{
  "url": "https://openlegislation.uk/action-programme-for-nitrate-vulnerable-zones-scotland-regulations-2008/schedule-3",
  "json_url": "https://openlegislation.uk/action-programme-for-nitrate-vulnerable-zones-scotland-regulations-2008/schedule-3.json",
  "legislation": "ssi/2008/298",
  "legislation_title": "The Action Programme for Nitrate Vulnerable Zones (Scotland) Regulations 2008",
  "legislation_url": "https://openlegislation.uk/action-programme-for-nitrate-vulnerable-zones-scotland-regulations-2008",
  "path": "schedule/3",
  "kind": "schedule",
  "number": "3",
  "heading": "Calculation of maximum nitrogen application to crops",
  "text": "Table 1\nNitrogen Residue Group 1 – Previous Crops in Nitrogen Residue Group 1 are: cereals, carrots, swedes, turnips (removed) & linseed\nPredominant Soil Type in Field\nPlanned crop\nStandard yield (t/ha)\nSand or shallow\nSandy loam or other mineral\nHumose\nPeaty\nAdjustments\n(a)For wheat, an additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(b)For wheat, an additional 40kgN/ha is permitted to milling wheat varieties.\n(c)For barley and oats, an additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(d)On winter oil seed rape, the spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.\n(e)On spring barley, an additional 15kgN/ha is permitted for high N grain distilling varieties.\nThere is no upward adjustment for excess winter rainfall on N Residue Group 1 Crops\nSpring Barley (c)(e)\n5.5\n150\n130\n80\n50\nWinter Barley (c)\n6.5\n200\n180\n120\n80\nSpring Wheat (a)(b)\n7.0\n170\n150\n100\n60\nWinter Wheat (a)(b)\n8.0\n220\n200\n140\n80\nSpring Oats (c)\n5.0\n120\n100\n50\n20\nWinter Oats (c)\n6.0\n160\n140\n90\n50\nSpring Oilseed Rape\nn/a\n100\n100\n50\n20\nWinter Oilseed Rape (spring) (d)\n4.0\n200\n200\n120\n80\nWinter Oilseed Rape (autumn)\nn/a\n30\n30\n30\n30\nPotatoes\nn/a\n245\n225\n175\n145\nForage Maize, Rape\nn/a\n140\n120\n70\n40\nKale\nn/a\n180\n160\n100\n60\nSwedes and Turnips\nn/a\n110\n90\n50\n20\nLinseed\nn/a\n80\n60\n30\n0\nNitrogen Residue Group 2 - Previous Crops in Nitrogen Residue Group 2 are: - harvested fodder (whole crop), oilseed rape, hemp, vining peas & potatoes\n(1) low N means average N use in last 2 years was less than 150kg/ha/year\nGrassland Management Regimes in Residue Group 2: - 1-2 year low N leys(1), not grazed within 2 months of ploughing out or during September or October\nPredominant Soil Type in Field\nPlanned crop\nStandard yield\n(t/ha)\nSand or shallow\nSandy loam or\nOther mineral\nHumose\nPeaty\n(a)For wheat, an additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(b)For wheat, an additional 40kgN/ha is permitted to milling wheat varieties.\n(c)For barley and oats, an additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(d)On winter oil seed rape, the spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.\n(e)On spring barley, an additional 15kgN/ha is permitted for high N grain distilling varieties.\nIf actual localised rainfall from 1st Oct – 1st March exceeds 450 mm: add 10kgN/ha\nSpring Barley (c) (e)\n5.5\n140\n120\n70\n40\nWinter Barley (c)\n6.5\n190\n170\n110\n70\nSpring Wheat (a) (b)\n7.0\n160\n140\n90\n50\nWinter Wheat (a) (b)\n8.0\n210\n190\n130\n70\nSpring Oats (c)\n5.0\n110\n90\n40\n10\nWinter Oats (c)\n6.0\n150\n130\n80\n40\nSpring Oilseed Rape\nn/a\n90\n90\n40\n10\nWinter Oilseed Rape (spring) (d)\n4.0\n190\n190\n110\n70\nWinter Oilseed Rape (autumn)\nn/a\n20\n20\n20\n20\nPotatoes\nn/a\n235\n215\n165\n135\nForage Maize, Rape\nn/a\n130\n110\n60\n30\nKale\nn/a\n170\n150\n90\n50\nSwedes and Turnips\nn/a\n100\n80\n40\n10\nLinseed\nn/a\n70\n50\n20\n0\nAdjustments\nNitrogen Residue Group 3 - Previous Crops in Nitrogen Residue Group 3 are: - harvested fodder (root only), beans, combining peas & whole crop lupins\n(2) high N means average N use in last 2 years was more than 150kg/ha/year, or high clover\nGrassland Management Regimes in Residue Group 3:\n1-2 year low N leys, grazed within 2 months of ploughing out or during September or October\n1-2 year high N leys, not grazed within 2 months of ploughing out or during September or October\nThin permanent grass, low N, no clover\nPredominant Soil Type in Field\nPlanned crop\nStandard yield\n(t/ha)\nSand or shallow\nSandy loam or other mineral\nHumose\nPeaty\nAdjustments\n(a)For wheat, an additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(b)For wheat, an additional 40kgN/ha is permitted to milling wheat varieties.\n(c)For barley and oats, an additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(d)On winter oil seed rape, the spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.\n(e)On spring barley, an additional 15kgN/ha is permitted for high N grain distilling varieties.\nIf actual local rainfall from 1st Oct – 1st March exceeds 450 mm:\nadd 20kgN/ha to crops grown in sandy, shallow or sandy loam soils\nadd 10kgN/ha to crops grown in other mineral, humose and peaty soils\nSpring Barley (c)(e)\n5.5\n130\n110\n60\n30\nWinter Barley (c)\n6.5\n180\n160\n100\n60\nSpring Wheat (a)(b)\n7.0\n150\n130\n80\n40\nWinter Wheat (a)(b)\n8.0\n200\n180\n120\n60\nSpring Oats (c)\n5.0\n100\n80\n30\n0\nWinter Oats (c)\n6.0\n140\n120\n70\n30\nSpring Oilseed Rape\nn/a\n80\n80\n30\n0\nWinter Oilseed Rape (spring) (d)\n4.0\n180\n180\n100\n60\nWinter Oilseed Rape (autumn)\nn/a\n10\n10\n10\n10\nPotatoes\nn/a\n225\n205\n155\n125\nForage Maize, Rape\nn/a\n120\n100\n50\n20\nKale\nn/a\n160\n140\n80\n40\nSwedes and Turnips\nn/a\n90\n70\n30\n0\nLinseed\nn/a\n60\n40\n10\n0\nNitrogen Residue Group 4 - Previous Crops in Nitrogen Residue Group 4 is: - grain lupin\nGrassland Management Regimes in Residue Group 4:\n-\n1-2 year high N leys, grazed within 2 months of ploughing out or during September or October\n-\n3-5 year low N leys², not grazed within 2 months of ploughing out or during September or October\n-\nThick permanent grass, low N\nPredominant Soil Type in Field\nPlanned crop\nStandard yield\n(t/ha)\nSand or shallow\nSandy loam or other mineral\nHumose\nPeaty\nAdjustments\n(a)For wheat, an additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(b)For wheat, an additional 40kgN/ha is permitted to milling wheat varieties.\n(c)For barley and oats, an additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(d)On winter oil seed rape, the spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.\n(e)On spring barley, an additional 15kgN/ha is permitted for high N grain distilling varieties.\nIf actual local rainfall from 1st Oct – 1st March exceeds 450 mm:\nadd 20kgN/ha to crops grown in sandy, shallow or sandy loam soils\nadd 10kgN/ha to crops grown in other mineral, humose and peaty soils\nSpring Barley (c)(e)\n5.5\n110\n90\n40\n10\nWinter Barley (c)\n6.5\n170\n140\n80\n40\nSpring Wheat (a)(b)\n7.0\n130\n110\n60\n20\nWinter Wheat (a)(b)\n8.0\n180\n160\n100\n40\nSpring Oats (c)\n5.0\n80\n60\n10\n0\nWinter Oats (c)\n6.0\n130\n100\n50\n10\nSpring Oilseed Rape\nn/a\n60\n60\n10\n0\nWinter Oilseed Rape (spring) (d)\n4.0\n140\n140\n80\n40\nWinter Oilseed Rape (autumn)\nn/a\n0\n0\n0\n0\nPotatoes\nn/a\n205\n185\n145\n115\nForage Maize, Rape\nn/a\n100\n80\n30\n0\nKale\nn/a\n140\n120\n60\n20\nSwedes and Turnips\nn/a\n80\n60\n20\n0\nLinseed\nn/a\n10\n0\n0\n0\nNitrogen Residue Group 5 - Previous Crops in Nitrogen Residue Group 5 are: - leafy brassica vegetables, leafy non-brassica vegetables & grazed fodder\nGrassland Management Regimes in Residue Group 5:\n-\n3 - 5 year high N leys, not grazed within 2 months of ploughing out or during September or October\n-\n3 - 5 year low N leys, grazed within 2 months of ploughing out or during September or October\n-\nPermanent grass, high N, not grazed within 2 months of ploughing out or during September or October\nPredominant Soil Type in Field\nPlanned crop\nStandard yield\n(t/ha)\nSand or shallow\nSandy loam or other mineral\nHumose\nPeaty\nAdjustments\n(a)For wheat, an additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(b)For wheat, an additional 40kgN/ha is permitted to milling wheat varieties.\n(c)For barley and oats, an additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(d)On winter oil seed rape, the spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.\n(e)On spring barley, an additional 15kgN/ha is permitted for high N grain distilling varieties.\nIf actual local rainfall from 1st Oct – 1st March exceeds 450 mm:\nadd 20kgN/ha to crops grown in sandy, shallow or sandy loam soils\nadd 10kgN/ha to crops grown in other mineral, humose and peaty soils\nSpring Barley (c)(e)\n5.5\n80\n60\n10\n0\nWinter Barley (c)\n6.5\n140\n110\n50\n10\nSpring Wheat (a)(b)\n7.0\n100\n80\n30\n0\nWinter Wheat (a)(b)\n8.0\n150\n130\n70\n10\nSpring Oats (c)\n5.0\n50\n30\n0\n0\nWinter Oats (c)\n6.0\n100\n70\n20\n0\nSpring Oilseed Rape\nn/a\n30\n30\n0\n0\nWinter Oilseed Rape (spring) (d)\n4.0\n110\n110\n50\n0\nWinter Oilseed Rape (autumn)\nn/a\n0\n0\n0\n0\nPotatoes\nn/a\n175\n155\n135\n105\nForage Maize, Rape\nn/a\n70\n50\n0\n0\nKale\nn/a\n110\n90\n30\n0\nSwedes and Turnips\nn/a\n70\n50\n10\n0\nLinseed\nn/a\n10\n0\n0\n0\nNitrogen Residue Group 6\nManagement Regimes in Residue Group 6:\n-\n3 -5 year high N leys, grazed within 2 months of ploughing out\n-\npermanent grass, high N, grazed within 2 months of ploughing out\nPredominant Soil Type in Field\nPlanned crop\nStandard yield\n(t/ha)\nSand or shallow\nSandy loam or other mineral\nHumose\nPeaty\nAdjustments\n(a)For wheat, an additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(b)For wheat, an additional 40kgN/ha is permitted to milling wheat varieties.\n(c)For barley and oats, an additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.\n(d)On winter oil seed rape, the spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.\n(e)On spring barley, an additional 15kgN/ha is permitted for high N grain distilling varieties.\nIf actual local rainfall from 1 Oct – 1 March exceeds 450 mm:\nadd 20kgN/ha to crops grown in sandy, shallow or sandy loam soils\nadd 10kgN/ha to crops grown in other mineral, humose and peaty soils\nSpring Barley (c)(e)\n5.5\n40\n20\n0\n0\nWinter Barley (c)\n6.5\n100\n70\n10\n0\nSpring Wheat (a)(b)\n7.0\n70\n0\n0\n0\nWinter Wheat (a)(b)\n8.0\n110\n90\n30\n0\nSpring Oats (c)\n5.0\n10\n0\n0\n0\nWinter Oats (c)\n6.0\n60\n30\n0\n0\nSpring Oilseed Rape\nn/a\n0\n0\n0\n0\nWinter Oilseed Rape (spring) (d)\n4.0\n70\n70\n10\n0\nWinter Oilseed Rape (autumn)\nn/a\n0\n0\n0\n0\nPotatoes\nn/a\n135\n115\n115\n115\nForage Maize, Rape\nn/a\n30\n10\n0\n0\nKale\nn/a\n70\n50\n0\n0\nSwedes and Turnips\nn/a\n50\n30\n0\n0\nLinseed\nn/a\n0\n0\n0\n0\nTable 2\nSite Classes– Applicable to grassland\nGrassland production is limited by growing conditions, in particular the quantity of rainfall between April and September and soil type. The combined effect of these factors defines the site class.\nAverage April – September rainfall mm (inches)\nSoil texture\nMore than 500\n425–500\n350–425\nLess than 350\n(20)\n(17–20)\n(14–17)\n(14)\nSands and shallow soils\n2\n3\n4\n5\nAll other soils\n1\n2\n2\n3\nTable 3\nMaximum nitrogen application to grassland\nSite\nSite\nSite\nSite\nSite\nGrass management\nClass 1\nClass 2\nClass 3\nClass 4\nClass 5\nkgN/ha\nkgN/ha\nkgN/ha\nkgN/ha\nkgN/ha\n2 or 3 cut silage and grazing\n310\n300\n290\n280\n270\n1 cut silage and grazing\n280\n270\n260\n250\n240\nGrazing with low clover\n270\n260\n250\n240\n230\nHay and grazing\n220\n210\n200\n190\n180\nGrass with high clover\n100\n90\n80\n70\n60\nTable 4\nPercentage of Nitrogen available to next crop\nPART A—Farmyard manure (FYM) – Percentage of nitrogen available to next crop following FYM applications (all crops and all soil types).\nFYM type\nManure Reference Number\nTotal N (kg/t)\nDry Matter %\n% N available to following crop\nCattle FYM\n1\n6\n25\n10\nSeparated solids from cattle slurry\n2\n4\n20\n10\nPig FYM\n3\n7\n25\n10\nSeparated solids from pig slurry\n4\n5\n20\n10\nSheep FYM\n5\n7\n25\n10\nDuck FYM\n6\n6.5\n25\n10\nHorse FYM\n7\n7\n30\n10\nPART B—Poultry manure – Percentage of nitrogen available to next crop following Poultry Manure applications (use the value in brackets for grassland and winter oilseed rape cropping).\n*These values assume incorporation by ploughing. Cultivation using discs or tines is likely to be less effective in minimising ammonia losses and intermediate values of nitrogen availability should be used.\nAutumn\nWinter\nSpring\nSummer use on Grassland\nAugust–October\nNovember–January\nFebruary–April\nManure Type\nManure Reference Number\nIncorporation time*\nTotal N (kg/t)\nDry Matter %\nSands Sandy Loams Shallow\nAll other soils\nSands Sandy Loams Shallow\nAll other soils\nAll Soils\nAll Soils\nLayer manure\n8\nOver 24 hrs\n19\n35\n20\n25 (30)\n25\n25\n35\n35\nLayer manure\n9\nWithin 24 hrs\n19\n35\n20\n25 (30)\n25\n40\n50\nN/A\nBroiler/Turkey litter\n10\nOver 24 hrs\n30\n60\n20\n35 (40)\n20\n25\n30\n30\nBroiler/Turkey litter\n11\nWithin 24 hrs\n30\n60\n20\n30 (35)\n20\n30\n40\nN/A\nPART C—Cattle, Dirty Water and Pig Slurry – Percentage of nitrogen available to next crop following Cattle Slurry, Dirty Water and Pig Slurry applications (use the value in brackets for grassland and winter oilseed rape cropping).\nAutumn\nWinter\nSpring\nSummer use on Grassland\nAugust-October\nNovember-January\nFeb - April\nManure Type\nDry\nMatter\n%\nRef\nNo.\nIncorporation time/method\nTotal N\n(kg/t)\nSands\nSandy Loams\nShallow\nAll other soils\nSands\nSandy Loams\nShallow\nAll other soils\nAll\nSoils\nCattle slurry – Surface applied\n2\n12\nNot incorporated\n1.6\n20\n30 (35)\n30\n30\n45\n30\nCattle slurry – Surface applied\n6\n13\nNot incorporated\n2.6\n20\n25 (30)\n25\n25\n35\n25\nCattle slurry – Surface applied\n10\n14\nNot incorporated\n3.6\n20\n20 (25)\n20\n20\n25\n20\nCattle slurry – ploughed in\n2\n15\nWithin 6 hrs\n1.6\n20\n35 (40)\n30\n35\n50\nN/A\nCattle slurry – ploughed in\n6\n16\nWithin 6 hrs\n2.6\n20\n30 (35)\n25\n30\n40\nN/A\nCattle slurry – ploughed in\n10\n17\nWithin 6 hrs\n3.6\n20\n25 (30)\n20\n25\n30\nN/A\nCattle slurry – Band-spread\n2\n18\nBand-spread\n1.6\n20\n30 (35)\n30\n30\n50\n40\nCattle slurry – Band-spread\n6\n19\nBand-spread\n2.6\n20\n25 (30)\n25\n25\n40\n30\nCattle slurry – Band-spread\n10\n20\nBand-spread\n3.6\n20\n20 (25)\n20\n20\n30\n25\nCattle slurry – shallow injected\n2\n21\nShallow injected\n1.6\n20\n30 (35)\n35\n35\n55\n45\nCattle slurry – shallow injected\n6\n22\nShallow injected\n2.6\n20\n25 (30)\n30\n30\n45\n35\nCattle slurry – shallow injected\n10\n23\nShallow injected\n3.6\n20\n20 (25)\n25\n25\n35\n30\nSeparated – Strainer box\n*\n24\nSelect from above\n1.5\n*Use the appropriate values for 2% dry matter cattle slurry\nSeparated – Weeping wall\n*\n25\n2\nSeparated – Mechanical\n*\n26\n3\nDirty Water\n0.5\n27\nNot incorporated\n0.5\n20\n35 (40)\n35\n35\n50\n30\nPig slurry – surface applied\n2\n28\nNot incorporated\n3.0\n25\n35 (40)\n40\n40\n55\n55\nPig slurry – surface applied\n4\n29\nNot incorporated\n3.6\n25\n30 (35)\n35\n35\n50\n50\nPig slurry – surface applied\n6\n30\nNot incorporated\n4.4\n25\n25 (30)\n30\n30\n45\n45\nPig slurry – ploughed in\n2\n31\nWithin 6 hrs\n3.0\n25\n45 (50)\n35\n50\n65\nN/A\nPig slurry – ploughed in\n4\n32\nWithin 6 hrs\n3.6\n25\n40 (45)\n30\n45\n60\nN/A\nPig slurry – ploughed in\n6\n33\nWithin 6 hrs\n4.4\n25\n40 (45)\n30\n40\n55\nN/A\nPig slurry – Band-spread\n2\n34\nBand-spread\n3.0\n25\n35 (40)\n40\n40\n60\n60\nPig slurry – Band-spread\n4\n35\nBand-spread\n3.6\n25\n35 (40)\n35\n35\n55\n55\nPig slurry – Band-spread\n6\n36\nBand-spread\n4.4\n25\n30 (35)\n35\n35\n50\n50\nPig slurry - shallow injected\n2\n37\nShallow injected\n3.0\n25\n40 (45)\n45\n45\n65\n65\nPig slurry - shallow injected\n4\n38\nShallow injected\n3.6\n25\n35 (40)\n40\n40\n60\n60\nPig slurry - shallow injected\n6\n39\nShallow injected\n4.4\n25\n35 (40)\n40\n40\n55\n55\nMechanical separator\n**\n40\nSelect from above\n3.6\n**Use the appropriate value for 2% dry matter pig slurry\nTable 5\nPercentage nitrogen content taken up by a crop per given quantity of livestock manure\nColumn 1\nColumn 2\nColumn 3\nType of livestock manure\nPercentage content of nitrogen taken up by crop until and including 31 December 2011\nPercentage content of nitrogen taken up by crop on and from 1st January 2012\nCattle slurry\n20%\n40%\nPig slurry\n25%\n50%\nPoultry manure or litter\n20%\n30%\nSolid manure\n10%\n10%",
  "extent": "S",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Sch. 3 Table 1 substituted (24.1.2010) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2009 (S.S.I. 2009/447), regs. 1, 9(2)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Sch. 3 Table 4 Pt. C substituted (24.1.2010) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2009 (S.S.I. 2009/447), regs. 1, 9(3)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Word in Sch. 3 Table 5 substituted (1.1.2014) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2013 (S.S.I. 2013/123), regs. 1(3), 11(2)"
    },
    {
      "type": "F",
      "label": "F4",
      "text": "Word in Sch. 3 Table 5 substituted (1.1.2014) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2013 (S.S.I. 2013/123), regs. 1(3), 11(3)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ssi/2008/298/schedule/3",
    "retrieved_at": "2026-10-28T22:05:38.352701+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}