Soil Test Fertilizer Recommendations for Alabama Crops

 

Nutrient Recommendations for

Tomatoes

(Crop Code No. 62)

Phosphorus

Potassium

Very high
High
Medium
Low
Very low

Pounds N-P2O5-K2O per acre

Very high
120-0-0
120-0-60
120-0-120
120-0-180
120-0-180

High
120-60-0
120-60-60
120-60-120
120-60-180
120-60-180

Medium
120-120-0
120-120-60
120-120-180
120-120-180
120-120-180

Low
120-180-0
120-180-60
120-180-120
120-180-180
120-180-180

Very Low
120-180-0
120-180-60
120-180-120
120-180-180
120-180-180

 

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 = 180 - 1.91X
1
Y = 190 - 1.08X
3
Y = 180 - 3.16X
2
Y = 190 - 0.98X
4
Y = 180 - 1.33X
3
Y = 190 - 0.53X

4
Y = 200 - 0.52X
* - 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

Apply 1,000 pounds of gypsum per acre to tomatoes before planting. (Where Ca is rated low and no lime is recommended.)

Apply 500 pounds of gypsum per acre to tomatoes before planting. (Where Ca is rated medium and no lime is recommended.)

K requirement level

2

N rate

120

Lime code no.

2

PK code no.

18

Mg code no.

2

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