14 June 2020

Root Crops


Stubble Turnip Tehnical Aid

Trails Data

Variety Type Relative DM Yield % Relative Fresh Yield % Relative Root Dry Matter Yield % Relative Leaf DM Yield % Disease Resistance
9 = Best
100%=Tonnes/Ha Mildew Alternaria
Samson (Tet) Purple tankard 103 108 119 84 5 6
Delilah White tankard 100 101 117 78 8 7
Barkant (c) Purple tankard 100 100 100 100 * *
Rondo Green globe 93 88 96 90 8 7
Dynamo Purple globe 88 91 99 76 5 8
Whitestar White globe 84 81 79 91 * *
Skyfall Hybrid Leafy 86 68 44 136 6 7
Tyfon Leafy 78 74 56 105 3 7

Data Source: Limagrain UK trials 1993 – 2019 (c) Control Tet: Tetraploid *No data available Disease Scores Dec 2017 Note: Not all varieties trialled every year, not all scores taken every year

Typical Yields and Feed Quality

Average dry matter yield = 4 – 5.5 tonnes/ha
Average fresh yields = 40 – 50 tonnes/ha
Dry matter = 8 – 9%
Crude protein = 17 – 18%
Digestibility value = 68 – 70%
Metabolisable energy = 11 MJ/kg DM

Data Source: Kingshay Forage Costings Report 2010

Typical Costs and Values

Total Cost
Cost per hectare £305/ha
Cost per tonne fresh weight £5
Cost per tonne utilised dry matter £66
Relative value £/tonne DM £135
Cost per litre of milk 2.7p
Cost per kilo of live weight gain 17.9p

Sowing rates per hectare

Drilled into stubble Drilled after grass Broadcast
4-5kg 5-6kg 6-7kg

Fertiliser Guidelines

SNS Index 0 1 2 3 4 5 6
Nitrogen (N) (kg/ha) 100 90 80 60 40 0 – 40 0
Phosphate (P₂O₅) (kg/ha) 85 55 25 0 0 0 0
Potash (K₂O) (kg/ha) 110 80 50 (-2) 20 (+2) 0 0 0 0

When grown as a catch crop after cereals, apply no more than 75kg N/ha at index 0 or 1. Further reductions may be made if the soil is moist and has been cultivated. For stubble turnips sown after mid-August, apply 50 P₂O₅/ha at index 0 only.
Data Source: DEFRA Fertiliser Manual (RB209)

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Forage Rape & Hybrids Tehnical Aid

Trails Data

Variety Relative DM Yield % Relative Fresh Yield % DM Content % Disease Resistance
9 = Best
Winter Hardiness
(9 = Best)
100%=Tonnes/Ha Mildew Alternaria
Interval (Hybrid) 117 125 12.3 9 8 2
Unicorn (Hybrid) 111 114 12.8 8 8 2
Swift (Hybrid) 108 113 12.6 8 8 2
Hobson 107 102 13.9 8 8 5
Gorilla 103 97 14.1 6 7 *
Rampart 102 105 12.7 8 8 *
Stego 102 99 13.6 * * 4
Emerald (c) 100 100 13.2 6 8 4
Redstart (Hybrid) 93 94 13.1 7 7 4
Winfred 93 91 13.5 * * 5
Avon 92 97 12.5 7 8 *
Hungry Gap 84 82 13.5 9 8 4

Data Source: Limagrain UK trials 1998-2019 © Control * No data available Winter Hardiness Scored January 2011 only Note: Not all varieties trialled every year, not all scores taken every year

Typical Yields and Feed Quality

Average dry matter yield = 3.5 – 4.0 tonnes/ha
Average fresh yields = 24 – 35 tonnes/ha
Dry matter = 12 – 13%
Crude protein = 19 – 20%
Digestibility value = 65%
Metabolisable energy = 10 – 11 MJ/kg DM

Data Source: Kingshay Forage Costings Report 2010

Typical Costs and Values

Total Cost
Cost per hectare £408/ha
Cost per tonne fresh weight £12
Cost per tonne utilised dry matter £107
Relative value £/tonne DM £141
Cost per litre of milk 4.5p
Cost per kilo of live weight gain 29.7p

Sowing rates per hectare

Drilled into stubble Drilled after grass Broadcast
6kg 7kg 8kg

Fertiliser Guidelines

SNS Index 0 1 2 3 4 5 6
Nitrogen (N) (kg/ha) 100 90 80 60 40 0 – 40 0
Phosphate (P₂O₅) (kg/ha) 85 55 25 0 0 0 0
Potash (K₂O) (kg/ha) 110 80 50 (-2) 20 (+2) 0 0 0 0

When grown as a catch crop after cereals, apply no more than 75kg N/ha at index 0 or 1. Further reductions may be made if the soil is moist and has been cultivated.
Data Source: DEFRA Fertiliser Manual (RB209)

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Forage Peas Tehnical Aid

Trails Data

Variety Relative DM Yield % Relative Fresh Yield % DM Content % Crude Protein Content % Leaf Type Flower Colour
100%=Tonnes/Ha 5.12 22.2
Magnus 100 100 23.1 15.1 semi – leafless Coloured
Tiberius 92 92 23.0 13.8 semi – leafless White
Mantara 89 88 23.4 14.6 semi – leafless Coloured
Audit 89 87 23.5 15.8 semi – leafless White
Prophet 86 83 24.0 15.8 semi – leafless White
Javlo 77 78 23.0 17.4 semi – leafless White
Arable Silage Mixtures:
Protein Plus 148 84 40.4 9.6
Prosile 124 87 32.9 12.0

Data Source: Limagrain UK trials 2016. Harvested as silage

Typical Yields and Feed Quality

Average dry matter yield = 4 – 6 tonnes/ha
Average fresh yields = 20 – 25 tonnes/ha
Dry matter = 20 – 25%
Crude protein = 16 – 20%
Digestibility value = 62 – 64%
Metabolisable energy = 10 – 10.5 MJ/kg DM

Data Source: Kingshay Forage Costings Report 2010

Typical Costs and Values

Total Cost
Cost per hectare £708/ha
Cost per tonne fresh weight £27
Cost per tonne utilised dry matter £102
Relative value £/tonne DM £128
Cost per litre of milk 5.0p
Cost per kilo of live weight gain 33.11p

Sowing rates per hectare

Drilled Broadcast Arable Silage Mixture
125kg 150kg 175-200

Fertiliser Guidelines

SNS Index 0 1 2 3 4 5 6
Nitrogen (N) (kg/ha) 0 0 0 0 0 0 0
Phosphate (P₂O₅) (kg/ha) 100 70 40 0 0 0 0
Potash (K₂O) (kg/ha) 100 70 40 (-2) 20 (+2) 0 0 0 0

Data Source: DEFRA Fertiliser Manual (RB209)

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Fodder Beet Tehnical Aid

Trails Data

Variety Relative DM Yield % Relative Fresh Yield % Dry Matter Content % Skin Colour % of Root in Ground Mean Bolter Count
100%=Tonnes/Ha 18.5 89.5
Tadorne 113 103 22.7 White 74.0 0.0
Brick RT 112 96 24.1 White 76.3 0.0
Tarine RT 102 103 20.5 Pink 64.4 0.0
Enermax 101 99 21.1 White 67.3 0.2
Blizzard 100 93 22.2 White 72.3 0.8
Magnum (c) 100 100 20.6 White 65.1 0.2
Robbos 99 103 19.8 Yellow 60.0 0.8
Blaze 95 105 18.7 Red 57.1 0.5
Jamon 94 108 17.9 Orange 57.0 0.5
Geronimo 93 110 17.6 Orange * *
Kyros 92 104 18.4 Orange 58.0 0.9
Starmon 92 96 19.7 Yellow 56.7 0.9
Jauna 90 94 19.9 Orange 62.1 *
Lactimo 89 101 18.2 Orange * *
Feldherr 88 115 15.8 Orange 49.6 1.7
Brigadier 75 108 13.8 Orange 47.9 2.0

Data Source: Limagrain UK trials 1998-2019 (c) Control RT = Rhizomania tolerant *No data available Not all varieties tested every year Not all scores taken every year

Typical Yields and Feed Quality

Average dry matter yield = 15 – 18 tonnes/ha
Average fresh yields = 80 – 100 tonnes/ha
Dry matter = 15 – 24%
Crude protein = 12 – 13%
Digestibility value = 78%
Metabolisable energy = 12.5 – 13MJ/kg DM

The figures above relate to roots only. Leaves may also be fed after wilting and will contribute a further 3-4 tonnes of dry matter per hectare.
Data Source: Kingshay Forage Costings Report 2010

Typical Costs and Values

Total Cost
Cost per hectare £1460/ha
Cost per tonne fresh weight £16
Cost per tonne utilised dry matter £115
Relative value £/tonne DM £122
Cost per litre of milk 6.2p
Cost per kilo of live weight gain 34.3p

Sowing rates per hectare

Pelleted Seed Precision Drilled
3.50 – 4.75mm 100’000 seeds

Fertiliser Guidelines

SNS Index 0 1 2 3 4 5 6
Nitrogen (N) (kg/ha) 130 120 110 90 60 0 – 40 0
Phosphate (P₂O₅) (kg/ha) 110 80 50 0 0 0 0
Potash (K₂O) (kg/ha) 170 40 110 (-2) 80 (+2) 40 0 0 0

Data Source: DEFRA Fertiliser Manual (RB209)

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Kale Tehnical Aid

Trails Data

Variety Type Relative DM Yield % Relative Fresh Yield % DM Content % Leaf : Stem Ratio
(High = Leafy)
Height cm Digestibility Value % Winter Hardiness
(9 = Best)
100%=Tonnes/Ha 9.7 70.2
Caledonian CR Marrow stem 122 123 13.8 0.6 105 71.2 5
Bombardier CR NEW Marrow stem 118 121 13.5 0.5 102 72.2 5
Grampian CR Marrow stem 115 113 14.1 0.6 101 73.7 4
Pinfold © Intermediate 112 100 15.6 1.0 101 71.1 6
Bittern Intermediate 112 101 15.5 0.8 94 74.0 *
Voltage Intermediate 104 93 15.7 0.9 97 70.6 5
Keeper Short 104 92 15.7 1.2 85 74.2 5
Maris Kestrel Short 100 100 13.9 1.1 74 75.6 3
Thousand Head Older standard 100 83 16.6 1.2 99 70.1 *

Data Source: Limagrain UK trials & James Hutton Institute Trials 1991 – 2013 © Control Winter hardiness scored Jan 2011 Note: Not all varieties trialled every year, not all scores taken every year
* No data available CR: Club root tolerant

Typical Yields and Feed Quality

Average dry matter yield = 8 – 10 tonnes/ha
Average fresh yields = 60 – 70 tonnes/ha
Dry matter = 14 – 16%
Crude protein = 16 – 17%
Digestibility value = 70 – 75%
Metabolisable energy = 10 – 11 MJ/kg DM

Data Source: Kingshay Forage Costings Report 2010

Typical Costs and Values

Total Cost
Cost per hectare £496/ha
Cost per tonne fresh weight £7
Cost per tonne utilised dry matter £67
Relative value £/tonne DM £133
Cost per litre of milk 2.8p
Cost per kilo of live weight gain 18.8p

Sowing rates per hectare

Precision Drilled Direct Drilled Broadcast
2kg 4-5kg 8kg

Fertiliser Guidelines

SNS Index 0 1 2 3 4 5 6
Nitrogen (N) (kg/ha) 130 120 110 90 60 0 – 40 0
Phosphate (P₂O₅) (kg/ha) 110 80 50 0 0 0 0
Potash (K₂O) (kg/ha) 260 280 200 (-2) 170 (+2) 130 0 0 0

Data Source: DEFRA Fertiliser Manual (RB209)

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