Soil Test Fertilizer Recommendations for Alabama Crops

 

Nutrient Recommendations for

 Annual Legume with Small Grain and Ryegrass

(Arrowleaf Clover, Crimson Clover, Vetch, Caley Peas)

(Crop Code No. 05)

Phosphorus

Potassium

Very high
High
Medium
Low
Very low

Pounds N-P2O5-K2O per acre

Very high
60-0-0
60-0-0
60-0-60
60-0-100
60-0-120

High
60-0-0
60-0-0
60-0-60
60-0-100
60-0-120

Medium
60-60-0
60-60-0
60-60-60
60-60-100
60-60-120

Low
60-100-0
60-100-0
60-100-60
60-100-100
60-100-120

Very low
60-120-0
60-120-0
60-120-60
60-120-100
60-120-120

 

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 - 2.42X
1
Y = 120 -1.53X
3
Y = 120 - 3.98X
2
Y = 120 -1.02X
4
Y = 120 -1.69X
3
Y = 120 -0.77X

4
Y = 130 -0.62X
* - 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

On grass-legume mixtures, apply 60 pounds of N in early spring unless no additional forage growth is needed or the legume occupies one-half or more of the ground cover.

For reseeding clover, or clover seed harvest, apply 1 to 1.5 pounds B per acre.

K requirement level

1

N rate

60

Lime code no.

1

PK code no.

2

Mg code no.

1

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