Crop Code No. 084: Grapes (Bunch and Muscadine)

 Soil Groups 1, 2, 3, or 4     Desired pH 6.0 – 6.5
Phosphorus Potassium
  Low Medium Sufficient High Excessive
  pounds of N-P2O5-K2O per acre
Low 60-80-120 60-80-100 60-80-80 60-80-40 60-80-0
Medium 60-30-120 60-30-100 60-30-80 60-30-40 60-30-0
Sufficient 60-30-120 60-30-100 60-30-80 60-30-40 60-30-0
High 60-  0-120 60-  0-100 60-  0-80 60-  0-40 60-  0-0
Excessive 60-  0-120 60-  0-100 60-  0-80 60-  0-40 60-  0-0

COMMENTS (1, 4, 5, 6, 7, 105, 260, 261, 650, 652, 653)

260  Apply fertilizer in February, except on sandy soils, apply in split applications, one-half in February and one-half when cane growth is about 6 inches long.  The nitrogen rate should be 40 and 80 lbs nitrogen per acre.  Use lower rate for older vines or when pruning weight is greater than 2 pounds per plant.  Use higher rate for younger vines, when pruning weight is less than 2 lbs.  To convert acre recommendations to per plant rate, divide by 544 for bunch grapes and 270 for Muscadine grapes.

261  This is a boron sensitive crop.  Apply 0.6 lbs boron per acre or apply Solubor in two cover sprays at the rate of 1 lb Solubor per 10 gallons of water.  (When soil test boron is not excessive)

653  Soil test zinc is low, however, this is not a zinc sensitive crop, therefore no zinc is recommended.  (When soil test zinc is low)