An aggregatively stable, highly concentrated, water-soluble, suspension fertilizer, methods for its production, storage and soil application in a liquid form that is characterized by efficient plant nutrition with nutrient substances. The life cycle of the fertilizer has different states: a highly concentrated suspension at the stage of production, storage and transportation, and a water solution of the suspension prepared at the application stage to have a concentration suitable for application. The suspension is an aggregatively stable disperse system with a dense packing of crystal particles of a nutrition substance, where the dispersion medium is formed by a saturated water solution of the nutrition substance including a surfactant stabilizer that modifies surfaces of particles. The aggregative stability of the system and modification of particle surfaces by adsorption layers to prevent agglomeration of particles due to weakening the cohesion strength at contacts is provided to a degree that retains the a
