摘要
对螺旋藻室外培养和培养液主要养分消耗进行了90天的监测,获得了藻的生长和培养液中No_3^-、P_2O_5、K^+及NaHCO_3的动态规律;发现在室外按少量分批添加的原则维持有效磷(P_2O_5)80mg/L,No_3^-150mg/L,K^+250mg/L的低浓度可以支持螺旋藻的生长。本文还讨论了后期改变培养条件,提高NaHCO_3利用率的途径。
The outdoor growth of Spirulina platensis and the consumption of macro-nutrients in medium were observed for 90 days. The growth pattern andconsumption patterns of NO_3^-P_2O_5, K^+ and NaHCO_3 were achieved. It wasfound that a supply of small amount nutrient for several times, keepingNO_3^-,P_2O_5, K^+ at low concentration of 150mg/L, 80mg/L, 250mg/L or lower,respectively, could support normal outdoor growth of Spirulina. Spirulinawas demonstrated to be unable to use CO_3=and a method for changingcultural condition to increase the utilization ratio of NaHCO_3 was proposed.
关键词
螺旋器
养分动态
室外培养
Spirulina
Dynamic change of macronutrient