The Fertilisers Regulations 1991

SECTION C: FLUID FERTILISERS

Group	Name of Material	Meaning	Declaration	Limits of variation (absolute value in % by weight, except where stated)
(1)	(2)	(3)	(4)	(5)	(6)
* This is only an indication of how the material should be named and accordingly this form of words should not be used in the statutory statement.
1(a)	Nitrogen fertiliser solution	Product obtained chemically and by dissolution in water, in a form stable at atmospheric pressure, without addition of organic nutrients of animal or vegetable origin, containing by weight not less than 15% nitrogen (N). Nitrogen to be expressed as total nitrogen or, if there is only one form, nitric nitrogen or ammoniacal nitrogen or ureic nitrogen. The maximum biuret content to be ureic N × 0.026	Amount of total nitrogen Amount, where equal to or greater than 1% by weigh, of: 1.  nitric nitrogen 2.  ammoniacal nitrogen 3.  ureic nitrogen Optional declarations Where the biuret content is less than 0.2%, the statement “low in biuret” may be made	0.6
	Ammonium nitrate-urea fertiliser solution	Product obtained chemically and by dissolution in water, with ammonium nitrate and urea as essential ingredients, containing by weight not less than 26% nitrogen (N). Nitrogen expressed as total nitrogen, where the ureic nitrogen accounts for about half of the nitrogen present. The maximum biuret content to be 0.5%	Amount of total nitrogen Amount of nitric nitrogen Amount of ammoniacal nitrogen Amount of ureic nitrogen Optional declarations Where the biuret content is less than 0.2% the statement “low in biuret” may be made	0.6
	Calcium nitrate solution (may be followed by one of the following indications: for foliar application for making nutrient solutions for ferti-irrigation)	Product obtained by dissolving calcium nitrate in water and containing not less than 8% nitrogen (N). Nitrogen expressed as nitric nitrogen with a maximum 1% ammoniacal nitrogen.	Amount of total nitrogen Optional declarations Amount of nitric nitrogen Amount of ammoniacal nitrogen	0.6
			Amount of calcium, where a use is stipulated (see column 1)	One quarter, up to a limit of 0.9%
1(b)	Aqueous ammonia	Solution containing ammonia gas dissolved in water, containing not less than 15% ammoniacal nitrogen(N).	Amount of ammoniacal nitrogen	0.3
1(c)	Straight nitrogenous fluid fertilisers named in accordance with regulation 4(3)*	Any straight nitrogenous fluid fertiliser not otherwise specified in this table.	Amount of total nitrogen	0.8
1(d)	Nitrogenous fluid fertiliser	Product obtained by mixing or blending two or more of the fertilisers listed in Groups 1(a), 1(b) and 1(c) of Section C of this table.	Amount of total nitrogen	0.5 (for declarations up to and including 10% N) 0.8 (for declarations exceeding 10% N and up to and including 15% N) 1.1 (for declarations exceeding 15% N)
	In addition the source materials shall be indicated in parentheses in descending order of nutrient contribution
			Amount of ureic nitrogen save that a declaration of 10% or less need not be made	As set out in paragraph 7(b) of this schedule
1(e)	Straight Phosphatic fluid fertilixsers named in accordance with regulation 4(3)*	Straight Phosphatic fluid fertiliser.	Amount of total phosphorus pentoxide	0.9
1(f)	Phosphatic fluid fertiliser	Product obtained by mixing or blending two or more of the fertilisers at Group 1(e).	Amount of total phosphorus pentoxide	0.5 (for declarations up to and including 10% P2O5) 0.8 (for declarations exceeding 10% P2O5 and up to and including 15% P2O5) 1.1 (for declarations exceeding 15% P2O5)
	In addition the source materials shall be indicated in parentheses in descending order of nutrient contribution
			Amount of phosphorus pentoxide soluble in 2% formic acid	0.8
1(g)	Straight potassic fluid fertilisers named in accordance with Regulation 4(3)*	Straight potassic fluid fertiliser.	Amount of total potassium oxide	1.0
1(h)	Potassic fluid fertiliser In addition the source materials shall be indicated in parentheses in descending order of nutrient contribution	Product obtained by mixing or blending two or more of the fertilisers at Group 1(g).	Amount of total potassium oxide	0.5 (for declarations up to and including 10% K2O) 0.8 (for declarations up to and including 10% K2O) 1.1 (for declarations exceeding 15&:percnt; K2O)
2	NPK fertiliser solution	Product obtained chemically and by dissolution in water, in a form stable at atmospheric pressure, without addition of organic nutrients of animal or vegetable origin, containing by weight: 1.  Not less than 2% nitrogen (N) 2.  Not less than 3% phosphorus pentoxide (P2O5) 3.  Not less than 3% potassium oxide (K2O). The sum of the three nutrients must be not less than 15% by weight. Maximum biuret content: Ureic N × 0.026.	Nitrogen (N) EEC fertiliser Amount of total nitrogen Amount, where equal to or greater than 1% by weight, of:— 1.  nitric nitrogen 2.  ammoniacal nitrogen 3.  ureic nitrogen Other than EEC fertiliser Amount of total nitrogen Amount of ureic nitrogen save that a declaration of 10% or less need not be made Phosphorus Pentoxide (P2O5) Amount of phosphorus pentoxide soluble in water Potassium Oxide (P2O) Amount of potassium oxide soluble in water Optional declarations Where the biuret content is less than 0.2% the statement “low in biuret” may be made. Amount of chlorine. Where the chlorine content is not greater than 2% the statement “low in chlorine” may be made	N 1.1 As set out in paragraph 7 of this Schedule P2O5 1.1 K2O 1.1 N + P2O5 + K2O 1.9 Cl 0.2	N 0.5 P2O5 0.5 K2O 0.5
	NPK fertiliser suspension	Product in fluid form, in which the nutrients are derived from substances both in suspension in water and in solution without addition of organic nutrients of animal or vegetable origin, containing by weight: 1.  not less than 3% nitrogen (N) 2.  not less than 4% phosphorus pentoxide (P2O5) 3.  Not less than 4% potassium oxide (K2O). The sum of the three nutrients must not be less than 20% by weight. Maximum biuret content: ureic N × 0.026. The fertiliser must not contain Thomas slag, aluminium calcium phosphate, calcined phosphates, partially solubilised phosphates, or natural phosphates	Nitrogen (N) EEC fertiliser Amount of total nitrogen Amount, where equal to or greater than 1% by weight, of:— 1.  nitric nitrogen 2.  ammoniacal nitrogen 3.  ureic nitrogen Other than EEC fertiliser Amount of total nitrogen Amount of ureic nitrogen save that a declaration of 10% or less need not be made Phosphorus Pentoxide (P2O5) Where phosphorus pentoxide soluble in water is less than 2%, amount of:— 1.  Phosphorus pentoxide soluble in neutral ammonium citrate Where phosphorus pentoxide soluble in water is equal to or greater than 2%, amount of:— 1.  Phosphorus pentoxide soluble in neutral ammonium citrate and in water 2.  Phosphorus pentoxide soluble in water Potassium Oxide (K2O) Amount of potassium oxide soluble in water Optional declarations Where the biuret content is less than 0.2% the statement “low in biuret” may be made Amount of chlorine. Where the chlorine content is not greater than 2% the statement “low in chlorine” may be made	N 1.1 As set out in paragraph 7 of this Schedule P2O5 1.1 As set out in paragraph 7(a) of this Schedule K2O 1.1 N1.9 +P2O51.9 +K2O1.9 Cl 0.2	N 0.5 P2O5 0.5 K2O 0.5
	NP fertiliser solution	Product obtained chemically and by dissolution in water, in a form stable at atmospheric pressure, without addition of organic nutrients of animal or vegetable origin, containing by weight: 1.  not less than 3% nitrogen(N) 2.  not less than 5% phosphorus pentoxide (P2O5). The sum of the two nutrients must not be less than 18% by weight. The maximum biuret content is ureic N × 0.026.	Nitrogen (N) EEC fertiliser Amount of total nitrogen Amount, where equal to or greater than 1% by weight, of:— 1.  nitric nitrogen 2.  ammoniacal nitrogen 3.  ureic nitrogen Other than EEC fertiliser Amount of total nitrogen Amount of ureic nitrogen save that a declaration of 10% or less need not be made Phosphorus Pentoxide (P2O5) Amount of phosphorus pentoxide soluble in water Optional declaration Where the biuret content is less than 0.2% the statement “low in biuret” may be made	N 1.1 As set out in paragraph 7 of this Schedule P2O5 1.1 N1.5 +P2O51.5	N 0.5 P2O5 0.5
	NP fertiliser suspension	Product in fluid form, in which the nutrients are derived from substances both in solution and in suspension in water, without addition of organic nutrients of animal or vegetable origin, containing by weight: 1.  Not less than 3% nitrogen (N) 2.  Not less than 5% phosphorus pentoxide (P2O5). The sum of the two nutrients must not be less than 18% by weight.	Nitrogen (N) EEC fertiliser Amount of total nitrogen Amount, where equal to or greater than 1% by weight, of:— 1.  nitric nitrogen 2.  ammoniacal nitrogen 3.  ureic nitrogen Other than EEC fertiliser Amount of total nitrogen Amount of ureic nitrogen save that a declaration of 10% or less need not be made Phosphorus Pentoxide (P2O5) Where phosphorus pentoxide soluble in water is less than 2%, amount of:– 1.  Phosphorus pentoxide soluble in neutral ammonium citrate	N 1.1 As set out in paragraph 7 of this Schedule As set out in paragraph 7 of this Schedule	N 0.5
		The maximum biuret content is ureic N × 0.026.	Where phosphorus pentoxide soluble in water is equal to or greater than 2%, amount of:
		The fertiliser may not contain Thomas slag, aluminium calcium phosphate, calcined phosphates, partially solubilised phosphate or natural phosphates.	1.  Phosphorus pentoxide (P2O5) soluble in neutral ammonium citrate and in water 2.  Phosphorus pentoxide soluble in water Optional Declaration Where the biuret content is less than 0.2% the statement “low in biuret” may be made	P2O5 1.1 N1.5 +P2O51.5	P2O5 0.5
	NK fertiliser solution	Product obtained chemically and by dissolution in water, in a form stable at atmospheric pressure, without addition of organic products of animal or vegetable origin, containing by weight: 1.  Not less than 3% nitrogen (N) 2.  Not less than 5% potassium oxide (K2O) The sum of the two nutrients must not be less than 15% The maximum biuret content shall be ureic N × 0.026.	Nitrogen (N) EEC fertiliser Amount of total nitrogen Amount, where equal to or greater than 1% by weight, of:— 1.  nitric nitrogen 2.  ammoniacal nitrogen 3.  ureic nitrogen Other than EEC fertiliser Amount of total nitrogen Amount of ureic nitrogen save that a declaration of 10% or less need not be made Potassium Oxide (K2O) Amount of potassium oxide soluble in water	N 1.1 As set out in paragraph 7 of this Schedule K2O 1.1 N1.5 +K2O1.5	N 0.5 K2O 0.5
			Optional declarations Amount of chlorine Where the chlorine content is not greater than 2%, the statement “low in chlorine” may be made Where the biuret content is less than 0.2%, the statement “low in biuret” may be made	Cl 0.2
	NK fertiliser suspension	Product in fluid form, in which the nutrients are derived from substances both in solution and in suspension in the water, without addition of organic nutrients of animal or vegetable origin, containing by weight: 1.  Not less than 3% nitrogen (N) 2.  Not less than 5% potassium oxide (K2O). The sum of the two nutrients must not be less than 18% by weight. The maximum biuret content shall be urieic N × 0.026.	Nitrogen (N) EEC fertiliser Amount of total nitrogen Amount, where equal to or greater than 1% by weight, of:— 1.  nitric nitrogen 2.  ammoniacal nitrogen 3.  ureic nitrogen Other than EEC fertiliser Amount of total nitrogen Amount of ureic nitrogen save that a declaration of 10% or less need not be made	N 1.1 As set out in paragraph 7 of this Schedule	N 0.5
			Potassium Oxide (K2O) Amount of potassium oxide soluble in water	K2O 1.1 N1.5 +K2O1.5	K2O 0.5
			Optional declarations Amount of chlorine Where the chlorine content is not greater than 2%, the statement “low in chlorine” may be made Where the biuret content is less than 0.2%, the statement “low in biuret” may be made	Cl 0.2
	PK fertiliser solution	Product obtained chemically and by dissolution in water, without addition of organic nutrients of animal or vegatable origin, containing by weight: 1.  Not less than 5% phosphorus pentoxide (P2O5) 2.  Not less than 5% potassium oxide (K2O) The sum of the two nutrients must not be less than 18% by weight.	Phosphorus Pentoxide (P2O5) Amount of phosphorus pentoxide soluble in water Potassium oxide (K2O) Amount of potassium oxide soluble in water Optional declarations Amount of chlorine Where the chlorine content is not greater than 2% the statement “low in chlorine” may be made	P2O5 1.1 K2O 1.1 P2O51.5 +K2O1.5 Cl 0.2	P2O5 0.5 K2O 0.5
	PK fertiliser suspension	Product in fluid form, in which the nutrients are derived from substances both in solution and in suspension in water, without addition of organic nutrients of animal or vegetable origin containing by weight: 1.  Not less than 5% phosphorus pentoxide (P2O5) 2.  Not less than 5% potassium oxide (K2O) The sum of the two nutrients must not be less than 18% by weight. The fertilisers must not contain Thomas slag, aluminium calcium phosphate, calcined phosphates, partially solubilised phosphates or natural phosphates.	Phosphorus Pentoxide (P2O5) Where phosphorus pentoxide soluble in water is less than 2%, amount of: 1.  Phosphorus pentoxide soluble in neutral ammonium citrate Where phosphorus pentoxide soluble in water is equal to or greater than 2%, amount of: 1.  Phosphorus pentoxide soluble in neutral ammonium citrate and in water 2.  Phosphorus pentoxide soluble in water Potassium Oxide (K2O) Amount of water-soluble potassium oxide Optional declarations Amount of chlorine Where the chlorine content is not greater than 2% the statement “low in chlorine” may be made	As set out in paragraph 7 of this Schedule P2O5 1.1 K2O 1.1 P2O51.5 +K2O1.5 Cl 0.2	P2O5 0.5 K2O 0.5
3	Compound fluid fertiliser	Products not otherwise specified in this Section of this table, obtained by mixing or blending materials to provide either two or three of the major nutrients nitrogen (N), phosporus pentoxide (P2O5) and potassium oxide (K2O). Excluded are any materials sold or offered for sale for improving soil structure or as growing media, which contain less than 1% of each of these nutrients. At least one of these nutrients must be derived from a material in the second column of Group 1 of Section C of this table.	Nitrogen (N) Amount of total nitrogen Amount of ureic nitrogen save that a declaration of 10% or less need not be made Phosphorus Pentoxide (P2O5) Amount of total phosphorus pentoxide Amount of phosphorus pentoxide soluble in water	N 0.5 (for declarations below 3.5% N) N 1.1 (for declarations 3.5% N and above) As set out in paragraph 7(b) of this Schedule P2O5 0.5 (for declarations below 5.5% P2O5) P2O5 1.1 (for declarations 5.5% P2O5 and above As set out in paragraph 7(a) of this Schedule
4	Compound fluid fertiliser not containing any material mentioned in the second column of Group 1 of Section C of this table*	Products not otherwise specified in this Section of this table, including those products obtained by mixing or blending materials to provide either two or three of the major nutrients nitrogen (N), phosphorus pentoxide (P2O5) and potassium oxide (K2O). Excluded are any materials sold or offered for sale for improving soil structure or as growing media, which contain less than 1% of these nutrients.	Potassium Oxide (K2O) Amount of total potassium oxide	K2O 0.5 (for declarations below 5.5% K2O) K2O 1.1 (for declarations 5.5% K2O and above) N + P2O5 1.5for products containing two nutrients only N + K2O 1.5for products containing two nutrients only P2O5+K2O 1.5for products containing two nutrients only
		None of the nutrients may be derived from a material mentioned in the second column of Group 1 of this Section of this table.		N1.9 +P2O51.9 +k2O1.9