CNUM3: Legume fallow (updated for SFI26)
What you must do to get paid for this SFI26 action and advice on how to do it.
This is a Sustainable Farming Incentive 2026 (SFI26) action. Read the SFI26 ²õ³¦³ó±ð³¾±ðÌý¾±²Ô´Ú´Ç°ù³¾²¹³Ù¾±´Ç²Ô tounderstand what you’re required to do under an SFI26 agreement and how to apply.
Select ‘See all updates’ at the start of this page to find out how this action has changed for SFI26 compared with SFI24.
For SFI24 actions, read theÌýSFI24 agreement holder’s information.
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3 years Ìý
How muchÌýyou’llÌýbe paidÌý
£532 per hectare (ha) per year Ìý
Action’s aimÌý
This action’s aim is thatÌýthere’sÌýan established legume fallow with plants that:  Ìý
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grow and flower from late spring and during the summer months Ìý
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provide green cover over the winter months Ìý
The purpose of this is to: Ìý
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manage nutrient efficiency and improved soil health Ìý
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provide food for farmland wildlife, such as pollen and nectar for pollinators and farmland birds Ìý
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support an integrated pest management approach by reducing grass weeds and, ifÌýlocatedÌýclose to cropped areas, encourage natural crop pest predators Ìý
Where you can do this actionÌý
You can do this action on agricultural landÌýlocatedÌýbelow the moorland line that’s: Ìý
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an eligible land type (as defined in sectionÌý5.1.1 ‘Eligible land types’ in the SFI26 scheme information)Ìý
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registered with an eligible land cover on your digital maps Ìý
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declared with a land useÌýcode which is compatible with the eligible land cover Ìý
Eligible landÌý
| Eligible land type | Eligible land cover | Compatible land use code | |
|---|---|---|---|
| Arable land used to grow crops | Arable land | Land use codes for ²¹°ù²¹²ú±ô±ðÌý³¦°ù´Ç±è²õ or leguminous and nitrogen-fixingÌýcrops | Ìý |
| Temporary grassland | Arable land | TG01 | Ìý |
| Arable land lying fallow | Arable land | FA01 | Ìý |
| Permanent crops – horticultural | Permanent crops | TC01 | Ìý |
Eligibility of protected landÌý
Sites of special scientific interest (SSSIs): Eligible – you must: Ìý
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give notice to NaturalÌýEngland to get SSSI consent before the Rural Payments Agency (RPA) offer you an SFI26 agreementÌý
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have received SSSI consent from Natural England before you do this action (readÌýsection 10.1Ìý‘SSSI consent’Ìýin the SFI26 scheme information for more details)Ìý
Historic and archaeological features: Eligible – you must get an SFI HEFER before you do this action (read sectionÌý5.3 ’Land with historic or archaeological features’ in the SFI26 scheme information to find out how to do this).Ìý
Available area you canÌýenter intoÌýthis actionÌý
Total or part of the available area in a land parcel. It’sÌýyour responsibility to check that the area you enter is eligible for this action.Ìý
You must do this action on the areaÌýentered intoÌýyour SFI26 agreement. If something happens which means you cannot complete this action on some orÌýall ofÌýthe area, you must tell the RPA in writing as soon as possible.ÌýRead section 12.2 ‘What to do if you cannot comply withÌýyourÌýagreement’Ìýin the SFI26 scheme information to find out how to do this.       Ìý
Rotational or static actionÌý
This action is rotational or static. This means you can either:  Ìý
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move its location for the second and third years of this action’s durationÌý
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do it at the same location each year of this action’s duration Ìý
What to doÌý
You mustÌýestablishÌýa legume fallow on landÌýentered intoÌýthis action.  Ìý
You must use a seed mix whichÌýcontainsÌýat least 6 flowering species, including legumes. The seed mix canÌýcontainÌýlegumes such as: Ìý
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alsike clover Ìý
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bird’s foot trefoil Ìý
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black medick Ìý
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common vetch Ìý
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lucerne Ìý
The seed mix can also include: Ìý
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non-legume flower species Ìý
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grasses, such as cocksfoot or timothy, which can help to control blackgrass Ìý
You must avoid growing deep rooted legumes, such as lucerne, on any area in a land parcel thatÌýcontainsÌýhistoric or archaeological features. These areÌýidentifiedÌýin your SFI HEFER. Ìý
Once the legume fallow isÌýestablishedÌý(usually from the second spring after sowing), you mustÌýmaintainÌýit. To do this, you must manage it in a way, and forÌýa period of time, that canÌýreasonably beÌýexpected to achieve this action’s aim. Ìý
You must not do the following on the established legume fallow: Ìý
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graze it with livestock – if you want to do this you may want to consider action CSAM3 (herbal leys) instead which allows grazing activity  Ìý
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use the area for regular vehicular access, turning or storage (for example, storing bales or machinery)Ìý
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cut it, except to prevent blackgrass from setting seed or to control other annual grass weeds Ìý
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apply any fertilisers and manures Ìý
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apply pesticides, except for herbicides to weed wipe or spot treat to control injuriousÌýweeds, invasive non-nativeÌýspecies, nettles or bracken Ìý
You canÌýmaintainÌýan existing legume fallow to get paid for this action if it:  Ìý
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meets this action’s requirements Ìý
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is not already being paid for under another environmental land management schemeÌýoption, such as CS option AB15 (two yearÌýsown legume fallow) Ìý
When to do itÌý
You must: Ìý
- establishÌýthe legume fallow by the autumn, within 12 months of this action’s start date Ìý
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maintainÌýthe legume fallow at the same location forÌýa period of timeÌýthat canÌýreasonably beÌýexpected to achieve this action’s aim – this will usually be until the end of the second summer after sowing Ìý
- re-establish the legume fallow by the following autumn (either at the same location or a different location) andÌýmaintainÌýit until this action’s end dateÌý
If you want toÌýestablishÌýa legume fallow in the spring and remove it in the summer during the same year, you should apply for the summer-sown cover crops action (SOH3). Ìý
How to do itÌý
It’sÌýup to you how you do this action, as long as you:  Ìý
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follow this action’s requirements – these areÌýidentifiedÌýby a ‘must’ Ìý
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do the action in a way that couldÌýreasonably beÌýexpected to achieve this action’s aim Ìý
You may find it helpful to read the ‘advice to help you do this action’,ÌýbutÌýit’sÌýnot part of this action’s requirements.Ìý
Evidence to keepÌý
You must keep evidence to show whatÌýyou’veÌýdone to complete this action, such as: Ìý
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field operations at a land parcel level and associated invoices, including details of the seed mix used Ìý
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photographs or other documentationÌý
IfÌýit’sÌýnot clear thatÌýyou’veÌýdone this action in a way that couldÌýreasonably beÌýexpected to achieve its aim, we may ask for this evidence. You must supply the evidence if we ask for it. Ìý
Other actions or options you can do on the same area as this actionÌý
You can do the following actions or options on the same area in a land parcel as this action.Ìý
| Scheme | Action orÌýoptionÌýcodes | |
|---|---|---|
| SFI 2026 actions | AGF1, AGF2, OFC3, OFC4, OFC5, OFM4, OFM5, OFM6, PRF2, SOH1 | Ìý |
| SFI 2024 actions | AGF1, AGF2, CIPM1, CNUM1, CSAM1, OFC3, OFC4, OFC5, OFM4, OFM5, OFM6, PRF2, SOH1 | Ìý |
| SFI 2023 actions | IPM1, NUM1, SAM1 | Ìý |
| CSHT actions from 2025 | CAGF1, CAGF2, CAGF3, CAGF4, CSP13, CSP14, CSP15, CSP20, CSP21, CSP9, CWS1, CWS3 | Ìý |
| CS options | OR3, OR4, OR5, OT3, OT4, OT5 | Ìý |
| ES options | No ES revenue options | Ìý |
If an action orÌýoptionÌýcannot beÌýlocatedÌýonÌýthe same area, you may be able to do itÌýonÌýa different area in the same land parcel. Read section 5.6 ‘LandÌýthat’sÌýalready in other funding schemes or grants’Ìýin the SFI26 scheme information for more details.   Ìý
You can do the following actions or options on the eligible boundaries of a land parcel entered into this action: Ìý
- SFI 2026 actions: CHRW2, BND1, BND2 and WBD2
- SFI 2024 actions: CHRW1, CHRW2, CHRW3, BND1, BND2 and WBD2Ìý
- SFI 2023 actions: HRW1, HRW2, HRW3  Ìý
- CSHT actions: CHRW4
- CS options: BE3 (management of hedgerows) 
Advice to help you do this action 
The following advice may help you to do this action, but it’s not part of this action’s requirements.  
Choosing a seed mix 
This action explains the minimum requirement for flowering species, including legumes, in the seed mix (under ‘What to do’).
Your seed supplier can help you choose a seed mix that’s the best match for your land and local conditions. 
Where to sow the seed mix 
When you establish the legume fallow, by law you cannot cultivate or apply fertilisers or pesticides to land within 2 metres (m) of the centre of a hedgerow. Read the guidance onÌýHedgerow management rules: buffer stripsÌýto understand how these rules apply to you.
When you sow the seed mix, it can help to use sites: 
- that receive plenty of sunlight, for better foraging habitat for pollinators and other beneficial insects 
- where you wish to control grass weeds, such as blackgrass 
- where soil health and compaction need improving 
- where you want to reduce soil run-off during winter 
- where you want to reduce your fertiliser use in the following crop 
Try to avoid sowing the seed mix on sites that are: 
- difficult to access and manage (like remote field corners) 
- known to contain rare arable wildflowers 
- known to support injurious and other broad-leaved weeds which can be difficult to control, such as common ragwort, creeping thistle, spear thistle, broad-leaved dock, curled dock 
Spreading the legume fallow areas across the farm can help to provide a network of habitats for farmland wildlife. 
How and when to sow the seed mix 
Your seed supplier can advise you on an overall sowing rate for the seed mix you choose. 
It can help the seeds to germinate if they’re sown: 
- into a consolidated seedbed that’s firm, fine, level and weed free 
- when the weather and soil moisture is best for the crops in your seed mix – this is usually spring or autumn, but it will be easier to control grass weeds in spring-sown fallows
You can either:
- broadcast the seeds onto the surface of the seedbed to help germination
- shallow-drill the seeds up to a depth of 1 centimetre (cm) – small seeds usually struggle to germinate when sown deeper than 1cm
After you have sown the seed mix (if the soil is dry enough), you can roll the seeds to: 
- improve seed-to-soil contact 
- keep moisture 
- reduce the risk of slug damage 
During establishment of the sown legume fallow  
In the first few months after sowing, it’s advisable to check the area for successful germination and pest damage.  
If establishment is poor, you may need to re-sow part or all the area. Your seed supplier can help you if you’re unsure what to do. 
Maintaining established areas of legume fallow  
Once the area is established, you can maintain it by managing it in a way that could reasonably be expected to achieve this action’s aim. 
During the first spring and summer after sowing, you can control annual grass weeds, such as blackgrass, by: 
- cutting as soon as it starts to produce seed heads 
- doing follow up cuts as necessary to remove further seed heads 
During the second year after sowing, you can control blackgrass by:
- cutting between March and mid-June
- leaving the area uncut for around 8 weeks between June and August – this will help to allow plants to flower for as long as possible to provide pollen and nectar for insects
Check the area for signs of nesting birds before you cut it.ÌýBirds, nests and eggs are protected by law, so if you see signs of nesting birds, delay cutting until the birds fledge 
Remove the cut vegetation (where possible) to limit weeds and reduce the risk of it smothering the flower species. If this is impractical, you can finely chop the vegetation to spread them as thinly as possible.
Updates to this page
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Added 'Advice to help you do this action' section.
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The payment rate has been reduced - this only applies to SFI26 agreements, not existing SFI23 or SFI24 agreements.
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The following changes have been made to this action for SFI26 (compared with the SFI24 version): • removed reference to SFI24 action SOH2: Multi-species spring-sown cover crop because SOH2 is not available for SFI26 – see ‘When to do it’ • minor updates to standard wording which appears in all area-based SFI actions – see ‘Eligibility of protected land’ and ‘Available area you can enter into this action’
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Added detail to explain how Hedgerow Regulations may affect how a farmer does an action, and signpost to detailed guidance on the Management of Hedgerows Regulations.
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OFM6 added to SFI 2024 actions.
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Where you can do this action - an eligible land type is defined in section 5.1 ‘Eligible land types for SFI’ in the SFI scheme information. Eligibility of protected land - updated link to section 10.3 ‘SSSI consent’ in the SFI scheme information. Rotational or static action - this action is rotational or static. Wording on new and existing legume fallow has been removed. What to do - storing bales or machinery added as an example of ‘storage’. When to do it - wording updated to reflect that this action is rotational or static for new and existing legume fallow.
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First published.