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Farming Innovation Pathways: LightWeeding

The LightWeeder is a world-first eye-safe, herbicide-free, carbon neutral, commercially viable weeding system delivered by lightweight autonomous field robots via UK agri-robotics company and Agri-EPI Centre member, Earth Rover.

The LightWeeding technology uses semiconductor LEDs to solve key technical, safety and commercialisation challenges faced by laser-based weeding systems.

The LightWeeder is part of CLAWS (Concentrated Light Autonomous Weeding and Scouting), Earth Rover’s agri robot that can kill weeds using a unique concentrated light method, and can also scout fields to obtain a complete data map of all crops after planting, showing the crops exact location, size, and any early signs of disease.

The main features of CLAWS are:

  • Weeding – chemical free and inherently safer than laser weeding. No till and no crop damage and can be used in any conditions without compacting the soil.
  • Scouting – In depth analysis of crops to allow better harvest predictions and increased yields

The complete system is ultra-lightweight (only 300kg) meaning it requires low amounts of energy to run, and is cheaper and more environmentally friendly than many of its competitors. It runs on batteries and (eventually) solar panels therefore uses no fossil fuels and helps farmers meet their net zero targets.

With increasing types of chemical-resistant weeds, a significant downturn in availability of hand labour plus a shift in society towards more organic options, now more than ever there is a need to change the way we farm. A recent report by Rothamsted Research shows weeds “pose an unprecedented threat to our food security” and highlights the need to diversify weed control as an urgent priority.

As explained by John Taylor, Farm Director at Pollybell Organic Farm,

“the key element here is that the LightWeeder not only makes chemical free farming more effective but it also solves the huge issue farmers are facing today in terms of the huge loss in labour force. Being able to weed fields autonomously means that food production doesn’t just grind to a halt.”

Lightweeding has several advantages over mechanical systems: it is energy-efficient and no-till, it does not damage drip irrigation or crops, it is not dependent on soil conditions, and it does not enable weeds to develop resistance. However, effective lightweeding must be low-cost, fast, and offer safe autonomous operation in modern farm environments – criteria that does not exist in-the market at this time.

Agri-tech Conference explored food resilience in COVID age

Together with the Agri-Tech Centres, Agri-EPI organised the Virtual Conference ‘Innovation for Food Resilience’. The event, hosted by BBC Farming Today presenter Charlotte Smith, was designed to showcase and discuss a host of new technologies and techniques helping farming and food production to become more resilient and sustainable. The conference gathered an incredible interest: over 1200 delegates attended the conference and over 20 countries took part. Recordings are made available on demand for those unable to join on the day.

Accelerating agrifood innovation

‘Innovation for Food Resilience’ features insights into key challenges and opportunities for the food and farming sector from industry thought leaders and how new technologies and solutions being developed across the family of UK Agri-Tech Centres could play a pivotal role in supporting productivity and sustainability.

Professor Tim Benton, from international affairs think tank Chatham House, has a clear message about the need to adapt to frequent and unpredictable change and how building resilience is a key strategy for being able to effectively adjust.

NFU President Minette Batters focuses on UK trade and transition and the seismic impact that the current unknowns will have on farming businesses. She highlights how data and innovation can empower farmers to avoid risk and the opportunity for farming to offset carbon for other sectors

Ellen Wilson, Microsoft UK’s Sustainability and Smart Cities Lead highlights the importance of measuring your own journey to sustainability to effectively manage and understand the impact achieved.   Evidence points to sustainability being better for business.

Food resilience and innovation in agriculture

The 4 Agri-Tech Centres explored different aspects of the work underway to promote innovation throughout the food supply chain. Themes covered are climate smart food systems, sustainable productivity, crop and livestock health, and food provenance and quality.

In particular, CHAP’s Dr Harry Langford, spoke about Climate Resilient Food Systems, highlighting the work of CIEL’s Duchy Future Farm; Agri-EPI Centre’s Hands Free Farm and Gelponics, a CHAP project focusing on developing an autonomous, hydroponic system centered around a novel hydrogel growing media. Another project he talked about was the Agrimetrics’ regenerative agriculture platform regenagri, an initiative aimed at securing the health of the land and the wealth of those who live on it.

Stuart Blyth, Head of Business Development of CIEL, covered Food Safety and Provenance, using CIEL’s Agriplas, a cold plasma research facility investigating the potential uses of the antimicrobial properties of this pioneering technology for the food industry. He also spoke about CHAP’s NLG Centre and Crop Storage facility, and Agri-EPI Centre’s Opti-beef project as a good example of the wide range of work being done in this area. The Opti-Beef project is about creating an enhanced decision support platform to modernise, standardise, and drive efficiency improvements across the UK beef supply chain.

Dr Shamal Mohammed, Chief Technical Officer at Agri-EPI Centre looked at Sustainable Productivity, including CHAP’s Soil Health Facility, Agrimetric’s Verde Analytics and CIEL’s Precision Grazing. Last but not least, Anna Woodley, Agrimetrics Head of Sales, covered Crop and Livestock Health with a focus on looking at whole systems rather than managing risks in isolation.

Presentations were followed by a lively Q&A session, with lots of interaction from delegates across the globe. Closing remarks, by Dr Ian Campbell, interim Executive Chair of Innovate UK, provide the key ‘takeaways’ from the event. In particular, he notes how collaboration is key and how the combined capability of the UK Agri-Tech Centres offers the front door for industry to world leading expertise and capabilities.

View on demand

The event can be viewed in its entirety on the UK Agri-Tech Centres YouTube channel.

Event impression

Get in touch

Let us know what Agri-EPI, together with the Agri-Tech Centres, can do for your organisation or how we can inspire innovation in agriculture even further and fill out our contact form.

Tag Archive for: food security

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