The invention refers to an agricultural particle composition which can be decomposed into water. More specifically, the invention refers to the composition decomposed into particles in water, in which the particles include at least one culture nutrient that is insoluble in water or algae or active pesticide composition, and one or more chemically acceptable chemical precursors,Therefore, the surface density of particles is less than 1.5ml/ml, and the hardness is at least 1n. The invention refers to the composition decomposed into particles in water, including at least one algae and at least one acceptable agricultural chemical precursor, the particle size is within the range of 0.1 μ m - 50 μ m, the particle size is between 0.1 mm and 6 mm, and the wear-resistant particles. This is at least 50%. In addition,The invention refers to the preparation process of decomposing into particles in water, including one or more insoluble cultures or active pesticide components in water or algae. Another aspect of the invention is a plant or soil defense method, or a plant spreading material, orConsisting of particles dissolved in water, including insoluble nutrients or active pesticide ingredients in water or algae. The invention refers to a crop protection method in which the particle composition is decomposed in water, at least including an effective pesticide composition.La invencion se refiere a una composicion granular agricola desintegrable en agua. Mas particularmente, la invencion se refiere a una composicion granular desintegrable en agua, en donde los granulos incluyen al menos un nutriente de cultivo insoluble en agua o algas o ingrediente activo pesticida, y uno o mas excipientes agroquimicamente aceptables, por lo que los granulos tienen una densidad aparente de menos de 1.5 gm/ml y dureza de al menos 1 Newton. La invencion se refiere ademas a una composicion granular desintegrable en agua que incluye al menos un alga y al menos un excipiente agroquimicamente acepta
