３种微生态制剂对养殖水体水质影响的比较研究

对3种微生态制剂改善河蟹养殖池水质的效果进行分析比较。实验组各池中分别加入超浓缩光合细菌(PSB)、"西菲利"活菌生物净水剂、活菌净水剂以及3种微生态制剂组成的混合制剂。观察氨态氮、亚硝态氮、硫化氢、溶解氧、化学耗氧量、pH及异养菌总数等水质指标。结果表明:3种微生态制剂均能改善水质,抑制异养菌的过度增长,但对水质指标的改善各有侧重,混合制剂优于单一制剂。

Comparison of Influence of Three Micro-ecological Pharmaceutics

The effects of three effective microorganisms on the water quality in farming crab ponds were studied comparatively. Photosynthetic bacteria, Bacillus sp. , nitrobacteria and their complex were added into farming crab ponds respectively. the index of ammonium nitrogen, nitrite nitrogen, sulfureted hydrogen, DO, COD, pH, and the number of heterotrophic bacteria were measured every five days. Our results showed that three effective microorganisms can decompose organic compounds effectively, but they emphasize particularly on difference aspects, and they can restrain excess increasing of heterotrophic bacteria. This experiment approved that effective microorganisms can improve water quality in a certain extent. The complex of effective microorganisms which gather virtues from all three microorganisms excel single train bacterium.