Farming
How improving soil health will reduce farmland weed burdens
BALANCING soil nutrient levels by applying calcium to farmland could help farmers reduce weed populations and their synthetic fertiliser and chemical use.
In common with many farmers, lamb and egg producers Ben Anthony and Diana Fairclough face a perpetual battle to control thistles, docks, nettles and other common weeds on their 73-hectare farm in Carmarthenshire.
When they recently hosted a Farming Connect event led by agronomist Daniel Lievesley, he suggested that an incorrect balance of soil nutrients could be a reason for those annual weed burdens at Frowen Farm, Login, where lamb is produced from 370 breeding ewes, and eggs from free range hens.
Getting soil analysed should be a first step to addressing weed issues, advised Daniel from DJL Agriculture.
Weeds are not only problems to be dealt with but indicators of issues in soil balance, he pointed out.
“Weeds establish where there’s a nutrient deficiency. For example, docks mine for calcium, so if you address the calcium deficiency, you take away the very reason for the docks to be there.
“You will often find that the forage that grows around a weed is high in nutrients because the weed tap roots draw up minerals from deep in the soil to feed it.”
Daniel warned farmers against focusing solely on chemicals to control weeds, recommending that they address the nutritional function in their soils.
At Frowen, for example, soil sampling shows that the clay soils have a high iron content, locking up phosphorous and zinc.
Introducing air into the soil with aeration is a means of addressing this, but so too is rectifying the mineral imbalances.
Common farmland weeds like nettles, chickweed and fat hen are indicators of high nitrates, for example, while low calcium levels encourage docks and thistles.
When calcium levels are low, Daniel advocates applying gypsum as a means of changing cations in the soil, supplying calcium to replace some of the magnesium bound by soil particles, particularly in clay soils.
The calcium:magnesium ratio on a soil analysis report should ideally sit at around 8:1; any less and the calcium deficiency needs to be addressed to prevent weeds taking hold.
“Mined gypsum is a wonderful way to apply calcium sulphate to release the magnesium into the soil,” said Daniel.
Gypsum is best applied when there is rain in the weather forecast.
Daniel specifies use of naturally-mined gypsum, not reclaimed plasterboard which contains resins, glues, and heavy metals which present issues for livestock.
At current prices, gypsum comes at a cost of £20–£32/tonne, depending on a farm’s proximity to a quarry, and a further £5–£10/acre spreading charge.
Calcium is closely linked with mycorrhizal fungi soil interactions too, which again keeps weeds at bay.
Integrating trees into agricultural systems can also reduce weed burdens.
They do this by creating shade to deprive weeds of light, by competing for resources in the soil, and through the weed-suppressing mulch effect of leaf litter.
Farming Connect’s Forestry Specialist, Geraint Jones, a speaker at the event, explained that trees improved soil health, keeping weeds at bay, and that they establish physical barriers against the spreading of weed seeds.
Tree and hedgerow root systems draw nutrients from deeper soil layers and these are circulated within the ecosystem, contributing to overall soil health and significantly adding to the soil’s carbon content through storing carbon in roots and the decomposition of root biomass and leaf litter.
“Many tree species form symbiotic relationships with mycorrhizal fungi in the soil,” Geraint told farmers.
“These fungi extend the reach of the tree’s root system, significantly increasing the surface area for nutrient and water absorption that they mine from deeper layers.”
In exchange, the tree provides the fungi with carbohydrates.
These fungal networks also connect different plants, potentially facilitating nutrient transfer between them.
The last event of this series will be held on Thursday, 22 May 2025 (16:00–18:00) at Plas Du, Oswestry SY10 0BQ. To book on to this event or for more information, visit the Farming Connect website.
Farming
Performance recording transforms hill flock at Llysfasi college farm
A WELSH college farm is successfully lambing triplet-bearing ewes outdoors on exposed hill ground after introducing genetic performance recording to strengthen maternal traits and flock resilience.
At Coleg Cambria Llysfasi, near Ruthin, a flock of 120 pure Welsh Mountain ewes grazes land rising between 1,000 and 1,300 feet above sea level, where winter conditions can be harsh and only the hardiest sheep thrive.
Since joining the Farming Connect Welsh Sheep Genetics Programme in 2023, the farm has used Estimated Breeding Values (EBVs) to target improvements in maternal ability, growth rates and overall performance. Although genetic gains are often gradual, staff say results are already clear just three years into the scheme.
Historically, ewes carrying triplets were lambed indoors, adding labour and cost. Now, improved maternal strength means they can lamb outside with minimal intervention.

“The ewes are holding their body condition better, we haven’t had any problems lambing them outdoors and they keep their lambs very well,” said shepherd Alun Jones. “We’re seeing fewer losses and far less hands-on work. In the 2025 season we only assisted two ewes out of 120.”
The wider system runs 600 ewes, including Welsh Mountains crossed with Abertex to produce mule ewe lambs, and mules crossed with Beltex or Texel rams for finishing lamb production. Plans to phase out the Welsh Mountain breed were reversed after recognising its value for hardiness and mothering ability in upland conditions.
Performance recording began in autumn 2023 with tissue samples, body condition scoring and regular weighing to create a reliable data baseline.
“Before, we were judging by eye,” said Mr Jones. “Now we’ve got hard evidence to guide decisions.”
By identifying and removing the bottom 20 per cent of performers, the flock’s overall index has risen from £13 to £16.24 — a significant lift in commercial potential.
Lambs are currently creep-fed and sold from November to January at 38–42kg liveweight, with a longer-term aim to finish earlier and reduce concentrate use.
Farm manager Dewi Jones said the data has also changed how they buy rams.
“When you’re at a sale and you’ve got the indexes in front of you, you can draw a red line through the animals that don’t stack up. Type still matters, but figures matter just as much. Data gives you confidence in your choices.”
Some home-bred ram lambs are now matching the performance of sale-topping sires, creating opportunities to retain or market their own breeding stock.
Mr Jones believes the sheep sector could benefit from taking a more data-driven approach, similar to dairying.
“If we don’t measure, we can’t improve. Recording takes time, but the rewards are there. It’s about working smarter and building a more resilient flock for the future.”
Shepherd Alun Jones with Welsh Mountain ewes at Llysfasi.
Performance recording and weighing form a key part of the improvement programme.
Business
Langdon Mill Farm Pembrokeshire expansion signed off
THE FINAL sign-off for plans for a heifer accommodation building and associated works at one of Pembrokeshire’s largest dairy farms, with a milking herd of 2,000 cows, have been given the go-ahead.
In an application backed by councillors at the December meeting of Pembrokeshire County Council’s planning committee, Hugh James of Langdon Mill Farms Ltd sought permission for a 160-metre-long heifer accommodation building, a slurry separation/dewatering building and associated yard areas at 1,215-hectare Langdon Mill Farm, near Jeffreyston, Kilgetty.
A supporting statement through agent Reading Agricultural Consultants said: “The holding currently has a milking herd of approximately 2,000 cows, which are housed indoors for the majority of the year, with dry cows and heifers grazed outdoors when weather and soil conditions permit.

“There has been significant investment in buildings and infrastructure at the farm over the last decade in respect of cattle accommodation, slurry storage, milking facilities, Anaerobic Digestion (AD) plant, feed storage. Recently a calf and weaned calf accommodation buildings were approved by Pembrokeshire County Council with construction almost complete.
“The unit is efficient, achieving yields of more than 10,000 litres/cow/year, with cows being milked three times/day in the 60-point rotary parlour. Langdon Mill Farm currently directly employs 21 full-time, and three part-time staff. Of these, four live on site in the two dwellings opposite the farm, with the remaining staff living in the locality.”
It added: “Although the unit has previously purchased heifers to aid expansion, the farm now breeds most of its own replacements to improve genetics and to minimise the ongoing threat of bovine tuberculosis (bTB).”
It said the proposed building would be used by heifers between the ages of 7-22 months, the siting “directly influenced by the adjacent calf and weaned calf buildings, with livestock being moved from one building to the next as they get older”.
Members unanimously supported the recommendation of approval, giving delegated powers to the interim head of planning to approve the application following the final approval of a habitats regulations assessment.
An officer report published yesterday, February 5, said Natural Resources Wales confirmed it had received the assessment, and, “in consideration of the mitigation measures detailed and on the understanding there is no increase in stock, they agree with the LPA’s conclusion that an adverse effect upon the integrity of the SAC [Special Areas of Conservation] sites can be ruled out”.
Formal delegated approval has now been granted by officers.
Farming
Forgotten meats tipped as future ‘superfood’ comeback
SO-CALLED “forgotten meats” such as liver, heart and kidneys could soon find their way back onto dinner plates, with scientists suggesting they may offer a cheap, sustainable and highly nutritious alternative to modern ultra-processed foods.
Offal was once a staple of everyday diets across the UK, particularly in working-class households, but has steadily fallen out of favour in recent decades despite being rich in iron, protein and essential vitamins.
Now researchers at Aberystwyth University are working with Hybu Cig Cymru (HCC) to understand why demand has dropped and whether these cuts could be repositioned as affordable “superfoods”.
Scientists say that when nutrient-dense parts of the animal go uneaten, valuable food is effectively wasted.
Dr Siân Mackintosh, from the university’s Institute of Biological, Environmental and Rural Sciences (IBERS), said these meats could play an important role in healthier and more sustainable diets.
“Where they are not being used, these nutrient-dense ‘forgotten meats’ represent a significant loss of nutrients from our food chain,” she said. “Incorporating them as part of a balanced diet could support human health while also reducing food waste and improving environmental outcomes.”
Taste tests win over public
To test public attitudes, HCC staff have been running tasting sessions at major agricultural events including the Royal Welsh Show and the Winter Fair in Llanelwedd.
Visitors sampled dishes made with Welsh lamb’s liver, including stroganoff, traditional faggots and pâté. Organisers say many people were surprised by the flavour and keen to learn how to cook them at home.
Dr Eleri Thomas, Future Policy and Project Development Executive at HCC, said interest was stronger than expected.
“We believe there is significant potential for these forgotten meats to be incorporated back into our diets,” she said. “Consumers liked the flavour and wanted recipes and cooking tips, as well as understanding the nutritional value.”
She added that making better use of undervalued cuts could improve sustainability across the meat supply chain while creating new marketing opportunities for Welsh producers.
Part of wider sustainability project
The work forms part of the SMART Nutrient Cymru project, funded through the Welsh Government’s innovation support scheme.
Project lead Dr Christina Marley said the aim is to capture nutrients currently being lost across the agri-food system.
Alongside the collaboration with HCC, the team has also partnered with Dŵr Cymru Welsh Water on land management to protect rivers, and with British Wool to explore new uses for fleece by-products.
IBERS itself is one of eight UK research institutes strategically supported by Biotechnology and Biological Sciences Research Council, providing national expertise in grassland and plant breeding science.
Researchers say that with food prices rising and pressure growing to reduce waste, traditional nose-to-tail eating could offer both economic and environmental benefits.
Image: Welsh lamb faggots (Pic: HCC)
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