Effects of Ca and As addition on As, P and Ca uptake by hyperaccumulator Pteris vittata L. under sand culture
砂培条件下施加钙、砷对蜈蚣草吸收砷、磷和钙的影响

Arsenic, P and Ca uptake by Pteris vittata L., as affected by Ca and As addi tions, were studied under sand culture. The 3×3 factorial experiment was conduc ted with three As concentrations (0, 0.1 and 0 2 mmol/L) and three Ca concentrations (0 03, 2 5 and 5 0 mmol/L). Although biomass of root, petiole and pinna of Pteris vittata L. were not significantly (p<0 05) affected by As addition levels, petiole and pinna dry biomass production respon ded to As treatments in an identical way, and plant treated ...