CELSET is a liquid fruit set fertilizer based on nitrogen, boron and zinc, for both foliar and soil applications. CELSET prevents disorders and imperfections on fruits, so the post-harvest losses are reduced. It also induces flowering and improves fruit setting. The exclusive formulation of CELSET also supplies nitrogen, which contributes to the normal physiological functioning of crops and amino acids, which complex zinc and provide an improvement in the response of the plant to stress situations.