Abstract: Hydroponic culture plants come into fashion in recent years.When the solution is exposed in the sunlight, algae will generate quickly and it is not good for the growth of plants.In the experience, active carbon, charcoal and VT-500 were added in the nutrient solution to study the inhibitory effects on algae in the plants hydroponic culture.The results showed that notable effects of the algae inhibition and stable level of pH were obtained when treated with active carbon in the solution.The effects of active carbon treatment were better than that of charcoal treatment and VT-500 treatment produced no good results for algal inactivation.

Key words: hydroponic culture, algae, active carbon, charcoal, VT-500

摘要： 针对透明花盆水培花卉易产生藻类的情况,采用木炭、活性炭及水体净化剂VT-500进行抑制藻类生长试验。结果表明,水培花卉中,每升营养液加入2 g活性炭,既能有效抑制营养液中藻类生长,又能维持营养液pH相对稳定;加入一定量木炭在一定程度上也能抑制藻类生长或缓解营养液pH下降;而施用一定剂量的水体净化剂VT-500,虽能在一定程度上缓冲pH值下降,但同时会促进藻类生长。

关键词: 水培, 藻类, 活性炭, 木炭, VT-500