REFERENCE SUFFICIENCY RANGES
FRUIT & NUT CROPS

Grape, Muscadine

C. Owen Plank and C. R. Campbell

• Critical Values

  None established.

• Sampling Procedures

  Sample the most recent mature leaves adjacent to fruit clusters taken in mid to late summer, but before final swelling of the fruit.

• Sufficiency Ranges
  
  

  Macronutrients
  N	P	K	Ca	Mg	S
  1.65–2.15%	0.12–0.18%	0.80–1.20%	0.70–1.10%	0.15–0.25%	0.15–0.60%

  
  

  Micronutrients
  Fe	Mn	Zn	Cu	B
  60–120 ppm	60–150 ppm	18–35 ppm	5–10 ppm	15–25 ppm

• DRIS Norms

  DRIS norms have not been established for muscadine grape.

• Remarks

  The sufficiency range data were taken from portions of the data cited in the references and supplemented with survey data from samples analyzed at the University of Georgia Soil Testing and Plant Analysis Laboratory.

• References

  Cummings GA. 1977. Variation in the concentration of certain elements in muscadine grape leaves related to season, leaf portion and age. J Am Soc Hort Sci 102(3):339–42.

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

  Cummings GA, Fish AS, Nesbitt WB, Underwood VH. 1973. The influence of mineral nutrition and time of year on the elemental concentration of muscadine grapes (Vitis rotundifolia). Commun Soil Sci Plant Anal 4:211–8.

  Cummings GA, Lilly P. 1984. Soil pH rate for fruit and elemental concentration of muscadine grapes. HortScience 19(6):831–2.

  Lott WL. 1952. Magnesium deficiency in muscadine grape vines. Proc Am Soc Hort Sci 60:123–31.

  Marcy JE, Carroll DE, Cummings GA. 1981. Changes in concentration of certain elements during maturation of muscadine grapes (Vitis rotundifolia). J Food Sci 46:1891–3, 1897.

  Plank CO. 1989. Plant analysis handbook for Georgia. Athens (GA): University of Georgia Cooperative Extension Service. p 43–4.

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