Buystar Extra NK 5-52 is a microcrystalline fertigator characterized by total and immediate solubility, by a high amount of Potassium and by the presence of RyZea, the natural, biological activator that enriches the formulation of components enhancing the plant metabolism, the land-based activity and the nutritional value of the soil solution. Buystar Extra NK 5-52 provides a high amount of Potassium which directly affect the quality of the final production. In fact, Potassium shifts plant’s metabolism from vegetative to reproductive development, containing excessive growth. Furthermore, by regulating the osmotic cell pressure, Potassium accompanies fruit development, improving cell expansion and qualitative characteristics.