The double cultivation, such as the combination of lettuce and strawberry in hydroponic greenhouses without a substrate, aims to increase production by taking full advantage of the area, achieving greater profitability and, therefore, reducing the rate of return on investment performed.

The double cultivation model developed can reach 140,000 plants per hectare, for both strawberry and lettuce. This density is much higher than that of other forms of cultivation, with percentages between 50 and 100 percent higher, depending on whether you opt for the elevated system, or the oscillating and suspended systems.