%0 Journal Article
%T Effects of Azolla on Nitrogen,Phosphorous and Growth of Spirogyra sp. in Flooded Paddy Field in Taihu Aera<br>绿萍对太湖地区稻田氮磷及水绵生长的影响
%A JIANG Yun-fang
%A TIAN Yu-hu
%A YIN Bin
%A <br>蒋云芳
%A 田玉华
%A 尹斌
%J 土壤
%D 2010
%I 
%X In this paper the effects of Azolla inoculation on the growth of Spirogyra sp. and the variation in concentrations of nitrogen and phosphorus in flood-water in paddy field were studied by a field experiment. Under the same level of fertilization, the concentrations of total nitrogen and ammonium nitrogen in flood-water with Azolla application were less than those without Azolla application. During the tillering stage, the assimilation and release of phosphorous in soil-water could be modulated with Azolla application, which reduced the risk of phosphorous loss. In addition, chlorophyll content in flood-water with Azolla application changed little, ranging from 20 mg/m3 to 45 mg/m3, in contrast, chlorophyll content without Azolla application increased gradually and was much higher than with Azolla application after 3 to 5 days, up to 85 mg/m3, indicating that the development of Azolla could inhibit algal bloom.
%K Azolla
%K Spirogyra
%K Chlorophyll-a
%K Phosphorus
%K Nitrogen<br>绿萍
%K 水绵
%K 叶绿素
%K 磷
%K 氮
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=56F69E970C6E5190CDB409D28DD0E3C6&aid=3012DE878F32CA2C3D5A1E2BD680528F&yid=140ECF96957D60B2&vid=ECE8E54D6034F642&iid=38B194292C032A66&sid=4F0B2F798E08B761&eid=1E9426A299DC9FFD&journal_id=0253-9829&journal_name=土壤&referenced_num=0&reference_num=22