钝顶螺旋藻(Spirulina platensis)是一种具有高光能利用率和高蛋白的生物资源。我们自84年春由中国科学院武汉水生所所提供的钝顶螺旋藻藻种进行养殖试验研究,其中在培养液的配方上用尿素(肥料)来代替 CFTRI 培养液中的硝酸钠(商品级纯化学药品),常得到良好的效果,但有时也出现过氨中毒现象。究竟用尿素还是用硝酸钠作为氮源好,各有关试 Spirulina platensis is a biological resource with high light energy utilization and high protein content. We tested the culture of Spirulina platensis from Spirulina platensis provided by the Wuhan Institute of Hydrobiology, Chinese Academy of Sciences in the spring of 1984, in which urea (fertilizer) was used instead of sodium nitrate in CFTRI medium in the formulation of the broth (Commercial Grade Purification Drugs), often get good results, but sometimes there have been ammonia poisoning. After all, urea or sodium nitrate as a good source of nitrogen, the relevant test