Soil Test Fertilizer Recommendations for Alabama Crops

 

Nutrient Recommendations for

 Tobacco

(Flue Cured)

(Crop Code No. 26)

Phosphorus

Potassium

Very high
High
Medium
Low
Very low

Pounds N-P2O5-K2O per acre

Very high
60-50-100
60-60-120
60-80-160
60-50-200
60-50-200

High
60-50-100
60-60-120
60-80-160
60-50-200
60-50-200

Medium
60-100-100
60-120-120
60-100-200
60-100-200
60-100-200

Low
60-200-100
60-200-100
60-200-200
60-200-200
60-200-200

Very low
60-200-100
60-200-100
60-200-200
60-200-200
60-200-200

 

For more accurate fertilizer recommendations, use the equations below for your soil group:

Fertilizer Recommendation Formula
P2O5
K2O
Soil Group*
Equation**
Soil Group*
Equation**
1 & 2
Y = 210 - 3.25X
1
Y = 210 - 0.88X
3
Y = 210 - 5.36X
2
Y = 210 - 0.59X
4
Y = 210 - 2.27X
3
Y = 210 - 0.43X

4
Y = 210 - 0.43X
* - Use Soil Group from soil test report, if available.
** - Y = pounds fertilizer P2O5 or K2O per acre required; X = soil test P or K

 

Comments

Increase N to 140 pounds per acre for Burley and Darfire tobacco.

K requirement level

2

N rate

60

Lime code no.

4

PK code no.

8

Mg code no.

3

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