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Ty S asked in Home & GardenGarden & Landscape · 1 decade ago

Does anyone know the average nitrogen content difference between manure and compost?

My best guess is that manure has about 5 times more nitrogen than compost per unit of mass, but it is just a guess.

If you can provide a source for your data, it would be much appreciated.

1 Answer

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  • Ranger
    Lv 7
    1 decade ago
    Favorite Answer

    Table 1. (Typical)

    Nitrogen Phosphorus Potassium Calcium Magnesium Organic matter Moisture content

    (N) (P2O5) (K2O) (Ca) (Mg)

    FRESH MANURE % % % % % % %

    Cattle 0.5 0.3 0.5 0.3 0.1 16.7 81.3

    Sheep 0.9 0.5 0.8 0.2 0.3 30.7 64.8

    Poultry 0.9 0.5 0.8 0.4 02 30.7 64.8

    Horse 0.5 0.3 0.6 0.3 0.12 7.0 68.8

    Swine 0.6 0.5 0.4 0.2 0.03 15.5 77.6

    TREATED

    DRIED MANURE % % % % % % %

    Cattle 2.0 1.5 2.2 2.9 0.7 69.9 7.9

    Sheep 1.9 1.4 2.9 3.3 0.8 53.9 11.4

    Poultry 4.5 2.7 1.4 2.9 0.6 58.6 9.2

    Table 1. Typical ranges of test parameters in quality compost (17).

    Test Parameter Range pH 6.8-7.3

    Soluble Salts 0.35-0.64 dS/m (mmhos/cm) (1:5 v/v method)

    Nitrogen 1.0-2.0%

    Phosphorus 0.6-0.9%

    Potassium 0.2-0.5%

    Moisture Content 45-50%

    Organic Matter 35-45%

    Particle Size passes 3/8" screen

    Bulk Density 900-1,000 lbs/yd3

    Source(s): Googled your question. This popped up as the first response.
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