, quality, and safety of maize to ensure food security and quality assurance under the stress of heavy metal Hg.

Preparation of a Novel Millet Straw Biochar-Bentonite Composite and Its Adsorption Property of Hg in Aqueous Solution.

The remediation of mercury (Hg) contaminated soil and water requires the continuous development of efficient pollutant removal technologies. To solve this problem, a biochar-bentonite composite (CB) was prepared from local millet straw and bentonite using the solution intercalation-composite heating method, and its physical and chemical properties and micromorphology were then studied. The prepared CB and MB (modified biochar) had a maximum adsorption capacity for Hg of 11.

[Effects of exogenous lead on the growth and lead accumulation characteristics of roadside dominant herbaceous plants in Shanxi Province].

A greenhouse pot experiment was conducted to study the effects of different concentration (0, 500, 1000, 1500 mg x kg(-1)) lead (Pb) on the growth and Pb absorption and accumulation of 14 roadside dominant herbaceous plants in Shanxi Province. With increasing Pb concentration in the pot, Amaranthus retroflexus and Sorghum bicolor x S. sudanese appeared obviously toxic symptoms, while the other 12 test plants had higher Pb tolerance, with no significant decrease in their plant height and biomass, compared with control.