Abstract: The present invention relates to a foliar fertilizer composition comprising at least one fertilizer and one or more of sun-blocking compounds chosen from the group of kaolin, bentonite, calcium carbonate and organic compounds that block UV radiation. Preferably, the sun-blocking compound is an organic compound that blocks UV radiation, and may be selected from the group of benzophenone type compounds, benzimidazole type compounds, hydroxybenzoyl benzoate type compounds, benzotriazol type compounds, cinnamido type compounds, flavonoids, antioxidants or lignosulfonates.