Our planet faces a growing challenge in terms of soil erosion. Currently, it is estimated that 33% of soils are degraded, which jeopardizes agricultural production. Traditional agriculture, especially in its intensive form, contributes significantly to this degradation, as it overexploits the soil's capacity, depleting its nutrients. The situation may worsen over time. In fact, it is predicted that by 2050, 10% of agricultural yields worldwide will have been lost due to this phenomenon. Faced with this scenario, a solution emerges that could change the way we produce food: vertical farming.
But what exactly is vertical farming and how can it help mitigate the problems associated with soil erosion? In this article, we will explore in depth what vertical farming is, its features, advantages, and its potential applications in the future of global agricultural production.
What is vertical farming
La vertical farming It is a revolutionary approach in which crops are planted in vertically arranged layers inside buildings or enclosed structures. These facilities can be located in both urban and rural areas, but one of the great advantages is the possibility of placing them in areas where arable land is scarce, such as densely populated urban centers.
These buildings, which can become skyscrapers, allow take advantage of vertical space to maximize food production on a much smaller surface area than would be required by traditional agriculture. Some of the most commonly used methods in vertical farming include Hydroponics, the aeroponics and aquaponics, systems that do not require the use of soil and employ advanced irrigation techniques and nutrients to feed the plants.
An example of how vertical farming works can be seen in Madrid, where there is already a facility of more than 1000 square meters and 20 cultivation plants. In these facilities, crops such as tomatoes, chard and lettuce grow thanks to the use of LED bulbs that replace natural sunlight.
One of the main characteristics of these crops is the strict control of environmental conditions. The experts, who usually dress like scientists in sterile laboratories, monitor the variables of temperature, humidity and light to optimize the growth of the crops.
Main features and advantages of vertical farming
Vertical farming offers multiple advantages over traditional agricultureBelow we break down some of the most notable ones:
- Saving space:As mentioned above, vertical farming allows for more food to be produced with less land, which is especially important in urban areas with high population density or in regions where the land available for cultivation is limited or expensive.
- Efficiency in the use of water and resources: In systems such as hydroponics and aeroponics, the amount of water used is minimal compared to conventional agriculture. According to certain studies, it is possible save up to 95% water with these systems.
- Reduced use of pesticides: Since growing in a controlled environment reduces exposure to pests, fewer pesticides and herbicides are needed, contributing to greater sustainability.
- Optimizing energy consumption:Although one of the challenges of vertical farming is energy consumption (mainly for lighting and air conditioning), more efficient solutions are currently being developed, such as the use of renewable energy and intelligent management of energy consumption.
Environmental impact and sustainability
The environmental impact of vertical farming is considerably lower than that of traditional agriculture. Not only does it reduce the space needed for cultivation, but it also contributes to soil erosion control and reduces deforestation.
Furthermore, by being close to consumption centres, local products can reduce costs and emissions associated with transport. Added to this is the fact that plants grown in vertical spaces tend to have a uniform quality, without being exposed to adverse atmospheric phenomena such as storms, heat waves or droughts.
In vertical farming, the use of agrochemicals is minimized, which in the long term helps prevent water pollution and soil erosion, which is a direct benefit to the ecosystems around agricultural areas.
Greater productivity with homogeneous harvests
One of the main benefits of vertical farming is its ability to significantly increase productivity. In some cases, it is estimated that production can increase up to 100% in comparison with traditional methods.
Furthermore, since the conditions are perfectly controlled, it is possible to have More homogeneous and predictable harvests, which improves the overall quality of the final product. Vertical farms also allow for multiple harvests per year, something difficult to achieve in conventional agriculture, where seasons and climate play a crucial role.
Full control over the indoor climate helps reduce vulnerability to adverse weather events. Growing on a large scale in urban environments, close to where food is consumed, not only ensures a shorter supply chain but also reduces food waste as products arrive fresher and with a longer shelf life.
Technological advances and the future of vertical farming
Vertical farming is in constant technological evolution, driven by the need to improve energy and production efficiency. The use of smart sensors, Robot farmers and Artificial Intelligence to monitor crop growth is already a reality in many projects around the world.
In places like Dubai or Japan, where sufficient land for agriculture is extremely limited, vertical farms are proving to be the ideal solution for producing food sustainably. However, one of the challenges still to be solved is the high initial installation cost and energy consumption, which although improving, remains a considerable challenge.
With improving technology and decreasing technological costs, vertical farming is expected to be a key part of the global food supply in the coming years, helping to reduce environmental impact, protect natural ecosystems and feed a growing population.
Vertical farming is presented as one of the great agricultural innovations, capable of offering a sustainable and efficient solution to the challenges posed by food security in the 21st century.