Mycorrhizal fungi, biochar, and selenium increase biomass of Vigna radiata and reduce arsenic uptake

Abstract

Growth and As uptake of mung bean (Vigna radiata) in roots, shoots, and grains of different genotypes grown in soil with high As level (30 mg kg−1) amended with arbuscular mycorrhizal fungi, selenium, and biochar was investigated. Arsenic content in grains was reduced on average by 45% with any of the soil amendments. More specifically, the As concentrations in grains were reduced by 57% with arbuscular mycorrhizal fungi and by 60% with Se amendments. Also, great differences in As-uptake between varieties have been observed.