OpenLegislation

Schedule 2 Criteria for nutrient management

Northern Ireland

Table 1a

Regulations 9 and 20 – Nitrogen (N) and phosphorus (P) excretion rates for grazing livestock

Livestock typeNitrogen (N) produced per head per year(kg N/yr)Phosphorus (P) produced per head per year(kg P/yr)
Cattle
Dairy cow10019
Dairy heifer (over 2 years)458.3
Dairy heifer (1 – 2 years)397.2
Beef suckler cow (over 2 years)529.6
Bull kept wholly or mainly for breeding529.6
Cattle (over 2 years)458.3
Cattle ( 1 – 2 years)397.2
Bull beef (0 – 13 months)307.5
Bull beef (6 – 13 months)235.8
Calf (0 – 1 year)194.7
Calf (0 – 6 months)7.01.7
Calf (6 – 12 months)123.0
Sheep
Ewe (over 1 year)9.01.0
Ram (over 1 year)9.01.0
Lamb (0 – 6 months)1.20.3
Lamb (6 – 12 months)3.20.3
Lamb (0 – 1 year)4.40.6
Deer
Deer (red) 6 months – 2 years122.0
Deer (red) over 2 years154.0
Deer (fallow) 6 months – 2 years7.01.0
Deer (fallow) over 2 years132.0
Deer (sika) 6 months – 2 years6.01.0
Deer (sika) over 2 years102.0
Horses
Horse (over 3 years)509.0
Horse ( 2 – 3 years)448.0
Horse (1 - 2 years)366.0
Horse (under 1 year)253.0
Donkey or small pony305.0
Goats
Milking goats151.7
Non milking goat9.01.0
Kid (0 – 1 year)4.40.6
Kid (6 – 12 months)3.20.3
Kid (0 – 6 months)1.20.3

Table 1b

Regulation 9 – Nitrogen and phosphorus (P) excretion rates for pigs

1 Breeding sows includes served gilts, dry and lactating sows and piglets to weaning.

Livestock typeNitrogen (N) produced per head per year (kg N/yr)Phosphorus (P) produced per head per year (kg P/yr)
Adults pigs
Boar184.2
Maiden gilt115.7
Breeding sow1168.7

Nitrogen (N) produced per pig

(kg N)

Phosphorus (P) produced per pig

(kg P)

Pigs weaned at 3 – 4 weeks
Approximate start weight (kg)Approximate sale or transfer weight (kg)
6 – 818 (7.5 weeks)0.090.08
6 – 835 (11 weeks)0.380.23
6 – 8105 (23 weeks)2.381.09
Growing and finishing pigs
Approximate start weight (kg)Approximate sale or transfer weight (kg)
18350.290.15
181052.301.00
351052.000.85

Table 1c

Regulation 9 – Nitrogen (N) and phosphorus (P) excretion rates for poultry

1 Male and female turkeys

Livestock typeNitrogen (N) produced per 1000 birds per crop(kg N)Phosphorus (P) produced per 1000 birds per crop(kg P)
Broilers – hot water heating33.87.0
Conventional broilers408.4
Free range broilers44.911.4
Turkeys1 0 – 6 weeks22955
Turkeys1 6 weeks – kill30573.8
Turkeys1 0 – kill534129
Fattening ducks13965
Livestock typeNitrogen (N) produced per 1000 birds per crop(kg N)Phosphorus (P) produced per 1000 birds per crop(kg P)
Broilers – hot water heating33.87.0
Broiler breeders 0 – 18 weeks2.92.0
Broiler breeders 18 – 60 weeks7.23.9
Broiler breeders 0 – 60 weeks5.93.3
Pullets4.71.7
Layers124.6
Free range laying hens5.42.2

Table 2

Regulations 3, 9 and 13 – Total nitrogen (N) and phosphorus (P) contents of fertilisers and proportion of total phosphorus to total nitrogen (all on a fresh weight basis)

1 Figures in bold are the most common values.

2 For calculation purposes assume 1m3 of slurry weighs 1 tonne

Liquid / slurry manure typesDry matter content (%)Total Nitrogen (N) content by volume(kg N/m3)12Total phosphorus (P) content by volume(kg P/m3)12Proportion of total phosphorus to total nitrogen
Liquids
Dirty water0.50.50.040.08
Cattle slurries
Cattle slurry21.60.260.16
62.60.520.20
103.60.790.22
Separated cattle slurries (liquid portion)
Strainer box1.51.50.130.09
Weeping wall32.00.220.11
Mechanical Separator43.00.520.17
Pig slurries
Pig slurry23.00.350.12
43.60.650.18
64.40.960.22
Separated pig slurry (liquid portion)33.60.480.13
Solid manure typeDry matter content (%)Total nitrogen content by weight(kg N/t)Total phosphorus content by weight(kg P/t)Proportion of total phosphorus to total nitrogen
Poultry manures
Broiler – hot water heating7233.87.00.21
Free range broilers 0 – kill5726.46.70.25
Broiler breeders 0 – 18 weeks5517.511.80.67
Broiler breeders 18 – 60 weeks6020.711.00.53
Broiler breeders 0 – 60 weeks5920.211.20.56
Conventional broiler66337.00.21
Turkeys 0 – 6 weeks5824.86.00.24
Turkeys 6 – kill5824.86.00.24
Turkeys 0 – kill5824.86.00.24
Pullets7232.712.00.37
Layer30165.70.36
Free range laying hens4618.87.50.40
Duck256.52.40.37
Farmyard manures
Cattle manures256.01.40.23
Sheep manures257.01.40.20
Goat manures409.52.00.21
Pig manures257.02.60.37
Horse manures255.02.20.44
Miscellaneous manures
Spent mushroom compost358.01.50.19
Separated cattle slurry (solid portion)204.00.870.22
Separated pig slurry (solid portion)205.01.600.32
Other organic manuresDry matter content, total nitrogen content and total phosphorus content to be declared in accordance with the Waste Regulations. Proportion of phosphorus to total nitrogen to be calculated from these analyses.
Chemical fertiliserDry matter content, total nitrogen content and total phosphorus content as certified by the producers. Proportion of total phosphorus to total nitrogen to be calculated from these analyses.

Table 3

Regulation 9 – Nitrogen availability in organic manures and chemical fertilisers

FertiliserNitrogen availability (%)
Chemical100
Pig slurry50
Poultry litter30
Farmyard manure30
Cattle slurry40
Spent mushroom compost20
Other organic manures40

Table 4

Regulation 10 – Nitrogen application standards for grassland crops

1 This table does not imply any departure from regulation 9(1) which prohibits the application to the agricultural area on a holding of livestock manure in amounts which exceeds 170 kg N/ha/yr, including that deposited by the animals themselves.

2 The dairy cattle figures (dairy cows and heifer replacements) apply where it can be demonstrated that more than 50% of the livestock manure applied to the agricultural area, both by land application and by the animals themselves, arises from dairy cattle. In all other cases the figures for other livestock will apply.

Dairy Cattle2Other livestock2
Balance of crop nitrogen requirement (kg N/ha/yr) (e.g. from chemical fertiliser or organic nitrogen supply other than livestock manure)1272222

Table 5

Regulation 11 – Maximum permitted nitrogen application and standard yields for cereal crops

1 For all crops in the table, an additional 20 kg N/ha is permitted for every tonne that the expected yield exceeds the standard yield. Evidence of this must be demonstrated by overall farm crop yield in any of the previous three years.

Crop typeMaximum permitted nitrogen (kg N/ha)1Standard yield (t/ha)
Winter Wheat2208.0
Spring Wheat1807.0
Winter Barley1707.0
Spring Barley1405.0
Winter Oats1406.0
Spring Oats1105.0

Table 6

Regulation 20 – Livestock manure production figures

1 The standard figures for slurry produced by animals do not include water for cleaning buildings.

Livestock typeVolume of excreta produced per animal per week (m3)1
Cattle
Diary cow0.37
Suckler cow0.23
Cattle (over 2 years)0.23
Cattle (1 – 2 years)0.18
Calf (6 -12 months)0.09
Calf (0 – 6 months)0.05
Sheep
Adult ewe or ram0.03
Fattening lamb (6 – 12 months)0.01
Adult pigs
Maiden gilt or boar0.05
Dry or lactating sows and served gilts0.08
Pigs weaned at 3 – 4 weeks
Approximate start weight (kg)Approximate sale or transfer weight (kg)
6 – 818 (7.5 weeks)0.01
6 – 835 (11 weeks)0.03
6 – 8105 (23 weeks) (Meal fed)0.06
6 – 8105 (23 weeks) (Liquid fed)0.08
Growing and finishing pigs
Approximate stat weight (kg)Approximate sale or transfer weight (kg)
18350.02
35105 (Meal fed)0.03
35105 (Liquid fed)0.05
Poultry
1000 laying hens0.81
  1. 1Criteria as to calculation of phosphorus balance