Tuesday, February 07, 2012

Ohio: Updated Tri-State Fertilizer Recommendations for Phosphorous

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Fertilizer recommendations for corn (Table 1), soybeans (Table 2) and wheat (Table 3) are listed below. The tables are updated to reflect the higher yield potentials utilizing the equations from the Tri State Fertilizer Recommendations publication can be found at: http://ohioline.osu.edu/e2567/index.html. The philosophy of these recommendations can be found in the original publication.

Table 1. Fertilizer P Recommendations for Corn. (adapted from Tri-state Fertilizer Recommendations for Corn, Soybeans, Wheat and Alfalfa)

 

Realistic Yield Goal (bu/acre)

Soil Test Level

120

145

170

200

225

250

275

PPM (lb/acre)

lbs P2O5/acre recommended

5 (10)

95

105

115

125

135

145

155

10 (20)

70

80

90

100

110

120

125

15-30 (30-60)

45

55

65

75

85

95

100

35 (70)

20

25

30

40

45

50

50

40 (80)

0

0

0

0

0

0

0

 

 

 

 



Table 2. Fertilizer P Recommendations for Soybean. (adapted from Tri-state Fertilizer Recommendations for Corn, Soybeans, Wheat and Alfalfa)

 

Realistic Yield Goal (bu/acre)

 

Soil Test Level

30

40

50

60

70

80

90

PPM (lb/acre)

lbs P2O5/acre recommended

5 (10)

75

80

90

100

105

115

125

10 (20)

50

55

65

75

80

90

100

15-30 (30-60)

25

30

40

50

55

65

70

35 (70)

10

15

25

25

30

35

35

40 (80)

0

0

0

0

0

0

0

 

 

 

 

 


Table 3. Fertilizer P Recommendations for Wheat. (adapted from Tri-state Fertilizer Recommendations for Corn, Soybeans, Wheat and Alfalfa)

 

Realistic Yield Goal (bu/acre)

Soil Test Level

50

65

80

95

110

125

PPM (lb/acre)

lbs P2O5/acre recommended

15 (30)

80

90

100

110

120

130

20 (40)

55

65

75

85

95

105

25-40 (50-80)

30

40

50

60

70

80

45 (90)

15

20

25

30

35

40

50 (100)

0

0

0

0

0

0

 


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