乌梁素海网围养殖草鱼及氮、磷转化试验

Pen Grass Carp Culture in Wuliangsuhai and The Transformation of Nitrogen and Phosphorus

2006年项目组与乌梁素海渔场合作在乌梁素海进行了草鱼网围养殖试验,试验面积56hm2,投放2龄草鱼种14489kg,产出草鱼商品鱼49607kg,实现利润255187元,投入产出比12∶.1。草鱼净增重35118kg,试验利用水草140万kg,转化氮、磷、钾的量分别为1436kg、124kg和579kg。实现了通过生物治理方法达到延缓湖泊富营养化、沼泽化进程的目的。

An Experiment on culture grass carp Ctenopharyngodon idellus(Valenciennes) in net cage united with Wuliangsuhai fishery in Wuliangsuhai lake was carried in 2006.The experimental area is 56 ha,We inputed 2 year's grass carp seedling 14489kg in the net cage.Until October,the yield of commodities grass carp is 49607kg totally,it make profit 255187 Yuan,the output than input is 2.1.Because the increase net yield of the grass carps feed with 1400000kg waterweeds is 35118kg,so it transferred out N 1436kg,P 124kg,and K 579kg from the lake.The experiment found out a biological way to delay the lake eutrophication and swamp effectly.