Soil Test Fertilizer Recommendations for Alabama Crops

 

Nutrient Recommendations for

Watermelons, Cantaloupes, Cucumbers, Lima Beans, Snap Bunch Beans, Squash, and Okra

(Crop Code No. 65)

Phosphorus

Potassium

Very high
High
Medium
Low
Very low

Pounds N-P2O5-K2O per acre

Very high

80-0-0
80-0-40
80-0-80
80-0-120
80-0-120

High

80-40-0
80-40-40
80-40-80
80-40-120
80-40-120

Medium

80-80-0
80-80-40
80-80-80
80-80-120
80-80-120

Low

80-120-0
80-120-40
80-120-80
80-120-120
80-120-120

Very Low

80-120-0
80-120-40
80-120-80
80-120-120
80-120-120

 

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 = 120 - 1.27X
1
Y = 130 - 0.72X
3
Y = 120 - 2.11X
2
Y = 130 - 0.48X
4
Y = 120 - 0.89X
3
Y = 130 - 0.35X

4
Y = 130 - 0.35X
* - Use Soil Group from soil test report, if available.
** - Y = pounds fertilizer P2O5 or K2O per acre required; X = soil test P or K

 

K requirement level

2

N rate

80

Lime code no.

1

PK code no.

19

Mg code no.

2


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