PROBLEM TO BE SOLVED: To provide a method for preventing the germination of aquatic plants rooting at the bottom mud of a fresh water area such as emerging plants, floating leaf plants and submerged plants, without hardening the bottom mud of the fresh water area.SOLUTION: This germination inhibitor of the aquatic plants rooting at the bottom mud of the fresh water area is provided by including magnesium oxide powder having &le1 mm particle diameter, and preferably the germination inhibitor of the aquatic plants containing &ge80 mass% particles having &le1 mm particle diameter of the magnesium oxide powder is provided.COPYRIGHT: (C)2011,JPO&INPIT【課題】淡水水域の底泥を硬化させずに、抽水植物、浮葉植物及び沈水植物などの、淡水水域の底泥に根を張る水生植物の発芽を防止できる方法を提供する。【解決手段】淡水水域の底泥に、粒子径が1mm以下の酸化マグネシウム粉末を散布する。【選択図】なし
