Buystar Extra NPK 15-05-25 is a microcrystalline fertigator, with total and immediate solubility, characterized by the extreme pureness of the raw materials and by the presence of RyZea, the natural, biological activator that enriches the formulation of components enhancing the plant metabolism, the landbased activity and the nutritional value of the soil solution. Buystar Extra NPK 15-05-25 provides an elevated quantity of Potassium and Sulphur which directly affect the quality of the final production. In fact, Potassium regulates the osmotic cell pressure and limits excessive growth while, due to the presence of Sulphur, Buystar Extra NPK 15-05-25 has a high capacity to unlock the soil nutrients and to facilitate their root absorption.