ARCHIVE: Entry Level Stewardship Handbook 2005 (PB10355)

Appendix 2 - Guidance for calculating nitrogen content of manures


The table below may help you establish the nitrogen content of manures applied under the rush pasture and low input grassland options (EK2, EK3, EK4, EL2, EL3, EL4).

Typical total nitrogen contents of livestock manures:

Manure type Total nitrogen content Application rate to supply 100 kg/ha total nitrogen
Cattle farmyard manure 6.0 kg/t 16 t/ha
Pig farmyard manure 7 .0 kg/t 14 t/ha
Dairy cattle slurry (6% dry matter) 3.0 kg/m3 33 m3/ha
Beef cattle slurry (6% dry matter) 2.3 kg/m3 43 m3/ha
Pig slurry (4% dry matter) 4.0 kg/m3 25 m3/ha

 

These typical nitrogen contents are based upon analyses of a large number of samples and are useful for general planning purposes. The nitrogen content of manures can be variable and analysis of individual samples will provide more reliable information. Dry matter content will affect the nitrogen content of slurries. For full details on the nutrient content of manures see ‘Fertiliser Recommendations for Agricultural and Horticultural Crops’ (MAFF, RB209, Seventh edition 2000, available from The Stationery Office).

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