Tag: farming

The Fellfoot Forward Project: A Case Study

In December 2021, five farmers from the Fellfoot Forward Landscape Partnership participated in a carbon footprinting project in association with the Farm Carbon Toolkit. Based in proximity to the North Pennines AONB these five upland businesses demonstrated how livestock farming can work in conjunction with the wider landscape to produce quality food whilst providing environmental services such as water and air quality alongside carbon capture and storage. 

A carbon footprint, or carbon balance, is the measure of the total emissions and total sequestration associated with a particular business or product. For this project, the whole farm was measured to include all of the enterprises included within a farming business. When we discuss ‘carbon’ we are referring to ‘CO2e’ or ‘carbon dioxide equivalent’ which is a measure of the three main greenhouse gases carbon dioxide, nitrous oxide and methane. Different greenhouse gases have different dynamics within the atmosphere, consequently having higher or lower warming potentials and thus potency as a contributor to climate change. Therefore, ‘carbon’ as a term encapsulates all three of these gases under one metric so we can compare items such as fuel alongside the biological systems seen in livestock like for like.   

To produce a carbon footprint the farmers were asked to collect a variety of data associated with their business, including items such as fuel and water usage, livestock numbers and quantity of materials used for activities like silage wrapping or maintenance. Alongside these figures, it was also important to record the ‘natural capital’ of each farm holding – the resources found in the farmed environment which are managed as part of the business but provide wider ecosystem services and value – such as areas of woodland, length of hedgerows, soil organic matter and specific habitats such as floristically enhanced margins or wetlands. When all of these details had been recorded, the data was entered into the Farm Carbon Calculator to produce a carbon footprint detailing the balance of emissions and sequestration found at each farming business. 

For the farms included in the project action plans were created to highlight where emission savings can be made or sequestration opportunities maximised. All of the farms within the project were found to be likely to be able to reach a Net Zero, if not already in this position. A large factor on many farms to reach this target is proper accounting of carbon held within the soil as organic matter. For the Fellfoot Farmers who are in majority grassland systems, livestock can be utilised as a tool to increase organic matter in soils – either through grazing systems and the capture of sunlight to be stored as carbon, or through the return of manure to pasture for nutrient cycling. To fully account for the potential sequestration of carbon through the building of organic matter in soils regular testing should be conducted to measure and monitor the levels found in soils. If, like on many farms there has been no prior soil organic matter testing the best advice would be to select three or four key fields within the farmed area which are representative of the systems within the business. For example, if the farm was in a grass-based system, a field which is usually cut for silage, one only grazed and a traditional low-input or hay meadow would demonstrate potential underlying trends in organic matter across the landscape. Equally, if there is a range of soil types or diversity of land use on a single farm it would be perhaps useful to test fields representative of these features to better understand trends and consequently the best management approach to conserve existing carbon and build stocks in the future. As ever, when testing soils aim to minimise external variation by ensuring consistency in the laboratory used and the time of year when sampling.   

The project with the Fellfoot Forward farmers demonstrated the variety of approaches to upland livestock farming, from the number or type of stock to the management required to protect and enhance vulnerable habitats within their farmed area. Some of the farms included in the project had areas of peatland within their management, using cattle or sheep to maintain and conserve the landscape in association with government or local schemes to the benefit of the wildlife and ecology found there. Peatlands are a vast store of carbon and consequently, the condition of this landscape could greatly impact upon the land managers responsible for its status. More information is required to fully understand the dynamics of peat and how farmers can measure and monitor this landscape for not only carbon footprinting processes but also for generations to come. 

Carbon footprinting is a process that can be repeated on an annual basis, used as a monitoring tool for both the emissions and sequestration of a farming business but also to understand changes in management approach. There is a general underlying correlation between high carbon and high cost on many farms, with items such as fertiliser and blended livestock feed being both expensive and also a comparatively larger contributor of emissions. Therefore, conducting a carbon footprint not only has benefits towards understanding the environmental impact of a business but also can be used as a tool for resource optimisation and economic efficiency. 

Key findings

  • Conduct organic matter testing to understand the current carbon held within soils. Aim to repeat this testing every 3-5 years to understand whether your soils are sequestering (increasing in organic matter) or emitting (decreasing in organic matter) carbon. 
  • Account for things you are already doing such as hedge or tree planting that are under existing or future schemes.
  • Accept that you may not have all the data, aim to create a baseline from which you can repeat the process in future years and account for more information with more experience, time or understanding.
  • Identify ‘hotspots’ where emissions are highest. Except for cropping or livestock, are there particular items or categories which contribute a larger proportion of emissions than others, is there potential for reduction in these areas?

Scenario Planning In The Farm Carbon Calculator

At Farm Carbon Toolkit, we know that planning for the future is vital to any business. That’s why we’ve been working hard to create a more formalised system of scenario planning in our Farm Carbon Calculator. And today we’re excited to unveil the new beta version of this functionality, which will give growers and those in the supply chain key insight into the management of their business.

While it was previously possible to scenario plan in the Calculator, we’ve built brand new functionality that makes the entire process clearer and simpler to steer you towards achievable actions.

Scenario Planning In The Calculator

When planning for the future, it helps to be able to visualise the changes you want to make. Scenario planning can help you to plot a roadmap for your business, and see the impact that operational changes could have on your carbon emissions.

Here is a rundown of all the new scenario planning functionality in the Calculator, and how you can use it for key insights into your business.

Report Types

In order to make scenario planning easier and clearer, there is now a ‘report type’ option in the Calculator – which will make it clear if the report you’re looking at is a standard report, a test, or a scenario plan. It also helps us filter out scenario plans from our benchmarking datasets.

Creating Scenarios

There is now a ‘Scenarios’ button on the report results screen, which will bring up several options when you click it (see the screenshot below). When you’ve finished a report, use the ‘Scenarios’ button to start building your plan for reducing your footprint or explore how you could improve the sequestration potential of your farm.

Presets

Firstly, you’ll be able to choose preset scenarios that let you see the effect of changing business parameters. The presets are:

  • Reducing red diesel usage by 10%
  • Switching to a 100% renewable energy tariff
  • Reducing fertiliser usage by 10%

Selecting any or all of these options, and then clicking ‘Create Scenario’, will create a scenario based on the criteria you’ve chosen. You can also leave the presets blank, and just click ‘Create Scenario’, in order to build your own customised scenario plan building on the data you entered in your original report.

N.B. In time, we intend to make more preset options available – but the scenarios above represent fairly typical changes that many growers look to make, and so offer a useful starting point.

Editing Your Scenario Plan

Once you have created a scenario, you’ll need to click ‘Edit farm details’ on the report page so that you can edit the date your scenario plan applies to.

Setting the date is important for our timeline and comparison views, which you can use when you’re ready to see the effect of your scenario planning.

If you’re building a scenario yourself, or want to change some details on a preset, then simply click ‘Edit data’ in the report results screen. Here you can make any changes you want in the same way as in a standard report.

Comparing And Visualising Scenarios

There are two ways to access a report comparison – the first is through the ‘Scenarios’ button in the report results page – from here, you have ‘Scenario comparisons’ and ‘Scenario timeline’ options. These buttons will take you to the relevant comparison type – more on that below – for any scenarios associated with the report you’re working on.

Alternatively, you can also access comparisons by clicking ‘Dashboard’ and then selecting the ‘Comparisons’ sidebar button. From here, you’ll need to select the reports you want to compare – note that linked reports and scenarios appear next to each other automatically. Finally, select either the ‘Timeline’ or ‘Compare’ option – we’ll dive into what each of these options mean next.

Comparison Types – ‘Timeline’ And ‘Compare’

Our Timeline and Compare views offer two different ways of visualising your data. In the simplest terms, ‘Compare’ shows you key metrics and KPIs in a tabular format, while ‘Timeline’ shows your progress over time and towards a net zero target date (2050 by default).

If you want a detailed, granular view of your business, emissions and sequestration, then it’s best to use the Compare view. If you are looking for an overview and direction of travel, you’ll probably prefer the Timeline view.

Click through the image gallery below to see some examples of the ‘Compare’ view data.

And below are some examples of what the ‘Timeline’ view will show you.

Future Development

We’re excited to see how scenario planning will help businesses to reduce emissions and achieve their targets. Looking forward, in 2024 we’ll continue developing the Calculator, and as always our focus will be on helping farmers and businesses both track and reduce their carbon footprint.

You can always get in touch with us to find out more or let us know what you need from the Farm Carbon Calculator [email protected].

Carbon Farmer of the Year Farm Walk at Durie Farms – November 2023

The 21st November 2023 came in as a bright and sunny day, in stark contrast to the near constant rain which had fallen for the previous weeks.

The occasion was the farm walk for FCT’s Carbon Farmer of the Year Competition on the winner’s farm – Doug Christie of Durie Farms, Fife. Durie Farms is a mixed farm combining arable and cattle enterprises, organic and non-organic as well as woodland.

Liz Bowles (Left) CEO of Farm Carbon Toolkit welcoming people to the farm walk

Before we set out on the walk, Doug introduced his farm and explained some of the practices he has adopted which earned him the title of Carbon Farmer of the Year.

Fundamentals include the incorporation of conservation agriculture (minimum till cultivations and more complex arable rotations including peas and legumes within the rotation as standard) and the integration of extensively managed cattle within the whole farm. Central to this has been regular soil analysis with records going back to 2006. These records include soil organic matter which means that Doug is able to track soil carbon changes over time too. Unusually for the time, Doug also measured soil bulk density  which makes carbon stocks estimates more accurate. Alongside measuring soil carbon stocks, Doug also keeps enterprise fuel allocation records which has allowed him to have a much better understanding of hot spot areas. Through doing this he was able to identify the high fuel usage associated with housing cattle in the winter. This knowledge together with his adoption of holistic grazing practices has enabled him to keep cattle out longer,  with some groups of cattle e.g. in calf heifers now not being housed at all.

Our first stop on the farm walk was the large heap of brushwood next to the farm lane (a result of woodland management) and a question posed to the walkers as to how best to deal with this. Burning the pile would release a lot of carbon dioxide, but would that be less than chipping the pile and then burning it as a fuel? Or what about leaving it to break down naturally and possibly combine with farmyard manure and use as a soil amendment?  Now we are starting to look at these things through a number of lenses, these are the sort of questions farmers are increasingly grappling with.

The first field we entered was growing a cover crop, established in mid – late August after a cereal crop.

Doug Christie  (on the right, spade in hand) describing the cover crop

Doug now makes up his own cover crop mixes using farm saved seeds when possible. The cover crop had really motored on since early September and was providing pretty good canopy cover, in flower and up to waist height.  This cover crop will be holding nutrients in the soil, keeping living roots in place and improving soil structure through the varied rooting depths of the different plants in the cover crop.  Doug puts cover crops in place wherever possible and, for cereal harvesting, uses a stripper header leaving straw to rot down and provide food for earthworms. This was evident when inspecting a soil pit where the number of worms was high – worms everywhere. In fact this field which had been harvested with a stripper header, and had been undersown with a grass clover mix, with cattle having been mob grazed across it a few weeks earlier. The cattle had removed some of the straw and helped to break down the rest, and on the day of the farm walk it was clear that the grass clover sward was coming away nicely. Testament to the improving soil health at Durie Farms is the fact that Doug sold his subsoiler some years ago- surplus to requirements!

Doug shared with the group that he has not used insecticides since 2003 and is now working closely with the James Hutton Institute to carry out research on his farm. He has a fantastic site to investigate the impacts of this decision on insect life on the farm.

Arriving at the in calf heifers as we walked across the farm, it was clear they were wondering if it was time to make their move for the day. 

In calf heifers curious to know what we were talking about

Donald Christie, Doug’s son commented that since moving to holistic grazing and generally daily moves the cattle have become much more biddable, and in the move to outdoor wintering the challenge has been to make sure that this group do not carry too much weight as they approach calving. They receive no supplementary feeding when on grass.  One of the group commented that since adopting holistic grazing cattle health has improved and that the growth rate of outwintered animals surpassed that of housed cattle the following spring.

The group asked Doug what he is doing to reduce his reliance on artificial N fertilisers, one of the hot spots for arable farmers. Through improving soil health and bringing pulses and legumes into his cropping rotation Doug has reduced his reliance on granular urea by 30% since 2009. Yields have gone down but net margin is up. When choosing inputs such as fertiliser it is worth noting that different branded products, produced in different parts of the world, may have very different emissions factors. At Farm Carbon Toolkit, we offer Calculator users the ability to choose the product they have used so an accurate figure for emissions will be included.

The group also tackled the topic of cattle and methane, with an acknowledgement of how complex this topic is. The box below discusses the reasons for looking at a better mechanism for accounting for methane, one of the shortest lived greenhouse gases and one which is produced by ruminants as an intrinsic function of rumen function. 

What is becoming clearer is that how cattle are managed will have an impact on their overall impacts on our environment. Certainly Doug is minimising their negative impacts, through minimising their consumption of foods which could be eaten by humans directly, minimising their use of other sources of emissions such as fertiliser and fuel and making sure that their grazing activity has a positive impact on the soils they stand on and sequestering as much carbon as possible in their wake.

Accounting for methane: GWP* and GWP100
GWP (Global Warming Potential) is a measure of how much impact a gas will have on warming the atmosphere. The most common method to evaluate the effect of different greenhouse gases (GHGs) is by comparing them over a 100-year lifetime; this is known as GWP100. This is the internationally agreed metric chosen under the Paris Agreement and the primary tool for emission reduction targets globally. 

Using GWP, it’s possible to compare the impact of different GHGs by converting them to their carbon dioxide equivalent (CO2e) value. The latest research suggests that using GWP100, biogenic methane emissions are 27 times more powerful than CO2; and nitrous oxide (N2O) emissions are 273 times more powerful. However, unlike CO2 and N2O gases that last for hundreds of years in the atmosphere, methane only lasts for an average of 12 years after which most of it is broken down. This means that using GWP100, the impacts of methane could be considered overestimated in the long-term, and underestimated in the short term. 

In an aim to better account for methane, in 2016, a team of researchers proposed a new metric, known as GWP* that works over a 20 year period. Over a 20 year period, emitting a tonne of methane today has 80 times more temperature impact than carbon dioxide. However, the new metric is also designed to reflect the warming impact of ongoing emissions of methane in relation to the current levels of that gas in the atmosphere. The theory is that, over time, ongoing emissions are not adding warming to the atmosphere, but merely replacing old emissions that have degraded. Essentially, GWP* focuses on changes in emissions rather than absolute emissions. This accounting approach has been gathering support within UK agriculture sector, however it does also face some criticism (example).

As we turned for home, and the beckoning hot drinks and cakes, conversation turned to reducing the negative impacts of growing potatoes and the potential for woodland to sequester carbon into trees. On the topic of reducing the harms associated with growing potatoes there is a clear role for keeping living roots in the soil for as much of the year as possible, but to date no alternative has been found to the punishing soil management routine required to grow potatoes, although research is underway.

Liz explaining to the group how woodland is accounted for in the Farm Carbon Calculator

Doug has 50ha of woodland across the farm, with different areas having been in place from 10 -240 years. As his summary carbon footprint report shows, the woodland at Durie Farms alongside soil carbon sequestration offset the business GHG emissions last year. Of the total sequestration, woodland contributed around 50%. It is worth noting that the carbon sequestration associated with woodland depends on the growth rate of the tree. The Woodland Carbon Code has developed “look up tables” for this which the Farm Carbon Calculator  has incorporated into the sequestration area of the Calculator. For users, providing accurate information on the age of the trees as well as their varieties will enable a more accurate assessment of the scale of sequestration to be given. A rule of thumb is that most trees sequester only small amounts of carbon for the first decade or so of life. From the age of around 15 – 30 years carbon sequestration is at its maximum. After that age growth tends to slow down and with it carbon sequestration.

Doug is continually trying new ideas, with pasture cropping a new initiative he has ‘frustratingly’ tried this year. Doug’s long term membership of BASE UK  has supported him in his quest for adopting new and more sustainable farming practices. A quick look at the BASE UK website revealed a number  of fascinating events coming up in the next month including this one:

14/12/23 BASE-UK Member Nick Wall will present his review of the study tour recently taken by 15 members to visit Frederic Thomas and other BASE France members in November 2023 – it wasn’t all good food and drink – there was some learning involved! 

Back in the cattle yard (not in use yet) we finished with a round up of questions, answers and general discussion.

Thank you to our hosts, the Christie Family, for a memorable farm walk and great hospitality.

Agroforestry Show

Apples

The scorching September sunshine in Wiltshire at the Agroforestry Show was a good reminder of just how important trees are to us humans and to livestock, providing shade, a different microclimate and more water cycling. Hosts Helen Browning and Ben Raskin showed the extensive field scale alley cropping that intercrops trees, crops and livestock. As Helen said “ever since planting these trees the whole field has felt more alive”.

Agroforestry Show

The trees are not only providing benefits in hot weather, but also reducing wind speed, increasing biodiversity and habitat, sequestering carbon and slowing down water in the landscape. But furthermore they are providing extra income opportunities for farmers and growers – such as fruit, timber, woodchip, nuts, and sticks for the future, along with potential ELMS payments.

Alley crops

The event was very much about spreading and sharing knowledge and insight, with a wide range of presentations and discussions. So much discussion was clearly being had amongst people with an interest in agroforestry in a way that only these sorts of events in person can really do. Businesses displaying at the event were as diverse as fruit tree nurseries, wood processing, banks, advisory, nature charities and many more; an indication of just how wide a range of people have an interest in the growth and continued success of agroforestry.

Sea buckthorn

At FCT we had many discussions with attendees about carbon footprinting, and especially carbon sequestration in soils and perennial crops. We believe the Calculator and Advisory work we do really compliments the aims of agroforestry and look forward to more discussions on this subject with farmers and growers in the future.

One of the actions we will certainly take away is to deepen our understanding of the carbon sequestration benefits of Agroforestry systems, and to reflect that in terms of options in the Farm Carbon Calculator.

Becky talking

Farming Focus podcast – Becky Willson and Mike Roberts

Our very own Becky Willson features on the Cornish Mutual podcast Farming Focus.

Farming Focus’ – the new farming podcast for Cornish Mutual Members and the wider farming community was recently launched.

Farming Focus aims to bring its listeners the latest on what really matters to farmers. Featuring industry experts and farming professionals, it expects to kickstart conversations across the South West and give farmers the knowledge and solutions to face today’s demands in agriculture.

The first 10-episode series of the fortnightly podcast will focus on resilience with host and Cornish Farmer Peter Green chatting to guests about how South West farming businesses can be resilient for the future. They’ll explore everything from soil to rural crime, policy to future markets and farm safety to animal disease. 

Becky Willson features in episode 6 – How can South West farmers reduce emissions and be more climate resilient?

Continuing their series on resilience, this episode looks at climate resilience. Becky explains why farmers are in the unique position of being able to reduce emissions while increasing carbon capture with Wadebridge farmer Mike Roberts explaining the gains he’s seeing from the changes he’s made. Mike Roberts is one of the Farm Net Zero demo farmers, find out more here.

Mike went from using over three artic loads of fertiliser a year to none in his pursuit of climate resilience. Hear how he’s done it in Episode 6 where he discusses the practical ways farmers can ‘stack up the gains’ to achieve resilience and balance.

To listen:

You can listen to all episodes here

Press release: 2023 SFOTY winners announced!

Now in its eighth year, the annual Soil Farmer of the Year competition is organised by the Farm Carbon Toolkit in partnership with Innovation for Agriculture and, this year, generously sponsored by Hutchinsons and Cotswold Seeds.

The competition aims to find farmers and growers who are engaged with, and passionate about managing their soils in a way which supports productive agriculture, reduces greenhouse gas emissions, and builds soil health, organic matter and carbon.

The 2023 Soil Farmer of the Year Winners:

  • 1st Place – Stuart Johnson, West Wharmley Farm, Hexham (pictured above right)
  • 2nd Place – Richard Anthony, R&L Anthony Ltd, Bridgend (pictured above, centre)
  • 3rd Place – Bronagh O’Kane, Drumard Farm, Cookstown (pictured above, left)

The 2023 Soil Farmer of the Year Finalists:

  • 🚜 Debbie Wilkins, Norton Court Farm, Gloucestershire
  • 🚜 Ed Horton, Poulton fields Farm, Gloucestershire
  • 🚜 Andrew Jackson, Holme Hall Farm, Lincolnshire

The 2023 Soil Farmer of the Year Highly Commended:

  • 🚜 Robert Neave, Lincolnshire
  • 🚜 Jonathan Hodgson, East Yorkshire
  • 🚜 John Sansone, Worcestershire
  • 🚜 William Oliver, Leicestershire

SFOTY farm walks – save the dates!

As part of the competition, the top three farmers will host open farm walks that bring farmers together to share good practice and innovations that improve soil health. The farm walks at the top three winning farms are scheduled to take place later in the year, with full details to be announced on the Farm Carbon Toolkit website and twitter, with booking through Eventbrite.

  • 🥾 4th October 2023 – Stuart Johnson, Hexham
  • 🥾 11th October 2023 – Bronagh O’Kane, Cookstown
  • 🥾 TBC – Richard Antony, Bridgend

The competition is widely recognised by organisations working in soil management, with many promoting it to their networks to increase participation.

Emma Adams, Farm Carbon and Soil Advisor with Farm Carbon Toolkit, says 

“This year’s Soil Farmer of the Year competition saw the most diverse range of applications so far, we’ve been blown away by the number and quality of the entries this year. The competition is going from strength to strength, with the standard of farms continuing to demonstrate the progress made in UK agriculture. Indeed, the sheer variety of entries highlights the fact that, despite the many differences in farming systems and locations, the soil connects us all. We’re very grateful to everyone who took the time and effort to enter.”

Deborah Crossan, Innovation for Agriculture, says

“As the Soil Farmer of the Year competition gains momentum and the numbers of entries reach their highest level so far, the summer walks at the winning farms represent a not-to-be-missed opportunity for farmers to see first-hand the innovation and change that leads to excellent soil management.“

The judging process now involves visiting each of the six finalists to learn more about their farming practices before selecting the winners.

The winners of the 2023 competition were announced at Groundswell: The Regenerative Agriculture Show and Conference, which runs from 28th – 29th June 2023 at Lannock Manor Farm, Hertfordshire. 

Open farm walks at the top three winning farms are scheduled to take place later in the year, with details to be announced on the Farm Carbon Toolkit website and twitter.

Further details:

For further details about the 2023 Soil Farmer of the Year competition, contact Emma Adams, Senior Advisor with the Farm Carbon Toolkit, at [email protected]

For more information, visit farmcarbontoolkit.org.uk/soil-farmer-of-the-year

2023 SOIL FARMER OF THE YEAR FINALISTS ANNOUNCED!

It was very hard work, but we have shortlisted six farmers as finalists for the 2023 Soil Farmer of the Year competition!

Organised by the Farm Carbon Toolkit and Innovation for Agriculture — and generously sponsored by Hutchinsons and Cotswold Seeds — the Soil Farmer of the Year Competition helps to identify, promote, and champion UK farmers who are passionate about safeguarding their soils and building resilient businesses.

This year we had so many wonderful entries that we have decided to award ‘Highly Commended’ to those farmers and growers who impressed the judges, but unfortunately didn’t quite make the shortlist. Well done to them all!

We really are grateful to everyone who took the time and effort to enter and who helped make this such a difficult competition to judge, as well as to our kind sponsors.

The 2023 Soil Farmer of the Year Finalists:

  • 🚜 Richard Antony, R&L Anthony Ltd, Bridgend
  • 🚜 Debbie Wilkins, Norton Court Farm, Gloucestershire
  • 🚜 Ed Horton, Poulton fields Farm, Gloucestershire
  • 🚜 Stuart Johnson, West Wharmley Farm, Hexham
  • 🚜 Andrew Jackson, Holme Hall Farm, Lincolnshire
  • 🚜 Bronagh O’Kane, Drumard Farm, Cookstown

Highly Commended:

  • Jonathan Hodgson, Great Newsome Farm, East Yorkshire
  • John Sansome, Woodfield Farm, Worcestershire
  • Will Oliver, Swepstone Fields Farm, Leicestershire
  • Robert Neave, The Manor, Lincolnshire

The judges have already started visiting the finalists this week to learn more about their farming practices and we’ll announce the winners at a special event at the Groundswell Show and Conference at 5.30pm on 28 June 2023.

The winning farms will also host open farm walks later in the year, bringing farmers together to share best practice and innovations that improve soil health.

Stay tuned for more info!

Carbon Farmer of the Year competition -update

Earlier this year we at the Farm Carbon Toolkit launched our Carbon Farmer of the Year (CFOTY) competition. With this competition we will be recognising and championing farmers, sector organisations and businesses who are leading the way in adopting farming practices and developing new technologies which are helping to reduce farm emissions whilst optimising output. 

Back in 2015 we launched our Soil Farmer of the Year (SFOTY) competition which recognises those farmers who are going above and beyond to support improved soil health on their farms and to showcase all the good things which flow from that enhanced soil quality. This competition has been highly successful at celebrating incredibly forward thinking farmers and through it we have been able to share their methods, spreading their knowledge and normalising practices that may have previously seemed intangible to many farmers. The approaches these farmers have been demonstrating through the highly popular SFOTY farm walks have been a great opportunity to show to others that increasing soil health to safeguard our soils for future generations and future food production can be achieved whilst maintaining profit and production. 

We are confident that our new Carbon Farmer of the Year competition will do the same as the SFOTY, but with a focus on carbon reduction and carbon sequestration.

We are looking for those farmers and other businesses who are doing great things to reduce farm emissions and to store carbon in soil and non-crop biomass within resilient, biodiverse businesses. We believe the more we celebrate and recognise those farmers that are leading the way with regards to reducing emissions, increasing carbon capture and minimising reliance on imported energy the more we can spread this knowledge, create a new norm and share best practice across the industry. 

All the details to make nominations/apply and the entry form are available on our website here. Or you can go straight to the nomination/application form here.

Entries close on the 4th July and we will be announcing the winners at our annual Farm Carbon Toolkit Field Day on the 21st September.

Please note – the Soil Farmer of the Year competition will still be running alongside this new competition, and as always we will be announcing the winners at Groundswell in late June. 

Farm Carbon Calculator update May 2023

Farm Carbon Calculator logo

This month we have launched further improvements to our Farm Carbon Calculator that enables farmers and growers to measure and understand the carbon footprint of their business.

In this upgrade there are a large number of improvements to the data and calculations that underpin the tool. This means we are up-to-date with the latest science and correspondingly your carbon reports are more accurate. We constantly aim to be reflecting the most recent emissions factors. In this upgrade we have updated factors and calculations in:

  • Livestock (including new category descriptions)
  • Fuels
  • Distribution
  • Materials
  • Processing

In addition, we’ve re-ordered and updated the list of sprays, as well as a new sub-section for molluscicides. Some additional mineral amendments and specific fertilisers have been added too.

Animal feeds are a very important issue, and the impact of feeds on the footprint of livestock farms can be very significant. We’re constantly trying to improve the information available in this area and have expanded the number of items on offer. This is a continual topic of research for us.

There are some changes to how users select a report date, so that a start and end date is required (for the 12 months of the report). This is due to how our database works, which is a hidden but important area of the improvements we’ve made.

Renewable energy exports now don’t show up as a carbon offset, in line with scoping guidance provided by GHG Protocol, which is a globally recognised carbon standards organisation.

Details of all the changes can be found here, including a list of sources of our emissions factors.

Next stages

Months of research, development and testing by the Calculator team have led to this point. We are proud of what we’ve achieved, and see it as a vital improvement for users. But, more excitingly, the development continues as part of the two projects that are going to radically improve the user experience of the Calculator. This first stage of these feature upgrades will be launched in early September.

The Tesco-WWF funded work, in partnership with Produce World, focuses on improving the user experience, building infrastructure to allow carbon data to flow through the supply chain, with improved benchmarking and target setting for users, and an international version.

A parallel Innovate UK funded project, in partnership with Velcourt, CHAP and Agrimetrics, will strengthen many of the above developments, as well as enabling better data flow into and out of the Calculator. This stage of the feature upgrades will be completed at the end of December.

These are hugely exciting developments for the Farm Carbon Calculator, so expect to see much more activity from us in coming months and, importantly, a much improved tool for our users. Alongside our project partners, we are supporting the food and farming sector to cut carbon emissions and reach beyond net zero.

Resources

There are a range of resources for users of the Calculator on this page https://calculator.farmcarbontoolkit.org.uk/resources, including the popular Data Collection Spreadsheet which gives guidance on how to complete data collection and the process of completing the report.

There are also useful FAQs and a ‘how to’ video on the Calculator homepage. You can also login to access your reports here, or set up a new account if you’re new to the Calculator https://calculator.farmcarbontoolkit.org.uk/

Methane Capture from Slurry

A Farm Net Zero (FNZ) event held in March 2023, Trenance.

Methane emissions from livestock make up a large part of a farm’s carbon footprint, capturing and processing these emissions can help to reduce the carbon footprint. Farm Net Zero Monitor Farmers, Katie and Kevin Hoare, milk 120 cows on a 130-acre Cornwall Council holding which required investment to improve slurry storage. They have worked with Cornish company Bennamann as part of a pilot with Cornwall Council to install a covered slurry lagoon that captures and processes methane gas for use as a fuel. A group of farmers met to learn more about the system, with talks from Dr. Chris Mann, co-founder of Bennamann, and George Mills, Area Sales Manager at New Holland who supply methane-powered tractors. This event was made possible with thanks to the National Lottery Community Fund who fund the Farm Net Zero project.

Chris Mann explained how the Bennamann system works, and how it can allow slurry pits to become mini power stations. Slurry is scraped into a reception pit where it is macerated to enhance breakdown and then into a well-insulated lagoon where microbial activity produces methane and other gases, as it does in an uncovered pit. The gases are collected by the cover, processed in a shipping container-sized plant unit with the cleaned methane pumped into another reception chamber sitting above the slurry pit. This processed methane can then be bottled and used as fuel in New Holland’s methane-powered tractor, or in a Bennamann methane-powered generator to provide electricity either for on-farm use or sold to the grid. 

George Mills showed the group around New Holland’s methane-powered tractor. Currently, this is able to do four hours of work on a single tank, with a range-extending fuel tank/front weight increasing this to twelve hours. Although slightly more expensive than a diesel tractor, the ability to run on home-produced gas can mean it is cheaper to run in the long-term by avoiding fluctuating fuel prices. Plus, the reduction in diesel use can have major benefits to reducing the farm’s carbon footprint.

Kevin and Katie say the covered and processed slurry is a better product to use as it is almost like digestate, allowing them to apply it with a trailing shoe between grazings and reduce the amount of artificial fertiliser they require. They are now able to meet all the grassland’s P and K needs from slurry, which has clear financial benefits and also helps their carbon footprint by reducing demand for carbon-intensive artificial fertiliser. A grass yield trial is in development to quantify the benefits of the new slurry.

The ultimate aim for Trenance is to go off-grid, with the methane capture system providing all the fuel for machinery and electricity. Katie and Kevin are keen advocates for agriculture’s role in providing climate change solutions and feel it is important for farmers to tell their story to the public to demonstrate their commitment to the environment. Using the Farm Carbon Calculator for Trenance through the Farm Net Zero project shows that the new slurry store is capturing around 600 tonnes of CO₂e from methane, putting the overall carbon footprint at 0.13 kg of CO₂e per kg Fat- and Protein-Corrected Milk (FPCM).

Key takeaways:

  • Methane capture from slurry reduces the farm’s carbon footprint by preventing methane entering the atmosphere
  • Using processed methane as fuel also reduces emissions from red diesel and electricity use
  • The methane capture system has financial benefits through reductions in fuel/electricity purchases, the option to sell gas and the ability to use slurry more effectively and replace bought-in fertiliser.

Farm Net Zero resources, events, newsletter

  • To find out more about other previous events, trials and resources produced from the Farm Net Zero project head here.
  • To keep an eye out for future Farm Net Zero events head to our events webpage here.
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