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*Crop Code No. 082*
Blueberries (mature plants)

Soil Groups 1, 2, 3, or 4				Desired pH for Blueberries 4.8-5.3 Desired pH for Brambles 6.0-6.5
Phosphorus	Potassium
	Low	Medium	Sufficient		High	Excessive
	Pounds of N-P₂O₅-K₂O per acre
Low	40-60-80	40-60-50	40-60-30		40-60-20	40-60-0
Medium	40-40-80	40-40-50	40-40-30		40-40-20	40-40-0
Sufficient	40-20-80	40-20-50	40-20-30		40-20-20	40-20-0
High	40- 0-80	40- 0-50	40- 0-30		40- 0-20	40- 0-0
Excessive	40- 0-80	40- 0-50	40- 0-30		40- 0-20	40- 0-0

COMMENTS (4, 5, 6, 7, 105, 269, 270, 275, 650, 651, 652, 653)

269 For mature plants, apply one-half the recommended fertilizer rate before bloom. Apply balance of fertilizer 6 to 8 weeks later. Topdress additional 20 lbs nitrogen per acre anytime after harvest up to mid July. Acid-forming fertilizers that do not contain chlorides are preferred. Ammonium sulfate (21-0-0) should be the nitrogen source for blueberries. Caution: Too much fertilizer in one application without adequate water may damage blueberry plants. Iron and/or magnesium deficiency are two nutritional deficiencies that often occur with blueberries. Use a plant analysis to determine nutrient element status, following recommendations for correcting insufficiencies.

Each plant requires an area 12 feet long and 6 feet wide.

To convert acre recommendation to rate per plant, divide acre recommendation by 605.

270 Plant blueberries on recently cleared unlimed land for best results. Do not apply lime except in special cases and then only after consulting your County Extension Agent. Do not apply fertilizer when blueberries are transplanted. Use liberal quantities of peat moss or rotten sawdust when setting plants.

275 It may be necessary to lower the soil pH for best growth of acid-loving plants, such as blueberries. Wettable sulfur (90% S) may be used to decrease soil pH. The best soil pH for rabbiteye blueberries is between 4.5 and 5.5. To lower the soil pH, apply sulfur before planting if the soil pH is above 5.5, and thoroughly mix sulfur within the soil of the planting area. If applied around established blueberry plants, thoroughly water-in sulfur after application, taking care to wash off all above-ground plant parts. Acid-forming fertilizers, such as those containing ammonium sulfate, can assist in lowering soil pH. For more information regarding the amount of sulfur to apply, based on soil type and soil pH, call the Clemson Home & Garden Information Center at 1-888-656-9988. (Recommendation for Crop Codes 082 and 203 and soil pH above 5.5)

651 The soil test boron is low, however, this is not a boron sensitive crop, therefore no boron is recommended. (When soil test boron is low)

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)