Migration and transformation of cadmium in rice - soil under different nitrogen sources in polymetallic sulfide mining areas.

ABSTRACT: We conducted pot experiments to assess the bioavailability of cadmium (Cd) in contaminated rhizosphere soil and accumulation in rice organs in response to nitrogen (N) supply ((NH₄)₂SO₄, NH₄NO₃, NH₄Cl). The results showed that the concentration of bioavailable Cd in rice rhizosphere soil was (NH₄)₂SO₄ treatment > NH₄Cl treatment > NH₄NO₃ treatment at the same level of N application and growth period; the Cd concentration in rice roots was (NH₄)₂SO₄ treatment > NH₄NO₃ treatment > NH₄Cl treatment; and the Cd concentration in rice straw was NH₄NO₃ treatment > NH₄Cl.

SUBMITTER: Zhang X 

PROVIDER: S-EPMC7016120 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature