The Action Programme for Nitrate Vulnerable Zones (Scotland) Regulations 2008

Regulations 7, 14 and 15

SCHEDULE 1 S Calculation of nitrogen (“N”) in livestock manure

Table 1

Standards for the volume of excreta and nitrogen in manure produced by livestock

	Daily Excreta	Daily N production
Pigs
	(litres per animal/day)	(grams per animal/day)
Weight
From 7 to 13 kg	1.3	4.1
From 13 to 31 kg	2.0	14.2
From 31 to 66 kg–
dry fed	3.7	24
liquid fed	7.1	24
From 66 kg and–
intended for slaughter–
dry fed	5.1	33
liquid fed	10.0	33
sow intended for breeding that has not yet had its first litter.	5.6	38
sow (including litter up to 7 kg) fed on a diet supplemented with synthetic amino acids	10.9	44
sow (including litter up to 7 kg) fed on a diet without synthetic amino acids	10.9	49
Breeding boar from 66kg up to 150kg	5.1	33
Breeding boar, from 150kg	8.7	48

1 Castrated males.
	Daily Excreta	Daily N production
Cattle
	(litres per animal/day)	(grams per animal/day)
Calf (all categories) up to 3 months	7.0	23
Dairy cow
From 3 months up to 13 months	20	95
From 13 months up to first calf	40	167
After first calf and–
annual milk yield more than 9000 litres	64	315
annual milk yield between 6000 to 9000 litres	53	276
annual milk yield less than 6000 litres	42	211
Beef cows or steers1
From 3 up to 13 months	20	93
From 13 up to 25 months	26	137
Over 25 months–	32	137
females or steers for slaughter	32	137
females for breeding–
weighing 500 kg or less	32	167
weighing more than 500 kg	45	227
Bulls
non-breeding, 3 months and over	26	148
breeding
From 3 up to 25 months	26	137
Over 25 months	26	132

1 In the case of a ewe, this figure includes one or more suckled lambs until the lambs are aged six months.
	Daily Excreta	Daily N production
Sheep
	(litres per animal/day)	(grams per animal/day)
From 6 months up to 9 months old	1.8	5.5
From 9 months old to first lambing, first tupping or slaughter	1.8	3.9
After lambing or tupping1
weight up to 60 kg	3.3	21
weight over 60 kg	5.0	33

	Daily Excreta	Daily N production
Goats, deer and horses
	(litres per animal/day)	(grams per animal/day)
Goat	3.5	41
Deer
Breeding	5.0	42
Other	3.5	33
Horse	24	58

1 This figure includes litter as appropriate.
	Daily Excreta1	Daily N production
Poultry
	(litres per bird/day)	(grams per bird/day)
Laying chicken
up to 17 weeks	0.04	0.64
17 weeks and over (caged)	0.12	1.13
17 weeks and over (free range)	0.12	1.5
Broiler chicken (table)	0.06	1.06
Broiler chicken (breeder)–
up to 25 weeks	0.04	0.86
25 weeks and over	0.12	2.02
Turkey
Male	0.16	3.74
Female	0.12	2.83
Duck	0.10	2.48
Ostrich	1.6	3.83

Table 2

Total nitrogen content in livestock manure

	Total N
Manure type
	kg/metres3 or kg/tonne
Solid manure
Cattle farmyard manure	6.0
Pig farmyard manure	7.0
Sheep farmyard manure	7.0
Duck manure	6.5
Poultry layer manure	19
Poultry broiler manure [litter]	30
Turkey manure [litter]	30
Cattle slurry
cattle slurry, 2% dry matter	1.6
cattle slurry, 6% dry matter	2.6
cattle slurry, 10% dry matter	3.6
Pig slurry
Pig slurry, 2% dry matter	3.0
Pig slurry, 4% dry matter	3.6
Pig slurry, 6% dry matter	4.4
Separated slurry (some solids removed)
Strainer box cattle slurry	1.5
Weeping-wall cattle slurry	2.0
Mechanically separated cattle slurry	3.0
Mechanically separated pig slurry	3.6
Dirty water (not slurry)
Dirty water, less than 1% dry matter	0.5

Regulation 7(3)(b)

SCHEDULE 2 S Quantity of cleaning water used by livestock (quantities in litres)

		Range	Typical
Livestock type	Cleaning system
		per animal/day	per animal/day
Dairy cows	Cleaning milking parlour equipment, washing udders etc
	Without a power hose	14–22	18
	With a power hose	27–45	35
		Range	Typical
		per batch	per batch
Pigs	Cleaning out pens after each batch
	(10 pigs per pen)	16–24	18

Regulations 12, 13 and 19

SCHEDULE 3 S Calculation of maximum nitrogen application to crops

Table 1

Maximum nitrogen application to arable and forage crops

PREVIOUS CROP: N residue group 1 –	cereals
	carrots
	swedes
	turnips (removed)
	linseed

Adjustments
1 An additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
2 An additional 40kgN/ha is permitted to milling wheat varieties.
3 An additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
4 The spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0 tonne/ha (“t/ha”).
5 An additional 15kg/N/ha is permitted for high N grain distilling varieties.
		Predominant Soil Type in Field
Planned crop	Standard yield (tonne/ha)	Sand or shallow	Sandy loam or other mineral	Humose	Peaty
Spring Barley 3, 5	5.5	150	130	80	50
Winter Barley 3	6.5	200	180	120	80
Spring Wheat 1.2	7.0	170	150	100	60
Winter Wheat 1.2	8.0	220	200	140	80
Spring Oats 3	5.0	120	100	50	20
Winter Oats 3	6.0	160	140	90	50
Spring Oilseed Rape	n/a	100	100	50	20
Winter Oilseed Rape (spring) 4	4.0	200	200	120	80
Winter Oilseed Rape (autumn)	n/a	30	30	30	30
Potatoes	n/a	245	225	175	145
Forage Maize, Rape	n/a	140	120	70	40
Kale	n/a	180	160	100	60
Swedes and Turnips	n/a	110	90	50	20
Linseed	n/a	80	60	30	0

PREVIOUS CROP: N residue group 2 –	Harvested fodder (whole crop)	1–2 year low N leys1, not grazed within 2 months of ploughing out or during September or October
	oilseed rape
	hemp	(1low N means average N use in last 2 years was less than 150 kg/ha/year)
	vining peas
	potatoes

Adjustments If actual localised rainfall from 1st October – 1st March exceeds 450 mm: add 10kgN/ha
1 An additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
2 An additional 40kgN/ha is permitted to milling wheat varieties.
3 An additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
4 The spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.
5 An additional 15kg/N/ha is permitted for high N grain distilling varieties.
		Predominant Soil Type in Field
Planned crop	Standard yield(t/ha)	Sand or shallow	Sandy loam or other mineral	Humose	Peaty
Spring Barley 3,5	5.5	140	120	70	40
Winter Barley 3	6.5	190	170	110	70
Spring Wheat 1.2	7.0	160	140	90	50
Winter Wheat 1.2	8.0	210	190	130	70
Spring Oats 3	5.0	110	90	40	10
Winter Oats 3	6.0	150	130	80	40
Spring Oilseed Rape	n/a	90	90	40	10
Winter Oilseed Rape (spring) 4	4.0	190	190	110	70
Winter Oilseed Rape (autumn)	n/a	20	20	20	20
Potatoes	n/a	235	215	165	135
Forage Maize, Rape	n/a	140	120	70	40
Kale	n/a	170	150	90	50
Swedes and Turnips	n/a	100	80	40	10
Linseed	n/a	70	50	20

PREVIOUS CROP: N residue group 3 –	harvested fodder (root only)	1–2 year low N leys, grazed within 2 months of ploughing out or during September or October
	Beans	1–2 year high N leys2, not grazed within 2 months of ploughing out or during September or October
	combining peas	[F1 Thin permanent grass, low N, no clover]
	whole crop lupins	[F2 (] 2high N means average N use in last 2 years was more than 150 kg/ha/year, or high clover)

Adjustments If actual local rainfall from 1st October – 1st March exceeds 450 mm: add 20kgN/ha to crops grown in sandy, shallow or sandy loam soils: add 10kgN/ha to crops grown in other mineral, humose and peaty soils
1 An additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
2 An additional 40kgN/ha is permitted to milling wheat varieties.
3 An additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
4 The spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.
5 An additional 15kg/N/ha is permitted for high N grain distilling varieties.
		Predominant Soil Type in Field
Planned crop	Standard yield(t/ha)	Sand or shallow	Sandy loam or other mineral	Humose	Peaty
Spring Barley 3,5	5.5	130	110	60	30
Winter Barley 3	6.5	180	160	100	60
Spring Wheat 1.2	7.0	150	130	80	40
Winter Wheat 1.2	8.0	200	180	120	60
Spring Oats 3	5.0	100	80	30	0
Winter Oats 3	6.0	140	120	70	30
Spring Oilseed Rape	n/a	80	80	30	0
Winter Oilseed Rape (spring) 4	4.0	180	180	100	60
Winter Oilseed Rape (autumn)	n/a	10	10	10	10
Potatoes	n/a	225	205	155	125
Forage Maize, Rape	n/a	140	120	70	40
Kale	n/a	160	140	80	40
Swedes and Turnips	n/a	90	70	30	0
Linseed	n/a	60	40	10	0

Textual Amendments

F1 Words in Sch. 3 inserted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(2)

F2 Words in Sch. 3 inserted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(3)

PREVIOUS CROP: N residue group 4 –	grain lupin	1–2 year high N leys, grazed within 2 months of ploughing outor during September or October
		3–5 year low N leys, not grazed within 2 months of ploughing outor during September or October
		[F3 Thick permanent grass, low N]

Adjustments If actual local rainfall from 1 October – 1 March exceeds 450 mm: add 20kgN/ha to crops grown in sandy, shallow or sandy loam soils: add 10kgN/ha to crops grown in other mineral, humose and peaty soils
1 An additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
2 An additional 40kgN/ha is permitted to milling wheat varieties.
3 An additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
4 The spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.
5 An additional 15kg/N/ha is permitted for high N grain distilling varieties
		Predominant Soil Type in Field
Planned crop	Standard yield(t/ha)	Sand or shallow	Sandy loam or other mineral	Humose	Peaty
Spring Barley 3,5	5.5	110	90	40	10
Winter Barley 3	6.5	170	140	80	40
Spring Wheat 1.2	7.0	130	110	60	20
Winter Wheat 1.2	8.0	180	160	100	40
Spring Oats 3	5.0	80	60	10	0
Winter Oats 3	6.0	130	100	50	10
Spring Oilseed Rape	n/a	60	60	10	0
Winter Oilseed Rape (spring) 4	4.0	140	140	80	40
Winter Oilseed Rape (autumn)	n/a	0	0	0	0
Potatoes	n/a	205	185	145	115
Forage Maize, Rape	n/a	140	120	70	40
Kale	n/a	110	90	30	0
Swedes and Turnips	n/a	70	50	10	0
Linseed	n/a	10	0	0	0

Textual Amendments

F3 Words in Sch. 3 inserted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(4)

PREVIOUS CROP:N residue group 5 –	leafy brassica vegetables	3–5 year high N leys, not grazed within 2 months of ploughing out or during September or October
	Leafy non-brassica vegetables
	grazed fodder	3–5 year low N leys, grazed within 2 months of ploughingout or during September or October

Adjustments If actual local rainfall from 1 October – 1 March exceeds 450 mm: add 20kgN/ha to crops grown in sandy, shallow or sandy loam soils: add 10kgN/ha to crops grown in other mineral, humose and peaty soils
1 An additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
2 An additional 40kgN/ha is permitted to milling wheat varieties.
3 An additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
4 The spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.
5 An additional 15kg/N/ha is permitted for high N grain distilling varieties
		Predominant Soil Type in Field
Planned crop	Standard yield(t/ha)	Sand or shallow	Sandy loam or other mineral	Humose	Peaty
Spring Barley 3,5	5.5	80	60	10	0
Winter Barley 3	6.5	140	110	50	10
Spring Wheat 1.2	7.0	100	30	0	0
Winter Wheat 1.2	8.0	150	130	70	10
Spring Oats 3	5.0	50	30	0	0
Winter Oats 3	6.0	100	70	20	0
Spring Oilseed Rape	n/a	30	30	0	0
Winter Oilseed Rape (spring) 4	4.0	110	110	50	0
Winter Oilseed Rape (autumn)	n/a	0	0	0	0
Potatoes	n/a	175	155	135	105
Forage Maize, Rape	n/a	70	50	0	0
Kale	n/a	110	90	30	0
Swedes and Turnips	n/a	70	50	10	0
Linseed	n/a	10	0	0	0

PREVIOUS CROP: N residue group 6 3–5 year high N leys, F4 ... grazed within 2 months of ploughing out or during September or October

Adjustments If actual local rainfall from 1 October – 1 March exceeds 450 mm: add 20kgN/ha to crops grown in sandy, shallow or sandy loam soils: add 10kgN/ha to crops grown in other mineral, humose and peaty soils
1 An additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
2 An additional 40kgN/ha is permitted to milling wheat varieties.
3 An additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
4 The spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.
5 An additional 15kg/N/ha is permitted for high N grain distilling varieties.
		Predominant Soil Type in Field
Planned crop	Standard yield(t/ha)	Sand or shallow	Sandy loam or other mineral	Humose	Peaty
Spring Barley 3,5	5.5	40	20	0	0
Winter Barley 3	6.5	100	70	10	0
Spring Wheat 1.2	7.0	170	150	100	60
Winter Wheat 1.2	8.0	110	90	30	0
Spring Oats 3	5.0	10	0	0	0
Winter Oats 3	6.0	60	30	0	0
Spring Oilseed Rape	n/a	0	0	0	0
Winter Oilseed Rape (spring) 4	4.0	70	70	10	0
Winter Oilseed Rape (autumn)	n/a	0	0	0	0
Potatoes	n/a	135	115	115	115
Forage Maize, Rape	n/a	30	10	0	0
Kale	n/a	70	50	0	0
Swedes and Turnips	n/a	50	30	0	0
Linseed	n/a	0	0	0	0

Textual Amendments

F4 Word in Sch. 3 omitted (1.1.2009) by virtue of The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(5)

Table 2

Site Classes– Applicable to grassland

Grassland 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.

	Average April – September rainfall mm (inches)
Soil texture	More than 500	425–500	350–425	Less than 350
	(20)	(17–20)	(14–17)	(14)
Sands and shallow soils	2	3	4	5
All other soils	1	2	2	3

Table 3

Maximum nitrogen application to grassland

	Site	Site	Site	Site	Site
Grass management	Class 1	Class 2	Class 3	Class 4	Class 5
	kgN/ha	kgN/ha	kgN/ha	kgN/ha	kgN/ha
2 or 3 cut silage and grazing	310	300	290	280	270
1 cut silage and grazing	280	270	260	250	240
Grazing with low clover	270	260	250	240	230
Hay and grazing	220	210	200	190	180
Grass with high clover	100	90	80	70	60

Table 4

Percentage of Nitrogen available to next crop

PART A—Farmyard manure (FYM) – Percentage of nitrogen available to next crop following FYM applications (all crops and all soil types).

FYM type	Manure Reference Number	Total N (kg/t)	Dry Matter %	% N available to following crop
Cattle FYM	1	6	25	10
Separated solids from cattle slurry	2	4	20	10
Pig FYM	3	7	25	10
Separated solids from pig slurry	4	5	20	10
Sheep FYM	5	7	25	10
Duck FYM	6	6.5	25	10
Horse FYM	7	7	30	10

PART 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).

*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.					Autumn		Winter		Spring	Summer use on Grassland
					August–October		November–January		February–April
Manure Type	Manure Reference Number	Incorporation time*	Total N (kg/t)	Dry Matter %	Sands Sandy Loams Shallow	All other soils	Sands Sandy Loams Shallow	All other soils	All Soils	All Soils
Layer manure	8	Over 24 hrs	19	35	20	25 (30)	25	25	35	35
Layer manure	9	Within 24 hrs	19	35	20	25 (30)	25	40	50	N/A
Broiler/Turkey litter	10	Over 24 hrs	30	60	20	35 (40)	20	25	30	30
Broiler/Turkey litter	11	Within 24 hrs	30	60	20	30 (35)	20	30	40	N/A

PART 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).

					Autumn		Winter		Spring	Summer use onGrassland
					August–October		November–January		Feb – April
Manure Type	Dry Matter %	Ref No.	Incorporation time/method	Total N (kg/t)	Sands Sandy Loams Shallow	All other soils	Sands Sandy Loams Shallow	All other soils	All Soils
Cattle slurry – Surface applied	2	12	Not incorporated	1.6	20	30 (35)	30	30	45	30
Cattle slurry – Surface applied	6	13	Not incorporated	2.6	20	25 (30)	25	25	35	25
Cattle slurry – Surface applied	10	14	Not incorporated	3.6	20	20 (25)	20	20	[F5 25]	20
Cattle slurry – ploughed in	2	15	Within 6 hrs	1.6	20	35 (40)	[F6 30]	35	50	N/A
Cattle slurry – ploughed in	6	16	Within 6 hrs	2.6	20	30 (35)	[F7 25]	30	40	N/A
Cattle slurry – ploughed in	10	17	Within 6 hrs	3.6	20	25 (30)	20	25	30	N/A
Cattle slurry – Band-spread	2	18	Band-spread	1.6	20	30 (35)	30	30	50	40
Cattle slurry – Band-spread	6	19	Band-spread	2.6	20	25 (30)	25	25	40	30
Cattle slurry – Band-spread	10	20	Band-spread	3.6	20	20 (25)	20	20	30	25
Cattle slurry – shallow injected	2	21	Shallow injected	1.6	20	30 (35)	35	35	55	45
Cattle slurry – shallow injected	6	22	Shallow injected	2.6	20	25 (30)	30	30	45	35
Cattle slurry – shallow injected	10	23	Shallow injected	3.6	20	20 (25)	25	25	35	30
Separated – Strainer box	*	24		1.5
Separated – Weeping wall	*	25	Select from above	[F8 2]	*Use the appropriate values for 2% dry matter cattle slurry
Separated – Mechanical	*	26		[F9 3]
Dirty Water	0.5	27	Not incorporated	0.5	20	35 (40)	35	35	50	30
Pig slurry – surface applied	2	28	Not incorporated	3.0	25	35 (40)	403535	40	55	55
Pig slurry – surface applied	4	29	Not incorporated	3.6	25	30 (35)	3530	35	50	50
Pig slurry – surface applied	6	30	Not incorporated	4.4	25	25 (30)	30	30	45	45
Pig slurry – ploughed in	2	31	Within 6 hrs	3.0	25	45 (50)	[F10 35] 452525	50	65	N/A
Pig slurry – ploughed in	4	32	Within 6 hrs	3.6	25	40 (45)	[F11 30] 40	45	60	N/A
Pig slurry – ploughed in	6	33	Within 6 hrs	4.4	25	40 (45)	[F12 30] 40	40	55	N/A
Pig slurry – Band-spread	2	34	Band-spread	3.0	25	35 (40)	4040	40	60	60
Pig slurry – Band-spread	4	35	Band-spread	3.6	25	35 (40)	3535	35	55	55
Pig slurry – Band-spread	6	36	Band-spread	4.4	25	30 (35)	3530	35	50	50
Pig slurry – shallow injected	2	37	Shallow injected	3.0	25	40 (45)	454040	45	65	65
Pig slurry – shallow injected	4	38	Shallow injected	3.6	25	35 (40)	4035	40	60	60
Pig slurry – shallow injected	6	39	Shallow injected	4.4	25	35 (40)	4035	[F13 40]	55	55
Mechanical separator	**	40	Select from above	3.6	**Use the appropriate value for 2% dry matter pig slurry

Textual Amendments

F5 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(a)

F6 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(b)

F7 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(c)

F8 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(d)

F9 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(e)

F10 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(f)

F11 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(g)

F12 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(h)

F13 Word in Sch. 3 substituted (1.1.2009) by The Action Programme for Nitrate Vulnerable Zones (Scotland) Amendment Regulations 2008 (S.S.I. 2008/394), regs. 1(1), 3(6)(i)

Table 5

Percentage nitrogen content taken up by a crop per given quantity of livestock manure

Column 1	Column 2	Column 3
Type of livestock manure	Percentage content of nitrogen taken up by crop until and including 31 December 2011	Percentage content of nitrogen taken up by crop on and from 1st January 2012
Cattle slurry	20%	35%
Pig slurry	25%	45%
Poultry manure or litter	20%	30%
Solid manure	10%	10%

Regulation 21

SCHEDULE 4 S Maximum quantities of organic manure with high available nitrogen content which may be applied during periods set out in regulation 21

Column 1	Column 2
Organic manure	Maximum quantities which may be applied
Manures and fertilisers with high available nitrogen content, other than poultry manure	30 metres3/ha
Poultry manure	5 tonnes/ha