Manure Application Planning workbook
AE-1187, Revised November 2004
Revised by Ron Wiederholt, Area Extension
Specialist/Livestock Waste
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(110KB)
Useful Manure Management Data
Table 1. Typical nutrient concentration of
animal manures.
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Species/Form N P2O5 K2O
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Beef
Solid-Dirt lot ------ lb/ton ------
- Cows 25 18 22
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Dairy
Solid ------ lb/ton ------
- Cows 11 7 9
Liquid ---- lb/1000 gal ---
- Anaerobic storage 22 14 20
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Swine
Solid ------ lb/ton ------
- Finishing 13 13 9
Liquid ---- lb/1000 gal ---
- Finishing 27 19 15
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Sheepa
Solid ------ lb/ton ------
- Sheep 20 13 27
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Poultry, Turkey
Solid ------ lb/ton ------
- Turkeys 55 63 40
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Source: "Determining Crop Available
Nutrients from Manure." G97-1335A.
Univ. Of Nebraska Cooperative Extension
a North Carolina State University
Table 2. Nitrogen availability by method of application and years
since spreading.
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Broadcast/Incorporation Injection
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< 12 hours < 4 days None Sweep Knife
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------------------- % Total N -------------------
Beef Year 1 60 45 25 60 50
Year 2 25 25 25 25 25
Year 3 10 10 10 10 15
Lost 5 20 40 5 10
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Dairy Year 1 55 40 20 55 50
Year 2 25 25 25 25 25
Year 3 10 15 15 15 15
Lost 10 20 40 5 10
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Swine Year 1 75 55 35 80 70
Year 2 10 10 10 10 10
Year 3 5 5 5 5 5
Lost 10 30 50 5 15
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Poultry Year 1 70 55 45 --- ---
Year 2 15 15 15 --- ---
Year 3 10 10 10 --- ---
Lost 5 20 30 --- ---
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Source: "Manure Management in Minnesota", FO-3553-C. University of Minnesota Extension Service.
Table 3. Phosphorus and potassium
availability in the year of application.
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Nutrient Availability (%)
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P2O5 80
K2O 90
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Source: "Manure Management in Minnesota", FO-3553-C.
University of Minnesota Extension Service.
Table 4. Nutrient removal rates.
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Nutrient Removed
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Crop Unit N P2O5 K2O
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Grain crops --- lb/unit of yield (dry weight) ---
Barley - grain bu (48 lb) 0.87 0.37 0.25
- straw ton 15 5.0 30
Buckwheat - grain bu (48 lb) 0.79 0.34 0.26
- straw ton 16 2.3 54
Corn - grain bu (56 lb) 0.90 0.36 0.27
- stover ton 22 9.0 32
Oats - grain bu (32 lb) 0.62 0.25 0.19
- straw ton 13 7.3 40
Wheat bu (60 lb) 1.25 0.85 0.37
ton 13 3.2 23
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Oil crops --- lb/unit of yield (dry weight) ---
Flax - grain bu (56 lb) 2.3 0.71 0.56
- straw ton 25 5.0 42
Canola - grain bu (50 lb) 1.8 0.90 0.46
- straw ton 90 20 81
Soybeans - grain bu (60 lb) 3.75 0.88 1.37
- stover ton 45 10 25
Sunflower - grain bu (25 lb) 0.89 0.98 0.33
- stover ton 30 8.2 70
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Other crops --- lb/unit of yield (wet weight) ---
Sugar beets ton 4.0 1.4 3.4
- tops ton 8.6 1.8 25
Potatoes ton 6.6 2.7 12
Sweet corn ton 18 11 14
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Silage crops --- lb/unit of yield (dry weight) ---
Alfalfa haylage ton 56 15 56
Corn silage ton 22 11 26
Oat haylage ton 32 13 23
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Forage crops --- lb/unit of yield (dry weight) ---
Alfalfa ton 45 10 45
Big bluestem ton 20 39 42
Bluegrass ton 58 20 47
Bromegrass ton 37 9.6 61
Indiangrass ton 20 39 29
Little bluestem ton 22 9.2 35
Orchardgrass ton 29 9.2 52
Red clover ton 40 10 40
Reed canarygrass ton 27 8.2 NA
Ryegrass ton 33 12 34
Switchgrass ton 23 4.6 46
Timothy ton 24 10 38
Wheatgrass ton 28 12 64
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Source: NRCS Agricultural Waste Management Field Handbook
Table 5. Fertilizer conversion factors.
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To convert from: To: Multiply by:
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P P2O5 2.29
P2O5 P 0.44
K K2O 1.20
K2O K 0.83
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Table 6. Commonly required conversions.
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To convert from: To: Multiply by:
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cubic feet pounds 40 to 55
pounds cubic feet 0.018 to 0.025
cubic feet gallons 7.48
gallons cubic feet 0.134
bushels cubic feet 1.24
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Worksheet 1. Previous manure applications and nitrogen credits.
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worksheet. (4KB pdf file)
Worksheet 2. Fertilizer recommendations and crop requirements.
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worksheet. (4KB pdf file)
Worksheet 3. Determining the manure application rate.
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worksheet. (4KB pdf file)
Worksheet 4. Calculating residual/supplemental nutrient amounts.
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worksheet. (4KB pdf file)
AE-1187, Revised November 2004
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