agrochemical formulations for application to the water surface.

agrochemical formulations for application to the water surface, consisting of: A) at least one solid core material having a specific density lower than 1 and a particle diameter of approximately about 300-1400 {um; and B) a coating layer comprising: - at least one biologically active compound, - at least one substance that has the ability to reduce the interfacial tension between water and air, - at least one oily substance and - if appropriate , one or more additives, a process for preparing such formulations and agrochemical use in the application of biologically active compounds to paddy water.