Work top 2cm of soil by breaking up lumps and leveling. Add lawn soil if needed. For best results, apply Numix seed starter fertilizer 10-25-10. Spread the seed in two applications. Apply half from left to right and the other half from front to back. Gently rake the soil to cover the seed with a fine soil layer (8mm). Compact the surface using a half-filled lawn roller. Water thoroughtly using a gentle spray. Keep soil moist for 2 to 3 weeks.