Nitro-Phos Superturf 19-4-10 Fertilizer
Superturf is our best formula with environmental concerns in mind. Contains Methelyne Urea. 50% of the nitrogen is slow release for less nitrogen run-off. Feeds up 12 to 16 weeks. Contains 4% iron and extra amounts of magnesium, manganese, and zinc. Covers 7,600 sq.ft.