The Potash Development Association
Table 1 Typical nutrient content of animal manures
  DM Total Nutrients Available Nutrients (1)
  % Nitrogen Phosphate Potash Nitrogen Phosphate Potash
Fresh FYM (2)     kg/t     kg/t  
Cattle 25 6.0 3.5 8.0 see Table 2 2.1 7.2
Pig 25 7.0 7.0 5.0 4.2 4.5
Poultry Manures     kg/t     kg/t  
Layer manure 30 16.0 13.0 9.0 see Table 2 7.8 8.1
Broiler/turkey litter 60 30.0 25.0 18.0 15.0 16.0
Slurries     kg/m3     kg/m3  
Dairy (3) 6 3.0 1.2 3.5 see Table 2 0.6 3.2
Beef (3) 6 2.3 1.2 2.7 0.6 2.4
Pig (3) 4 4.0 2.0 2.5 1.0 2.3
Separated cattle slurries (liquid)     kg/m3     kg/m3  
Strainer box 1.5 1.5 0.3 2.2 see Table 2 0.15 2.0
Weeping wall 3 2.0 0.5 3.0 0.25 2.7
Mechanical separator 4 3.0 1.2 3.5 0.60 3.2

(1) Nutrients that are available to the next crop
(2) Nitrogen and potash values will be lower if FYM is stored in the open or for long periods
(3) Adjust nutrient content if % DM is higher or lower

Imperial Conversions

Multiply kg/m3 by 9 to give units/1000 gals
Multiply kg/t by 2 to give units/ton

Table 2 Percentage of total nitrogen available to the next crop
following applications of animal manures (% of total nitrogen)
Timing   Autumn   Winter   Spring Summer use
on grassland
    (Aug-Oct)   (Nov-Jan)   (Feb-Apr)
Soil type DM(%) Sandy/shallow Medium/heavy Sandy/shallow Medium/heavy All soils All soils
Surface application        
Fresh FYM 25 5 10 10 15 20 n/a
Layer manure 30 10 20 15 30 35 n/a
Broiler/turkey litter 60 10 20 15 25 30 n/a
Dairy/beef slurries 6 5 15 20 30 35 20
Pig slurries 4 5 20 25 40 50 30
Separated slurries 1-4 5 20 25 40 50 35
Soil incorporation        
Fresh FYM 25 5 10 15 20 25 n/a
Layer manure 30 10 25 20 40 50 n/a
Broiler/turkey litter 60 10 25 20 40 45 n/a
Dairy/beef slurries 6 5 20 20 35 45 n/a
Pig slurry 4 5 20 20 45 55 n/a
Separated slurries 1-4 5 20 25 45 55 n/a

Source:- MAFF Fertiliser Recommendations for Agricultural & Horticultural Crops (RB209) seventh edition
Available from:- The Stationery Office, Publications Centre. Tel: 0870 600 5522

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Revised July 2005