High-tech London, Ont.-area farm delivers fresh produce all year. Could it be an answer to high grocery costs?
CBC
Western University researchers are developing a new kind of farm that uses machine-learning algorithms and data analytics to create optimum conditions for growing food anywhere and in any season — producing bigger and better yields while using as little energy and water as possible.
The venture comes at a pivotal time in agriculture, with climate change escalating the likelihood of drought and floods capable of decimating harvests, causing consumers to shell out more at grocery store checkouts.
Called the Agrotunnel, the experimental farm north of London, Ont., may not offer relief from grocery prices, but it's planting the seeds for a new chapter in farming — one that could bring year-round harvests and fresh produce to remote northern communities with minimal environmental impact.
From the outside, the Agrotunnel doesn't look much different than any pre-fab metal building you might see in the Far North. Inside, though, there are rows upon rows of leafy greens and hundreds of ruby red strawberries.
Each piece of produce is rooted in a fistful of soil along the vertical rows. They bathe in the glow of specially calibrated low-intensity LED lights that run 24/7, a pump delivers nutrient-rich water to each of them to keep them from going thirsty and a speaker system even plays them music — these particular berries love hard rock.
"These are commercial varieties of strawberries and they're continually becoming ripe," said Joshua Pearce, a Western University engineering professor.
"When the strawberries are ripe, you can come and pick them ... the next day. You can continually do that all year round."
Pearce is a big booster of sustainability.
His studies in agrivoltaics — the dual use of land for solar energy production and agriculture — suggest that if Canadian farms devoted even one per cent of their land to solar panels, it would eliminate the need to burn fossil fuel when it comes to generating electricity.
Solar panels keep the Agrotunnel's lights on, and also power the machine-learning and data analytics that ensure the berries get what they need when they need it, which helps them grow at twice the rate of outdoor strawberries.
"We found so far with what we've been doing that we can take a strawberry from seed to production in a single season and when you're outside, it normally takes up to two years. It's much faster at producing good-quality berries," Pearce said.
The research was made possible with a $1-million grant from the Weston Family Foundation a charity created from the profits of the family's empire. Their holdings include Loblaw, Canada's biggest grocer, which is under fire along with other grocers over high food prices.
The Agrotunnel will shorten the distance from farm to table, said Kim Parker, president and CEO of Food Security Structures Canada.
It could also mean that one day restaurants and grocery stores themselves could grow some of their own produce in store.
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