{
  "url": "https://openlegislation.uk/fertilisers-regulations-1991/schedule-2/paragraph-9",
  "json_url": "https://openlegislation.uk/fertilisers-regulations-1991/schedule-2/paragraph-9.json",
  "legislation": "uksi/1991/2197",
  "legislation_title": "The Fertilisers Regulations 1991",
  "legislation_url": "https://openlegislation.uk/fertilisers-regulations-1991",
  "path": "schedule/2/paragraph/9",
  "kind": "paragraph",
  "number": "9",
  "heading": null,
  "text": "In the case of fluid fertilisers, additional information on the fertilising components may be expressed in equivalent terms of weight versus volume (kilograms per hectolitre or grams per litre). In the case of fluid fertilisers which are for foliage spraying, the soluble calcium content may be declared if it is not less than 8% calcium oxide (5.7% calcium).\nTABLE 1\n(a). MINIMUM TRACE ELEMENT CONTENT (PERCENTAGE WEIGHT OF FERTILISER)\n1. Applied to the soil\n2. Leaf Spray\na) Crops or grassland\nb) Horticultural use\nBoron (B)\n0.01\n0.01\n0.01\nCobalt (Co)\n0.002\n–\n0.002\nCopper (Cu)\n0.01\n0.002\n0.002\nIron (Fe)\n0.5\n0.02\n0.02\nManganese (Mn)\n0.1\n0.01\n0.01\nMolybdenum (Mo)\n0.001\n0.001\n0.001\nZinc (Zn)\n0.01\n0.002\n0.002\nb). MINIMUM SECONDARY NUTRIENT CONTENT (PERCENTAGE WEIGHT OF FERTILISER)\n2% magnesium oxide (MgO) ie 1.2% Mg.\n3% sodium oxide (Na2O) ie 2.2% Na.\n5% sulphur trioxide (SO3) ie 2% S.\nTABLE 2\nCHELATING AGENTS FOR TRACE ELEMENTS\nName\nAbbreviation\nChemical Symbols\nSodium potassium or ammonium salts or acid salts of:\nethylene diamine tetraacetic acid:\nEDTA\nC10H16O8N2\ndiethylene triamine pentaacetic acid:\nDPTA\nC14H23O10N3\nethylene diamine — di (O-hydroxyphenyl acetic) acid:\nEDDHA\nC18H20O6N2\nhydroxy-2 ethylene diamine triacetic acid:\nHEEDTA\nC10H18O7N2\nethyldiamine-di (O-hydroxy P-methyl phenyl) acetic acid\nEDDHMA\nC20H24N2O6\nethylene diamine di (5-carboxy -2hydroxyphenyl) acetic acid\nEDDCHA\nC20H20O10N2",
  "extent": "E+W+S",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "I",
      "label": "I1",
      "text": "Sch. 2 Pt. 1 para. 9 in force at 1.11.1991, see reg. 1(1)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1991/2197/schedule/2/paragraph/9",
    "retrieved_at": "2026-10-29T14:37:20.267878+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."
}