Growing in New Ways with Controlled Environment Agriculture
Farming practices are in constant development to find the best ways to feed everyone on the planet. While many innovations are found solely at large-scale farms, new methods of farming have emerged and expanded to bring farming into cities and other non-rural areas. The idea of controlled environment agriculture, or CEA is not new, but it has been growing in popularity. Greenhouses are the prime example of CEA and have been used for centuries on farms and more recently in urban gardens. CEA builds off the concept of greenhouse farming, whereby temperature, moisture, lighting, and overall climate are controlled in a particular area to promote optimal plant growth. Vertical farming is another example of CEA and is popular in urban areas due to the small amount of horizontal space it requires. Farming practices like hydroponics, aeroponics and aquaponics are all considered CEA. In each of these CEA practices the climate is closely monitored and controlled, often in a small space, to give plants the resources they need to grow. New Tech for Urban Farmers The popularity of CEA is partially attributed to the potential environmental benefits it can have, which has led to greater economic investment and improved technology to expand this type of farming practice. These innovations draw from greenhouse technology relating to temperature and moisture control, but they may also involve redesigning classic greenhouse structure, such as in the example of vertical farming. In many cases, building materials are carefully selected to make the structure more energy-efficient; this can include choosing glass or plastic in a greenhouse that can block ultraviolet (UV) rays and allow for lighting control from within the building. Some structures may also include sensors that can be installed and programmed to signal if and when conditions are not optimal for the plants inside. Additionally, […]
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