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SCHEDULE 3 continued

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PREVIOUS CROP: N residue group 6 3–5 year high N leys, not grazed within 2 months of ploughing out or during September or October

Predominant Soil Type in Field
Planned crop Standard yield(t/ha) Sand or shallow Sandy loam or other mineral Humose Peaty

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
a

An additional 20kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
b

An additional 40kgN/ha is permitted to milling wheat varieties.
c

An additional 15kgN/ha is permitted for every tonne that the expected yield exceeds the standard yield.
d

The spring application can be increased by up to 30kgN/ha if the expected yield is over 4.0t/ha.
e

An additional 15kg/N/ha is permitted for high N grain distilling varieties.
Spring Barley c,e 5.5 40 20 0 0
Winter Barley c 6.5 100 70 10 0
Spring Wheat a.b 7.0 170 150 100 60
Winter Wheat a.b 8.0 110 90 30 0
Spring Oats c 5.0 10 0 0 0
Winter Oats c 6.0 60 30 0 0
Spring Oilseed Rape n/a 0 0 0 0
Winter Oilseed Rape (spring) d 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

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

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