Basfoliar^® Buffer SL, on the one hand, is a liquid formulation supplying the nutrients phosphorous, magnesium and zinc, and on the other hand, it is a product buffering the pH of spraying solutions towards a lower level (pH 1 in original formulation), lowering for exemple the pH of alkaline waters, or maintaining the pH of product mixtures to allow high effectivity of plant protection products and foliar fertilizers. Particularly in leafy vegetable crops and plants with developing fruit (fruit and vegetables), foliar sprays should be finely distributed to avoid runoff and drying of the accompanying agent.