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Extension > Agriculture > Nutrient Management > Nutrient/Lime Guidelines > Fertilizer Recommendations for Agronomic Crops in Minnesota > Rye

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Fertilizer Recommendations for Agronomic Crops in Minnesota

Rye

Daniel E. Kaiser, Extension Soil Scientist; John A. Lamb, Extension Soil Scientist; and Roger Eliason, Director, University of Minnesota Soil Testing Laboratory

Revised 2011

Although the number of acres planted to this crop is not large, it remains a major component of some farm enterprises in Minnesota. This is a favorite crop used in rotation for those who farm sandy soils that are not irrigated. Fertilizer use is a major factor in attaining profitable yields.

Nitrogen

The majority of this crop is grown on sandy soils. Since the soil test for NO3--N is NOT suggested for use on sandy soils, guidelines for nitrogen use are based on a consideration of expected yield, previous crop, and soil organic matter content. Those guidelines are summarized in Table 1.

Table 1. Nitrogen fertilizer recommendations for rye production.

  Crop Grown Last Year
    Expected Yield (bu./acre)
Organic Matter
Level*
40-49 50-59 60-69 70-79 80 +
  Alfalfa (4+ plants/ft2) Low
Med and high
0
0
0
0

35 
0

60
40

95
75

  Alfalfa (2 to 3 plants/ft2) Low
Med and high
0
0
0
0
40
20
65
45
90
70
  Soybeans
  Alfalfa (1 or less plants/ft2)
Low
Med and high
40
20
65
45
90
70
115
95

140
120

  Edible beans, field peas Low
Med and high
50
30
75
55
100
80
125
105
150
130
  Group 1 Crops Low
Med and high
0
0
35
0
60
40
85
65
110
90
  Group 2 Crops Low
Med and high
60
40

85
65

110
90
135
115
160
140

Crops in Group 1:

Alsike clover, birdsfoot trefoil, grass/legume hay, grass legume pasture, fallow, and red clover.

Crops in Group 2:

Barley, buckwheat, canola, corn, grass hay, grass pasture, oat, potato, rye, sorghum-sudan, sugar beet, sunflower, sweet corn, triticale, and wheat.

The topdress application to established stands in early spring is suggested. There is no need for the use of split applications.

Phosphate and Potash

The guidelines for phosphate use are listed in Table 2. Suggestions for potash use are in Table 3. The suggested rates of phosphate and potash should be broadcast and incorporated before planting.

Table 2. Phosphate guidelines for rye production.

    Phosphorus (P) Soil Test, ppm*
Expected
Yield
Bray: 0-5 6-10 11-15 16-20 21 +
Olsen: 0-3 4-7 8-11 12-15 16 +
lb./acre   — P2O5 to apply (lb./acre) —
40-49   40 30 15 0 0
50-59   50 35 20 0 0
60-69   60 45 20 0 0
70-79   70 50 25 0 0
80 +   80 55 25 0 0

* Use one of the following equations if a phosphate guideline for a specific soil test and a specific expected yield is desired.

P2O5 rec = [1.071 — (0.054) (Bray P, ppm)] (Expected Yield)
P2O5 rec = [1.071 — (0.067) (Olsen P, ppm)] (Expected Yield)

Table 3. Potash guidelines for rye production.

Expected Yield Potassium (K) Soil Test, ppm*
0-40 41-80 81-120 121-160 161 +
lb./acre    
40-49 100 75 45 0 0
50-59 130 95 55 0 0
60-69 155 110 65 0 0
70-79 180 125 75 0 0
80 + 190 135 80 0 0

* Use the following equation if a potash guideline for a specific soil test and a specific expected yield is desired.

K2O rec = [2.710 — (0.017) (Soil Test K, ppm)] (Expected Yield)

Other Nutrients

Use of other nutrients in a fertilizer program has not increased rye yields in Minnesota. Therefore, use of other nutrients is not suggested at this time.

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