%0 Journal Article
%A XU Ling-yue
%A MA Hong-hai
%A WANG Chen-wen
%A WANG Xiu-fang
%A WANG Sheng-li
%T Removal of Nitrogen and Phosphorus by Two Plants Cultivated on Floating Bed at Different N/P Ratios
%D 2013
%R 10.3969/j.issn.1001-5485.2013.03.002
%J Journal of Yangtze River Scientific Research Institute
%P 8-11
%V 30
%N 3
%X <p>To research the ability of absorbing&nbsp; nitrogen and phosphorus, experiments on rice and swamp cabbage(<em>Ipomoea aquatica</em>) were carried out. Rice and swamp cabbage were transplanted on floating beds on the surface of eutrophic water bodies of different N/P ratios (8∶1, 25∶1, and 55∶1) in 25L plastic buckets. Results show that rice and swamp cabbage can both absorb the nitrogen and phosphorus from water bodies, and are recommended as floating-bed plants to control eutrophication. Among the three water bodies of different N/P ratios, the amount of&nbsp; TP removed by rice was higher than that by swamp cabbage, while TN and NH<sub>3</sub>-N removed by rice were smaller than those by swamp cabbage. Different plants should be chosen depending on the characteristics of water bodies. In water body of low N/P ratio (8∶1), TN, NH<sub>3</sub>-N, and TP were best removed by rice and swamp cabbage, with the net removal rate of 19.0%, 91.4%, 95.0% by&nbsp; rice, and 28.2% , 99.2%, and 87.2% by swamp cabbage respectively.&nbsp;&nbsp;&nbsp;</p>
%U http://ckyyb.crsri.cn/EN/10.3969/j.issn.1001-5485.2013.03.002