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Is Ag 4.0 the answer to feeding the world?

 
 
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Many of us are now familiar with “Industry 4.0”, the digitalisation of manufacturing, but agriculture is having its own digital revolution.

Drones scan fields for low-fertility zones, robots focus on precision rather than speed in crop management, and a computer can control autonomous machinery harvesting a field hundreds of miles away. The urgency to transform food production is even greater than in manufacturing.

Food production faces several existential challenges: productivity, labour shortages, food security and safety, population growth and sustainability. Reducing waste, which has improved but is still worryingly high in the food chain, can also be added. The Covid-19 global pandemic has highlighted countries’ reliance on the food supply chain to meet our growing consumer tastes and expectations for speed, quantity and quality.

For supermarket shelves to remain full, agriculture has to modernise in several ways.

Consider that in some cases, 95% of chemicals put onto the land are wasted. A study by the Institution of Mechanical Engineers several years ago showed that up to 50% of all food in the UK is wasted. Seasonal, low cost labour has always been a vital part of British farming and food processing.

This workforce is evaporating, affected first by Brexit then Covid-19, potentially catastrophic for the farms that cannot source adequate labour – and despite calls for a ‘Land Army’ of UK workers to step up, many producers are deeply concerned about the shortfall.

These factors are accelerating agricultural technology (“agri-tech”) investment.

James Hague, Relationship Director at Barclays says, “The adoption of agri-tech is an unavoidable theme to bring focus on production efficiency from ‘field to fork’, delivering benefits across three major deliverables.

“One, increasing farming intensification through improved output efficiency. Two, increasing output without raising the carbon footprint through technological advances. And three, addressing the labour-intensive nature of the sector and global impacts on the restricted movement of people we are seeing through Covid-19 and Brexit.

Agri-tech is a catalyst of change which through time needs to be adopted to deliver and support a robust and sustainable food supply chain.”

Covid-19 has made the UK examine its food security. The Sunday Times reported in August 2019 some farmers believe the country is producing only enough food to be self-sufficient for about 60% of the year, meaning the UK could not feed itself if supplies from Europe had prolonged delays.

Land agents Savills says, when the original Agriculture Bill (2019-20) was published it was criticised for barely mentioning food production. When the Bill was reintroduced to Parliament in January, the Government responded by including a section on food security.

It would require the Secretary of State to present a report to Parliament at least every five years “containing an analysis of statistical data relating to food security in the United Kingdom”.

Ag 4.0 means small, precise and smart

What has to change? Smart or intelligent farming is about precision over outright speed and volume.

Precision farming management methods and technologies have been driving efficiency improvements on farms for nearly 25 years, however recent agri-tech developments are taking a big leap forward says Kit Franklin, Senior Agricultural Engineering Lecturer and Principal Investigator for the Hands Free Farm, an autonomous farming project run by Harper Adams University.

“Developments are in two main streams: hardware and digital,” Kit says. “The first is making the machines in the field more productive and precise, reducing waste and improving sustainability. The latter aims to improve on farm decision-making though turning agronomic data, both spatial and temporal, into information to drive economic and environmental improvements.”

These hardware and digital developments will one day form the basis of an interconnected system of systems, so-called “Ag 4.0”, whereby information will be shared up and down the whole food supply chain driving decisions at all levels.

The Hands Free Hectare began literally as one hectare and is now a farm covering over 30 acres, the aim of which is to operate with no people for one year. One of the lessons has been that less can be more. Kit says, “The project has allowed the exploration of agri-tech ideas like no other project; we have been able to push technologies to the limit and identify current inadequacies.

We have automated small-scale, less damaging farm machinery providing a glimpse of what swarms of smaller high precision agricultural vehicles of the future may look like, if unharnessed from requiring the skilled operators we currently struggle to recruit in Western agriculture.

“Drones and smart sensors have also been used for the data capture and information-based decision making reaching the boundaries of current farm digital platforms. These projects have shown how close we might be to fundamental changes in farm systems; not 50-years away but possibly only five,” Kit adds.

Empower the buyer: Connect the farm to the factory

Another very important aspect of modernising food production with digital technology is traceability and consumer choice.

People care where food comes from and how it is made; Covid-19 has brought this into sharp relief but even before the crisis consumers have demanded more information from their food; provenance, allergy safety, nutrition and the ethics of the producers.

Data in a smart agricultural system can connect to a smart factory and then the retailer to give the buyer what they want.

Dr Andrea Paoli, Associate Professor in Food Robotics and Process Automation at the National Centre for Food Manufacturing in Holbeach, Lincolnshire, says as we digitise both farming and manufacturing, connecting them achieves several win-win side effects.

“Farming is in a perfect storm, with the pressures of productivity, waste, labour shortages and more. It has to automate to increase yields and be sustainable, this is going to happen anyway. So, we should capture the data as it automates and share it with everyone from the farmer to the consumer.”

Experts like Andrea say we should share the information collected in the farming stage with the whole food supply chain. A person can buy a ready meal at a retailer, who scans the barcode and because all the information is stored in a blockchain the buyer can see where the vegetables were harvested, how they were farmed, what was used as fertiliser this year, and previously. “You are taking a picture of the final product from data taken from the entire supply chain.”

This traceability rigour will benefit companies that are organic and make high food standards a USP, and in theory incentivise more producers to adopt ethical best practice, giving them the data to show-off their standards.

What about cost? Applying all the technology involves capex and forcing food suppliers to be greener and better could hike prices. Low-cost food is essential for society. Andrea believes the technology revolution in farming will happen anyway, so if there is a price rise from tech adoption the added efficiencies realised by automation will counter this.

Roxanne Martin, AgriTech Industry Lead for Barclays Eagle Labs says: “The Global population is estimated to grow to around 9.8 billion by 2050. Ag 4.0 is not only about growing more food for an ever growing population, with less land and fewer resources, it’s also about ensuring that we do this in a sustainable way so that our planet can continue to thrive for generations to come”.

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