PART 3Crop requirements

Maximum nitrogen limits by crop10.

The total amount of nitrogen permitted to be spread on any crop listed in the first column below is the figure given in the second column below, adjusted in accordance with the notes to the table and multiplied by the total area in hectares of that crop sown on the holding.

Maximum nitrogen

Crop

Permitted amount of nitrogen (kg)(a)

Standard yield (tonne/ha)

Asparagus

150

n/a

Autumn or early winter sown wheat

220(b)(c)(d)

8.0

Beetroot

350

n/a

Brussels sprouts

350

n/a

Cabbage

350

n/a

Calabrese

350

n/a

Cauliflower

350

n/a

Carrots

150

n/a

Celery

250

n/a

Courgettes

250

n/a

Dwarf bean

250

n/a

Field beans

0

n/a

Forage maize

150

n/a

Grass

300(f)

n/a

Leeks

350

n/a

Lettuce

250

n/a

Onions

250

n/a

Parsnips

250

n/a

Peas

0

n/a

Potatoes

270

n/a

Radish

150

n/a

Runner beans

250

n/a

Spring-sown wheat

180(c)(d)

7.0

Spring barley

150(c)

5.5

Sugar beet

150

n/a

Sugar beet

120

n/a

Swedes

150

n/a

Sweetcorn

250

n/a

Turnips

250

n/a

Winter barley

180(b)(c)

6.5

Winter oilseed rape

250(e)

3.5

(a)

An additional 80 kg per hectare is permitted to all crops grown in fields if the current or previous crop has had straw or paper sludge applied to it.

(b)

An additional 20 kg per hectare is permitted on fields with shallow soil (other than shallow soils over sandstone).

(c)

An additional 20 kg per hectare is permitted for every tonne that the expected yield exceeds the standard yield.

(d)

An additional 40 kg per hectare is permitted to milling wheat varieties.

(f)

An additional 40 kg per hectare is permitted to grass that is cut at least three times a year.

(e)

This is inclusive of any nitrogen that is applied as an exemption to the closed period for manufactured nitrogen fertiliser. The permitted amount may be increased by up to 30 kg per hectare for every half tonne that expected yield exceeds the standard yield.