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Farming

Phosphate replacement proposed

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Fighting a green war on pests.

Fighting a green war on pests.

FUNGI could be used as a ‘bio-fertiliser’ with the potential to replace unsustainable mined phosphate in future, according to new research from the University of Cambridge.
The study shows that the interaction of roots with a common soil fungus changes the genetic expression of rice crops, triggering additional root growth that enables the plant to absorb more nutrients.
In addition to causing extra root growth, the mycorrhizal fungus also extends within crop roots, blooming within individual plant cells.
The fungus grows thin tendrils called hyphae that extend into surrounding soil and pump nutrients, phosphate in particular, straight into the heart of plant cells.
Plants ‘colonised’ by the fungi get between 70 to 100% of their phosphate directly from these fungus tendrils, an enormous mineral boost.
The researchers hope that the fungi could be used as a ‘bio-fertiliser’ that ultimately replaces the need to mine phosphate from the ground for industrial fertiliser.
Finding a replacement for mined phosphate is a critical problem as the fertiliser can cause pollution, and the big phosphate mines are now depleted to the point where they are expected to run out in the next 30 to 50 years.
“The big question we are trying to answer is whether and how we can make use of the biofertiliser capacity of mycorrhizal symbiosis in modern and more high input agricultural settings, meaning more intensive farming methods. We need alternatives to phosphate fertiliser if we are to feed growing populations,” said Dr Uta Paszkowski from the University of Cambridge’s, who co-authored the research.
Cereal root architecture involves a few big, thickset roots called crown roots, from which all the smaller lateral roots spread out into the different layers of soil.
Researchers found that plants colonised by mycorrhizal fungi have a different genetic expression which causes the cell walls within crown roots to soften, triggering the growth of many more lateral roots which are able to suck in more nutrients, contributing to a healthier plant with a higher yield.
This is in addition to the phosphate provided by the fungal tendrils, which in effect act as extra roots themselves (in return for which, the fungus absorbs carbohydrate from the plant).
“Plant roots that have the capacity to explore the widest soil area absorb the most nutrients as a consequence and so are likely to have a greater crop yield. By finding out which parts of the genome are responsible for the best plant root systems we can start breeding for the best root architecture,” said Ms Paszkowski.
“Designer crops with the best possible root systems will mean greater crop yield, which means more people fed.”
The main hurdle for researchers to overcome is the self-regulation of plants, which means the fungi cannot be tested on an industrial scale alongside traditional fertiliser.
“Plants monitor their own nutritional state. If a plant has enough phosphate it will not allow fungus to enter root – so at the moment it’s one or the other. We are working on ways to circumvent this blockage so we can allow symbiosis to contribute in agricultural practices in better developed countries,” said Ms Paszkowski.
Mycorrhizal fungi are extremely common in all soils around the world, and are an ingredient in many ‘bio’ plant foods found in domestic garden centres, but have yet to be used for industrial agriculture.

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Business

Innovative water partnership involving Pembrokeshire dairy farmers underway

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A PIONEERING environmental project in Pembrokeshire aims to capture up to 250 million litres of additional groundwater each year, as local farmers take collective action to tackle flooding, drought and water quality challenges.

The initiative brings together 21 dairy farmers, all members of the First Milk co-operative, in a new four-year partnership with Nestlé Waters & Premium Beverages UK — both major employers in the region.

Dan James and Nestlé’s Matthew Faulkner on Gellyolau Farm

Regenerative farming to boost soil health

The project forms part of First Milk’s industry-leading regenerative farming programme, which encourages practices such as rotational grazing and increasing species diversity in grassland. These methods improve soil structure and organic content, helping land retain more water and reducing environmental damage during extreme weather.

“As extreme weather becomes more frequent, poor water systems add to the risk of flooding and drought,” said Mark Brooking, First Milk’s Chief Impact Officer. “This project supports our farmers to work with nature — improving the land, supporting biodiversity, and delivering lasting benefits to local communities.”

Across 800 hectares of farmland, the farmers are extending regenerative practices to create natural water reservoirs within the soil. By improving water infiltration and the soil’s holding capacity, they hope to make farms more resilient while protecting nearby rivers.

Understanding what’s below the surface

To establish a baseline, an agronomist has assessed more than 100 fields across the 21 farms. Nearly 50 soil samples were analysed, 650 earthworms counted as indicators of soil health, and penetrometer tests carried out to measure compaction.

Each farm has received tailored recommendations, from shallow sward slitting to deeper subsoiling, along with guidance on grazing patterns and planting deeper-rooting pasture species to maintain long-term soil structure.

Farmers are already putting the advice into practice.

“It’s made me spend time looking at issues I hadn’t given enough attention to before,” said Dan James of Gellyolau Farm near Clynderwen. William Fox, of South Astridge Farm near Tenby, added: “Understanding where compaction occurs helps me plan improvements. Anything that reduces soil compaction benefits both the farm and the environment.”

Near Puncheston, Michael Williams is using sward slitting and subsoiling in the short term while increasing grass diversity for the long term. “The assessment confirmed what I suspected — that some areas struggle in very wet or very dry conditions. It’ll be interesting to see what impact these changes have,” he said.

Protecting Pembrokeshire’s rivers

As the interventions take effect, the land will hold more water and reduce surface run-off, helping to improve water quality in the Eastern and Western Cleddau and tributaries of the River Taf.

Matthew Faulkner, Factory Manager at Nestlé Waters & Premium Beverages in Narberth, said: “We’re proud to work with First Milk farmers to improve groundwater quality and quantity here in Pembrokeshire, where our Princes Gate and Nestlé Pure Life bottling site operates.

“Water is a shared resource and a shared responsibility. Caring for it requires collaboration — and this partnership shows what can be achieved when local communities work together.”

Cover image:

First Milk’s Esther Stephens and William Fox on South Astridge Farm

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Farming

Pembrokeshire former vineyard development scheme approved

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PLANS for a “hobby farm” agricultural shed near the site of a former Pembrokeshire vineyard, made by a close family member of a part of the county’s planning service have been given the go-ahead.

In an application recommended for approval at the November 4 meeting of Pembrokeshire County Council’s planning committee, Barry Cadogan sought permission for the building at Oaklea, Martletwy.

It was brought to committee rather than being decided by officers due to the family link with the service.

A report for members said the site, by the former Cwm Deri vineyard, sought to replace a prefabricated Nissen Hut which is in a poor state of repair; the replacement housing machinery, sheep and fodder/hay/straw.

The report added: “Oaklea is located in the countryside and extends to approximately 25 acres with a further 11 acres of rented land. The supporting statement states that the applicant intends to use all of the land for farming operations and that the new building is required to enable the storage of agricultural machinery and other plant which is already owned and used to maintain the land.

“During the course of the application, the applicant’s agent has provided additional information that details that the applicant has a range of agricultural machinery and livestock comprising 10–15 breeding ewes and a ram and several chickens. The shed would also be used to store hay cut from the land and to occasionally house livestock during the winter months.”

Speaking at the meeting, agent Andrew Vaughan-Harries said the smallholding “hobby farm” had suffered damage to existing buildings during recent storms.

Approval was moved by Cllr Alec Cormack, with 11 members in favour and one abstaining.

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Farming

All-Wales Bluetongue Restricted Zone to be declared from November 10

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Deputy First Minister says policy has delayed spread and given farmers vital preparation time

WALES will become an all-Wales Bluetongue Restricted Zone (RZ) from 10 November, the Welsh Government has confirmed.

Deputy First Minister and Cabinet Secretary for Climate Change and Rural Affairs, Huw Irranca-Davies, announced the measure on Thursday (Oct 30), saying the move follows months of surveillance and close work with vets and the farming industry.

Bluetongue serotype 3 (BTV-3) has now been detected in eleven cases in Wales — four in Powys and seven within the Temporary Control Zone (TCZ) in Monmouthshire. Officials expect more cases to appear as monitoring continues.

Mr Irranca-Davies said: “The success of our policy so far is down to the hard work of delivery partners such as the Animal and Plant Health Agency and The Pirbright Institute, as well as the co-operation of farmers and vets across Wales.

“I recognise the disruption caused by movement restrictions between England and Wales, but this approach has delayed the spread of Bluetongue until a time of year when transmission is far less likely and has given farmers valuable time to vaccinate and prepare.”

He added that temperature data and modelling indicate midge-borne transmission is “very unlikely” after 10 November, allowing the Government to simplify control measures while maintaining vigilance.

What changes from November 10

  • Temporary Control Zone revoked: Existing TCZ restrictions will end, simplifying the disease control framework across Wales.
  • Premises restrictions lifted: Individual holdings will no longer face Bluetongue-specific movement or culling requirements.
  • Free movement between England and Wales: Livestock will be able to move without mandatory vaccination or mitigation measures, although vaccination remains strongly advised.
  • Ongoing surveillance: Monitoring for new Bluetongue serotypes will continue to ensure early detection and rapid response.
  • Germinal product testing: Testing of donor animals before freezing and marketing will continue to reduce transmission risk.
  • Moves to Scotland: Animals moving from the Welsh RZ to Scotland will be subject to Scottish licensing and testing rules.

Industry backs the move

During a roundtable meeting on 27 October, senior industry representatives gave unanimous backing to the all-Wales RZ. They supported freer livestock movement between Wales and England while acknowledging the increased animal-health risks that come with it.

Chief Veterinary Officer for Wales, Richard Irvine, said: “We continue to urge animal keepers to source stock responsibly, remain vigilant for signs of Bluetongue, and report any suspect cases immediately to the APHA.

“Vaccination remains the best way to protect herds and flocks. With industry’s full support, I strongly encourage farmers to speak to their vets about the timing of vaccination, particularly before the next transmission season in spring 2026.”

Mr Irranca-Davies concluded: “As we move forward, continued co-operation between farmers, vets, Welsh Government and our delivery partners will be vital to minimise the long-term impact of Bluetongue in Wales.”

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