Migration and Transformation of Arsenic in Rice and Soil under Different Nitrogen Sources in Polymetallic Sulfide Mining Areas.

ABSTRACT: Nitrogen (N) fertilizer affects the migration and transformation of arsenic (As) in soil and rice. We conducted pot experiments and studied the effects of 0.1, 0.2, and 0.4 g∙kg^-1 N levels of NH₄Cl, (NH₄)₂SO₄, and NH₄NO₃ fertilizers on the As bioavailability in the As-contaminated inter-rhizosphere soil and As accumulation in the rice organs. The results showed that the concentration of bioavailable As in the rice rhizosphere soil was significantly negatively correlated with pH under the 0.4 g∙kg^-1 N level of each fertilizer. At the same N level, while the As concentration was maturity stage > tillering stage in rice stems and leaves treated with NH₄Cl and (NH₄)₂SO

SUBMITTER: Yao S 

PROVIDER: S-EPMC9604899 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature