METHOD AND APPARATUS FOR SUPPRESSING PROLIFERATION OF PHYTOPLANKTON AND PROLIFERATION-SUPPRESSING AGENT

摘要

PROBLEM TO BE SOLVED: To provide a method capable of preventing abnormal proliferation of phytoplankton at a low cost without exerting bad influence on aquatic animals. SOLUTION: Proliferation of phytoplankton is suppressed by immersing a reaped plant body (the plant body block 3) of the genus Phragmites into water and then making a component produced by immersion in a target water area act on water in the target water area.