Lettuce cultivation has grown in recent years thanks to the diversification of varieties and the increase in pre-prepared convenience products.
Lettuce and leaf crops are annual crops with a production cycle of 45-150 days depending on varieties, time of year and type of production, and three phenological stages (germination, pre-cropping, head formation and flowering and seed maturation).
Production requirements for lettuce growing
If you want to obtain a good yield, it is necessary to have a high and uniform irradiation, which helps rapid growth.
It should be noted that lettuce tolerates low temperatures better than high temperatures (maximum 30 °C and minimum -6 °C). The root system of lettuce is very small, so it is very sensitive to lack of moisture and drought.
Growing lettuce in greenhouse or in the open field?
Lettuce production systems are very varied. It is only recommended to grow lettuce outdoors if the weather conditions allow it.
For this reason, more and more growers are opting to grow lettuce in hydroponics and aeroponics. Although the challenge of this type of system is to achieve a balance of nutrients, conductivity and pH (depending on the ambient temperature) in order to achieve quality production.
The cost is higher, but it saves water and nutrients. In addition, vertical cultivation requires less surface area and you can grow more plants.
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