Petro is the historical Agriges basal dressing line made from high-quality raw materials of organic and mineral origin, skilfully processed and blended to obtain a complete product, capable of: nourishing the plant in a balanced and constant manner over time, stimulating plant metabolism and improving the chemical, physical and biological characteristics of the soil. Petro 318 Acid ThB is a biologically active product thanks to the unique RyZea and ThioBac production technologies, which enrich it with phytostimulant molecules and exclusive siderophore bacteria. The outcome of the synergy of its various components is a product that improves root development and nutrients uptake by acidifying and desalinising the circulating solution.