REFERENCE SUFFICIENCY RANGES
FRUIT & NUT CROPS

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Blueberry, Rabbiteye

C. Owen Plank and M. R. Tucker

• Critical Values

  None established.

• Sampling Procedures

  Take mature leaves from mid-portion of current season's growth (lateral shoots, position 4, 5, and 6), during the first two weeks after harvest.

• Sufficiency Ranges
  
  
  • Two Weeks after Harvest
    
    

    Macronutrients
    N	P	K	Ca	Mg	S
    1.20–1.70%	0.08–0.20%	0.35–0.60%	0.25–0.70%	0.14–0.20%	0.11–0.25%

    
    

    Micronutrients
    Fe	Mn	Zn	Cu	B
    25–70 ppm	25–100 ppm	10–25 ppm	2–10 ppm	12–35 ppm

• DRIS Norms

  DRIS norms have not been reported for blueberry.

• Remarks

  The sufficiency range data given above are a result of a review of the literature, and several years plant analysis survey data compiled at the University of Georgia Soil Testing and Plant Analysis Laboratory.

• References

  Austin ME, Gaines TP. 1984. An observation of nutrient levels in old, unfertilized rabbiteye blueberry plants. HortScience 19(3):417–8.

  Cummings GA. 1986. Personal Communication. N.C. State University, Dept. of Soil Science, Raleigh, NC.

  Plank CO. 1989. Plant analysis handbook for Georgia. Athens (GA): University of Georgia Cooperative Extension Service. 64 p.

  Spiers JM. 1978. Effects of pH level and nitrogen source on elemental leaf content of ‘Tiftblue’ rabbiteye blueberry. J Am Soc Hort Sci 103(6):705–8.

  Spiers JM. 1979. Calcium and nitrogen nutrition of ‘Tiftblue’ rabbiteye blueberry in sand culture. HortScience 14(4):523–5.

  Spiers, JM. 1982. Seasonal variation of leaf nutrient composition in ‘Tiftblue’ rabbiteye blueberry. J Am Soc Hort Sci 107(2):255–7.

  Spiers, JM. 1983. Influence of N, K, and Na concentration on growth and leaf element content of ‘Tiftblue’ rabbiteye blueberry. HortScience 18(2): 223–4.

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