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Vertical farming an ‘ideal’ option for dairy and beef producers

The increase in the demand for locally produced food in the last few years can in the future lead to the establishment of more vertical farms in Ireland.

So says John Paul Prior, co-founder and strategy and sales director at Farmony. The company designs and builds controlled environment, vertical farming solutions that produce crops all year round.

What is vertical farming?

Vertical farming is the process of growing crops in vertically stacked layers.

This is most often done using controlled-environment agriculture practices which aim to optimise plant growth and nutrition.

Furthermore, the growing process commonly involves the use of supplementary lightning like LEDs.

Also, a vertical indoor farm can be set up in a rural or urban setting. It can be housed in buildings, tunnels, and shipping containers, any open and available space.

Types of vertical farming

Vertical farming is done by mainly using three techniques:

  • Hydroponics: A form of horticulture that involves growing crops without soil by using nutrient-rich water;
  • Aquaponics: This is the working together of aquaculture (farming fish in tanks) and hydroponics;
  • Aeroponics: This growing method is also a soilless farming technique. It involves growing plants in an air or mist environment.
What crops are grown with vertical farming?

The crops that are most often grown in vertical farms are leafy greens (also called leaf vegetables and salad greens), herbs, and microgreens (young vegetable greens).

In Ireland, these are the crops that are primarily focused on, although it is also possible to grow others like tomatoes and strawberries.

“This offers great potential for urban farming, for instance in disused buildings.

“In the future, we may probably see a hub-and-spoke model. Hence, a couple of hubs producing high volumes, complemented by smaller, urban farms.”

The increase in the demand for locally produced food in the last few years could ead to the establishment of more vertical farms in Ireland.

Farms in Tipperary, Galway, and Armagh

Farmony has set up vertical farms for customers in Tipperary, Galway, and Armagh, replacing imports with locally, fresh-grown produce.

There are also plans for a large urban farm in the Dublin city centre, which Prior says will likely be up and running in February next year.

Moreover, these farms supply the foodservice and retail sector, and in some cases, also sell directly to customers.

For example, Emerald Greens from Ballyporeen, Co. Tipperary supplies to food services group, Compass Ireland, and food business, The Happy Pear.

The increase in the demand for locally produced food in the last few years could ead to the establishment of more vertical farms in Ireland.

Start small and scale-up

Prior adds that they supply a modular system that enables interested parties to start with a small footprint and then scale up as circumstances allow.

A single module has a footprint of 1m x 1.3m and is about 2m tall if you have four layers.

One Farmony 4-layer vertical farm module starts at €2,200 ex VAT.

According to Prior, once the temperature and humidity are controlled in a clean environment, you just need an electrical connection, as well as water-in, and water-out.

After that, there is the price of seeds, substrates, nutrients, and electricity to power the pump and the humidity/temperature control.

The beauty of vertical farming is that it is accessible to basically “everyone”. This can include restaurants, hotels, hospitals, schools, universities, community organisations, and individuals.

But it is not just for new entrants into the market. Prior says it is also “ideal” as a supplementary and complementary option for producers within horticulture and as a diversification opportunity for traditional farmers in beef and dairy.

The increase in the demand for locally produced food in the last few years could ead to the establishment of more vertical farms in Ireland.

Pros and cons of vertical farming

The benefits of vertical farming are:

  • It has a small footprint relative to traditional farming practices as the crops are grown in layers;
  • Geographically, you can do vertical farming anywhere where there is space available. Hence, it is an ideal opportunity within urban centres as you can place the farms where the population is;
  • It uses 90% less water than traditional agriculture because water use is recirculated through the production system.
  • Food miles are reduced considerably because of local production and a concomitant reduction in imports;
  • Crops can be grown right through the year as production is not limited by seasons and climates as is the case with traditional farming methods;
  • Increased harvests and uninterrupted supply to customers.
  • Growing all-year-round also translates into full-time employment for workers as opposed to seasonal work with conventional agriculture;
  • Pesticide-free produce.
Challenges

However, despite the positive impact that vertical farming can bring, some challenges exist.

For one, Prior says work still needs to be done regarding people’s perception of vertical farming. To change this, there needs to be more education about this topic.

“As with any change, there is a feeling that it potentially can be a threat to the dairy and beef industries, especially in light of the plant-based food drive.

“However, it needs to be clarified that it is not a threat, but rather a big opportunity.”

Also, there is still some scepticism about technology’s place in food production.

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