利用均匀设计法设计得到的 12种培养基及对照 Zarrouk培养基对钝顶螺旋藻 ( Spirulinaplatensis) S6品系进行培养 ,研究了添加磷酸盐的不同培养基下螺旋藻对磷酸盐的吸收利用。结果表明 ,螺旋藻 S6对磷酸盐的净利用量在 0 .2 0～ 0 .86mmol/ L之间 ,且与螺旋藻生长速度呈线性关系 ;磷酸盐为螺旋藻生长利用的主要磷源 ,含量不足会限制螺旋藻的正常生长 ;培养基中的磷酸盐添加量以1.16mmol/ L左右最为适宜 ,既可满足藻体的最佳生长 ,又可降低约 60 %的磷源养殖成本 Spirulina platensis S6 lines were cultured using 12 mediums designed by uniform design and control Zarrouk medium. The phosphate absorption and utilization of Spirulina platensis under different culture medium were studied. The results showed that the net utilization of phosphate by Spirulina S6 was between 0.2 0 ~ 0.86 mmol / L, and it was linear with the growth rate of Spirulina platensis. Phosphate was the main phosphorus source for the growth and utilization of Spirulina, Insufficient will limit the normal growth of Spirulina; phosphate in the medium to 1.16mmol / L or so the most appropriate, not only to meet the optimal growth of algae, but also reduce the cost of about 60% of the phosphorus farming costs