Buystar Extra NPK 25-05-15 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 plant metabolism, soil-based processes and the nutritional value of the soil solution. Buystar Extra NPK 25-05-15 provides an elevated quantity of readily available Nitrogen, capable of stimulating plant growth and development, ensuring high yields and increasing resistance to adversity. Due to the presence of RyZea, the product has a remarkable ability to unlock the nutrients in the soil and facilitate root absorption.