PACE Turf - Turfgrass Information Center

Turfgrass nitrogen demand

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Estimated nitrogen demand by turfgrasses in the US based upon Growth Potential (GP). To estimate N demand, the maximum monthly cool season GP (C3GP) or warm season GP (C4PG), which ever was higher, was summed over the course of the year for more than 40,000 locations based upon zipcode and 30-year normal average monthly temperature. This estimate is likely higher than actual nitrogen applied due to several factors, one being the specified maximum amount of nitrogen that a turfgrass can use under optimum conditions,1 lb N/1000 sq ft (5 g/m^2) that was used in this computation. This graph is for educational purposes and it paints a broad portrait of nitrogen demand by turfgrasses and should not be used to direct nitrogen applications at any site.

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