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Table 5. Suggested Maintenance Fertilization of Established Lawns.


Monthly application ratea
TurfJF MAMJ JAbS OND Total lb N/1,000 sq ft/yr
Bahiagrass----1/2 -1/2- --- -1
Bermudagrass (common)-- --1 111 1/2-- -4.5
Bermudagrass (hybrid)-- -1/21 to 1/2 1 to 1/211 1/2-- -5 to 6
Centipedegrassc-- --- 1/2-- --- -1/2
Fescue, tall1/2 to 1- --- --- 1-1 -2.5 to 3
Kentucky Bluegrass1/2 to 1- --- --- 1-1 -2.5 to 3
Kentucky Bluegrass/ fine fescue1/2 to 1 --- --- -1- 1-2.5 to 3
Kentucky Bluegrass/ tall fescue1/2 to 1 --- --- -1- 1-2.5 to 3
Kentucky Bluegrass/ tall fescue/fine fescue1/2 to 1--- --- -1- 1-2.5 to 3
Kentucky Bluegrass/ perennial ryegrass1/2 to 1 --- --- -1- 1-2.5 to 3
St.Augustinegrass-- --1/2 1/211/2 --- -2.5
Zoysiagrass-- -1/2- 1/2-1/2 --- -1.5

Note: All rates are per 1,000 sq ft. Multiply by 43.5 to convert to acres. Follow table suggestions in the absence of soil test recommendations to the contrary. With the exception of centipedegrass, use a complete (N-P-K) turf-grade fertilizer in which 1/4 to 1/2 of the nitrogen is slowly available and that has a 3-1-2 or 4-1-2 analysis (for example, 12-4-8 or 16-4-8). Fertilize established centipedegrass using a low phosphorus, high potassium fertilizer with an analysis approaching 1-1-2 or 1-1-3. Fertilizers without phosphorus are preferred if soils supporting centipedegrass show moderate to high levels of phosophorus.
aDates suggested are for the central piedmont. For the west, dates may be 1 to 2 weeks later in the spring and earlier in the fall; for the east, 1 to 2 weeks earlier in the spring and later in the fall.
bIn the absense of soil test recommendations, apply about 1 lb of pottasium per 1,000 sq ft, using 1.6 lb of muriate of potash (0-0-6), 5 lb of sul-po-mag (0-0-22), or 2 lb of potassium sulfate (0-0-50) of bermudagrass, centipedegrass, St.Augustinegrass, and zoysiagrass.
c Centipedegrass should be fertilized very lightly after establishment. An additional fertilization in August may enhance centipedegrass performance in coastal locations. Avoid using any phosphorus on centipedegrass after establishment.