Effect of N, P on growth and arsenic accumulation in fern Pteris vittata L.

Abstract

More  and  more  attention  has  been  paid  to  the  research  on  Phytoremediation  and hyperaccumulators. Nowaday, the people concentrate in how to enhance the abilities of plants to accumulate  more  contaminants by addition of amending  reagents.  In  this  study,  the  pot experiments were conducted to understand the effectof N, P on Arsenic accumulation in Pteris vittata L.. Our study was  undertaken to examine the effect of Phosphorus and Nitrogen on Arsenic  accumulation in the  As - Hyperaccumulator,  as  well  as  to verify the feasibility  of Phosphorus and Nitrogen applied as fertilizer to increase the arsenic  accumulation  in  Pteris vittata. The result showed that, Arsenic concentration in  the frond is higher than that in the root of the fern. With the P added ≥400 ppm and N added 100 - 200 ppm, Arsenic accumulation in the fern were  increased  sharply.  Obviously, Nitrogen and Phosphorus is also a potentialaccelerator for Phytoremediation of Arsenic contaminated soil.