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Photo of Nitrate regulations in England

Nigel Penlington

Head of Pork Knowledge Exchange

AHDB Pork KE

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Nitrate regulations in England

Home \ Environment & Buildings \ NVZs \ Nitrate regulations in England

Some of the nitrate regulations are aimed at encouraging spreading in the Spring when nitrogen uptake by crops is greater.  The current guidance was amended in November 2013:

Closed periods for spreading organic manures with high available nitrogen, eg pig slurry (but not FYM) Arable Grassland
Sandy or shallow soils: 1 Aug* – 31 Dec 
(*15 Sep where crop sown by this date)
1 Sept – 31 Dec
All other soils: 1 Oct – 31 Jan 15 Oct – 31 Jan

Organic producers may apply organic manures during closed periods up to 150kg N/ha to certain crops.

From the end of a closed period to the end of February only 30 m3/ha of slurry may be applied at any one time and with at least three weeks between applications.

Nitrogen limits Arable and Grassland
Manufactured fertiliser and livestock manure available nitrogen: Must not exceed specified max application rates for specified crops (Nmax)
Livestock manure whole farm limit including grazing deposition 170 kg/ha total N 
(250 kg/ha derogation only for ruminants)
 
Organic manure field limit 250 kg/ha total N 
(typically 36t/ha FYM, 69
m3/ha Slurry.