REFERENCE SUFFICIENCY RANGES
TURF AND LAWN GRASSES

Bermudagrass ('Tifgreen', Tifton-328')

C. R. Campbell and C. O. Plank

• Critical Values

  None reported.

• Sampling Procedures

  Collect representative samples of clippings after routine mowing. A double handful is an adequate sample size.

  Problem-solving samples can be taken at any time there is adequate growth. Comparative samples from "good" and "bad" areas should be taken to isolate difference between these areas.

  Monitoring samples should be taken monthly to evaluate fertility programs and identify changes needed to improve growth and quality of sod for the intended purpose.

  Samples should be shipped to the laboratory in loosely filled paper containers.

• Sufficiency Ranges
  
  
  • Fresh Clippings
    
    

    Macronutrients
    N	P	K	Ca	Mg	S
    3.0–4.0%	0.2–0.4%	1.8–2.25%	0.25–0.5%	0.15–0.3%	0.15–0.65%

    
    

    Micronutrients
    Fe	Mn	Zn	Cu	B	Mo
    50–250 ppm	20–300 ppm	15–70 ppm	5–20 ppm	5–60 ppm	0.1–2.0 ppm

    
    

    Important Ratios

    The N:S ratio should be 10–15 for best growth and quality. Sulfur is deficient when the ratio is greater than or equal to 18.

• DRIS Norms

  DRIS norms have not been reported for bermudagrass.

• Remarks

  Sufficiency ranges are based on available literature and experience interpreting plant samples.

• References

  Mills HA, Jones JB Jr. 1996. Plant analysis handbook II: a practical sampling, preparation, analysis, and interpretation guide. Athens (GA): Micro-Macro Publishing.

  Plank CO. 1989. Plant analysis handbook for Georgia. Athens (GA): University of Georgia Cooperative Extension Service. p 21–8.

Electronic Document Prepared by:
Catherine Stokes, Communication Specialist
Agronomic Division of the N.C. Department of Agriculture and Consumer Services. July 2000.