With the development of social economy, waterbody entrophication has become a serious environmental problem and have aroused the attention of many people. The harm caused by water bloom and red tide was frequently reported, which has prevented the development of society. However, countermeasures to controll the freshwater and red tide have not been taken yet. Anabaena flos-aquae is one of blue algae which leads to the birth of water bloom. The effect of Metsulfuron-methyl and Bensulfuron-methyl on the growt...