摘要
通过2种常用化肥对固氮鱼腥藻(Anabaena azoticaLey),球胞鱼腥藻(Anabaena sphaericaBorn),多变鱼腥藻(Anabaena variabilioKutzing)影响的研究。结果表明,尿素和碳酸氢铵在低浓度(20 mg/L以下)表现为促进,当浓度为80 mg/L时,则显著抑制其种群生长;且高浓度时,尿素和碳酸氢铵对3种藻产生较强影响,处理96 h时的EC50值分别为54.0,67.0,85.7 mg/L及73.7,63.1,92.2 mg/L。
The test of fertilizers in rice fields on Anabaena azotica Ley ,Anabaena sphaerica Born ,Anabaena variabilio Kutzing, were carried out. The result showed that could stimulate the growth of fixing Blue-green algaes when its concentration were under 20 mg/L, and it would control obviously population quantities of fixing Blue-green algaes when their concentration were 80 mg/L. Then, fertilizers showed strong effects when they restrained under high concentration, after dealed with fertilizers for 96 h, the EC50 of Anabaena variabilio Kutzing Anabaena azotica Ley and Anabaena sphaerica Born were 54. 0,67.0,85.7 mg/L in carbamide and 73.7,63.1,92.2 mg/L in ammonium bicarbonate respectively.
出处
《云南农业大学学报》
CAS
CSCD
2006年第3期333-335,340,共4页
Journal of Yunnan Agricultural University
基金
上海市科委资助项目(023112055)
关键词
尿素
碳酸氢铵
固氮蓝藻
影响
carbamide
ammonium bicarbonate
fixing Blue-green algaes
effect
