Finishing the hydroseeding bonded fiber matrix (BFM) along shoulder of runway at Sea Tac International Airport. The area has been amended with compost, track walked, BFM applied to cover 95% minimum. After the BFM cures, the area will be watered to obtain 85% grass cover as soon as possible. 100% nitrogen fertilizer used, 50% slow release, 50% regular. Because of rainfall, nitrogen in the soil is washed out. Phosphorus and potassium test okay in the soil, no need to add more. Time restrictions requiring opening the runway as soon as possible necessitate these measures.
Photo: Dave Jenkins, CPESC