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Agronomic Crops Network

Ohio State University Extension

CFAES

Production of Other Small Grain Species

Fertilizer recommendations for the other small grain species are provided in Tables 6-12 through 6-14. Insect control recommendations can be found in Extension Bulletin 545, Insect Pests of Field Crops

Table 6-12: Recommended Nitrogen for Small Grains (Pounds Nitrogen Per Acre). 

 

 

Crop

-----Yield Goal (bu/ac)-----

 

Barley

65

90

115

 

Oats

90

120

150

Spring Application

(Spelt)

40**

75**

110**

Spring Application

(Barley)

55**

95**

135**

Spring Application

(Oats)

60**

90**

125**

Spring Application

(Rye)

60**

90**

60**

*Use short, stiff-strawed varieties.
**Reduce nitrogen rate by 40 pounds per acre on dark colored soils. 

Table 6-13: Examples of Phosphorus (Expressed as lb P2O5/ac) Recommended for Small Grains. 

 

 

Crop

-----Yield Goal (bu/ac)-----

 

Barley, Spelt

50

70

90

 

Oats

100

130

160

 

Rye

30

45

60

Soil Test Value

Annual Recommendation (lb P2O5/ac)

lb P/ac

ppm

 

 

 

30

15

80

95

115

40

20

55

70

90

50-80

25-40

30

45

65

90

45

15

25

35

100

50

0

0

0

Table 6-14: Examples of Potassium (Expressed as lb K2O/ac) Recommended for Small Grains. 

 

Crop

Yield Goal (bu/ac)

Barley, Spelt

 

50

 

 

70

 

 

90

 

Oats

 

100

 

 

130

 

 

160

 

Rye

 

30

 

 

45

 

 

60

 

 

-------------CEC-------------

-------------CEC-------------

-------------CEC-------------

Soil Test Value

10

20

30

10

20

30

10

20

30

lb K/ac

ppm

-----------------------------Annual  Recommendation  (lb  K2O/ac)----------------------------

50

25

150

190

230

160

195

240

165

255

300

150

75

75

140

225

85

145

235

90

155

240

250

125

40

65

100

45

65

110

50

55

115

350

175

0

0

40

0

0

20

0

0

0

450

225

0

0

20

0

0

0

0

0

0

 

Weed Control for Small Grains 

Specific chemical weed control recommendations can
be found in the Weed Control Guide, Extension Bulletin 789, available at all County Extension offices and online at CFAES publications at: estore.osu-extension.org/.