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NUTRIENT COMPOSITION OF COMMON MATERIALS Material Nitrogen % Phosphorus % Potassium % Comments
Chicken Manure (fresh) 1.6 1.5 0.9 Compost, or delay planting at least 3 wks.
Cow Manure (fresh) 0.3 0.2 0.1 Compost, or delay planting at least 3 wks.
Horse Manure (fresh) 0.7 0.3 0.6 Compost, or delay planting at least 3 wks.
Pig Manure (fresh) 0.5 0.3 0.5 Compost, or delay planting at least 3 wks.
Rabbit Manure (fresh) 2.4 1.4 0.6 Compost, or delay planting at least 3 wks.
Sheep Manure (fresh) 0.7 0.3 0.9 Compost, or delay planting at least 3 wks.
Worm Castings 0.5 0.5 0.3 High in organic matter. Already Composted
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Table 2: Approximate composition of organic fertilizers.*
Fertilizer Percent composition
N P2O5 K2O
Cow manure 0.5-2.0 0.2-0.9 0.5-1.5
Horse manure 0.5-2.5 0.3-2.5 0.5-3.0
Sheep manure 1.0-4.0 1.0-2.5 1.0-3.0
Rabbit manure, dry 2.3 1.4 0.8
Poultry manure 1.1-6.0 0.5-4.0 0.5-3.0
Dried blood 12.0-14.5 0.4-1.5 0.6
Hog manure 0.3-0.5 0.2-0.4 0.4-0.5
*Actual percent composition depends upon moisture content, bedding and/or litter materials