In a nutshell, the invention refers to the composition of agricultural particles that can be decomposed into water. More specifically, the invention refers to the particle composition that can be decomposed into water, and the particle includes at least one insoluble culture nutrient or pesticide active component in water or algae, and one or more chemically acceptable agrochemical precursors,Therefore, the surface density of particles is less than 1.5ml/ml, and the hardness is at least 1n. The invention also refers to the composition decomposed into particles in water, including at least one algae and at least one acceptable agricultural chemical precursor, with particle size of 0.1 μ m - 50 μ M, The particle size is between 0.1mm and 6mm, and the wear strength of particles is at least 50%. In addition,The invention refers to the preparation process of decomposing into particles in water, including one or more insoluble culture nutrients or pesticide active ingredients in water or algae. The invention also relates to a plant or soil reinforcement method, or plant or plant spreading material or plant or animalIt can be decomposed into particles in water, including insoluble nutrients or pesticide active ingredients in water or algae. The invention also relates to a crop protection method, wherein the granule component can be decomposed into water, at least including an effective pesticide component.RESUMEN La invención se refiere a una composición granular agrícola desintegrable en agua. Más particularmente, la invención se refiere a una composición granular desintegrable en agua, en donde los gránulos incluyen al menos un nutriente de cultivo insoluble en agua o algas o ingrediente activo pesticida, y uno o más excipientes agroquímicamente aceptables, por lo que los gránulos tienen una densidad aparente de menos de 1.5 gm/ml y dureza de al menos 1 Newton. La invención se refiere además a una composición granular desintegrable en agua que incluye al menos un alga y
