%0 Journal Article
%T Effects of Different forms of P Fertilizers on Phytoremediation for As-Contaminated Soils Using As-Hyperaccumulator Pteris vittata L.<br>不同磷肥对砷超富集植物蜈蚣草修复砷污染土壤的影响
%A LIAO Xiao-yong
%A CHEN Tong-bin
%A YAN Xiu-lan
%A XIE Hua
%A XIAO Xi-yuan
%A ZHAI Li-mei
%A <br>廖晓勇
%A 陈同斌
%A 阎秀兰
%A 谢华
%A 肖细元
%A 翟丽梅
%J 环境科学
%D 2008
%I 
%X Fertilization has become one of the essential measures for enhancing efficiency of phytoremediating contaminated soils with heavy metal. In order to screen optimal P fertilizer for As-phytoremediation, a greenhouse study was conducted on the growth, As-accumulation and uptake of N, P and K by Pteris vittata L. in As-contaminated soils with different forms of P fertilizers. The results indicated that the biomass of plant with As addition decreased compared to no As-addition treatments except fused calcium magnesium phosphate (CaMg-P) treatment. The plants in As addition soils with CaMg-P, calcium dihydrogen phosphate (CDP) and di-ammonium phosphate (DAP) had higher biomass than those with other P fertilizer and control (0.83 g/pot). The As accumulations of plant aboveground in As addition soils are in order of CDP> CaMg-P> DAP> Potassium Phosphate Monobasic> Monosodium phosphate>control>>Calcium superphosphate. The efficiency of As removal from As addition soils with CDP was the highest, 7.28%. Thus it can be seen the ability of phytoremediation using P. vittata could be improved by P fertilization, which CDP should be recommended preferentially and CaMg-P and DAP is considered as replaceable fertilizer for sake of pH, N, P and available As in phytoremediated soils.
%K Pteris vittata L
%K arsenic
%K phosphorus fertilizer
%K phytoremediation<br>蜈蚣草
%K 砷
%K 磷肥
%K 植物修复
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=D7C1B8CEFAFA59B945E46904FBC38B04&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=F3090AE9B60B7ED1&sid=60E09D0BCD457535&eid=52DD94C3323CD74D&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=21