This post was written by guest contributor Alex Omelchenko
CEA, which stands for Controlled Environment Agriculture, refers to the concept of indoor farming, and encompasses a variety of innovative agricultural methods in an attempt to circumvent the disadvantages faced by conventional farming methods.
Ultimately, these indoor farming methods are adaptable and can be used by anyone almost anywhere, which means they are accessible in ways that traditional agriculture is not, particularly in many highly populated urban areas.
The Problem with Traditional Farming Methods
To fully understand why CEA has been such a welcome solution, you first need to grasp the obstacles faced in traditional agriculture. Besides being inaccessible to the greater public, it poses a risk to the environment due to urbanization, deforestation, lack of space, and water shortages around the world.
LIMITED IRRIGATION
You often find with traditional agriculture that systems are not set up to ideally distribute; most of the water used does not get absorbed by crops but evaporates. Many conventional farms have tried to adapt and find ways around this, yet these measures are often ineffective and difficult to regulate. Inadequate irrigation is a major drain on local environmental resources, and there is not enough initiative to recycle resources, such as implementing measures to recapture wasted water. This is particularly poignant in times of drought when productivity all but halts–an issue which Controlled Environment Agriculture addresses.
SOIL DEGREDATION
It is vital that the health of soil systems is maintained to optimise water usage and crop yield. Traditional farming tends to leech the land of its nutrition over time resulting in soil that is undernourished and eroded. Self-contained farming systems do not have negative impacts like this on the environment.
VARIABLES THAT CAN'T BE CONTROLLED
A major factor, when it comes to conventional farming, is crop exposure to the elements. Crops are heavily affected by things like sunlight, rain, and wind, and there is only so much that farmers can do to control the impact of these elements. Such variables also impact the amount of irrigation that is needed and can weigh heavily on water resources during dry seasons.
Controlled Environment Agriculture To the Rescue
Looking at the bigger picture, it is clear that there are major obstacles to overcome. While conventional farming “usually alters the natural environment, deteriorates soil quality, and eliminates biodiversity” (stonybrook.edu), CEA addresses these challenges in a variety of innovative ways making urban farming accessible to the public in ways never seen before. It introduces some major environmental advantages, including big savings in terms of water usage.
A major component of most CEA systems is hydroponic farming, or some variation thereof, which simply refers to the method whereby water and nutrients are transmitted in a highly efficient manner to plant roots, all without soil in a nearly closed system.
CEA YIELDS MORE PRODUCTIVITY
Thanks to a CEA innovation known as vertical farming, farmers are able to produce as much as 100 times more food per square foot than is possible via conventional methods. Vertical farming has made it possible to grow produce in smaller areas, even in urban rooftops or basem*nts.
CEA also mitigates factors that could severely hamper productivity, such as pest infestation, dry weather seasons, air and soil pollution, and other elements that indoor setups don’t have to worry about.
CEA IS SUSTAINABLE
While conventional farming is by no means going away, it is evident that in order for future generations to survive as the populations continue to grow, it is vital that we pave the way for a more sustainable way we grow, purchase and consume the food we eat. This is where CEA proves to be the most efficient option for our future, when it comes to a more sustainable use of space and water consumption.
PRODUCE IS GROWN YEAR ROUND
When certain seasonal produce is ‘out of season,’ the demand outweighs the supply, pushing prices up. While there are ways to cheat the natural growth cycles of fruits and veggies through methods such as genetic engineering and cold storage, many consumers are avoiding these retailers in favor of a sustainable lifestyle. Thanks to CEA methods like advanced lighting and irrigation, growers can simulate the optimal seasons for growth, without having a negative impact on the local natural environment and ecosystem.
To Sum Up
When it comes to the food supply chain, consumers are not only becoming more conscious of what they consume and how it affects them, they are also becoming increasingly aware of how their buying behavior impacts the environment. This is why traditional agricultural methods are under scrutiny and urgently need to be disrupted. In the move toward sustainable living, CEA has the potential to play a massive role in supplying communities with more food at lower costs, as well as in reducing water wastage and limiting the negative impact that agriculture has on the environment.
About the Author:Alex Omelchenko works at Apex Window Werks, a home window repair and replacement company based in Chicago, Illinois. The company deals with everything related to wood, windows and doors, including custom glass cutting, window defogging and window frame replacement.
FAQs
CEA allows farmers to grow crops year-round, regardless of weather conditions. This means that farmers can produce more food per square foot of land, increasing crop yields and reducing the amount of land needed for agriculture.
What is CEA in agriculture? ›
The term controlled environment agriculture (CEA) encompasses a variety of systems that take a technology-based approach to farming. CEA can range from simple shade structures and hoop houses through greenhouses to full indoor or vertical farms.
What are the disadvantages of CEA? ›
Lack of natural conditions: CEA tries to imitate the conditions in which plants naturally grow. However, since some natural factors, such as wind and insects, are not in artificial environments, the quality of plants grown by this method may decrease.
What are the problems with traditional farming? ›
Conventional agriculture causes increased greenhouse gas emissions, soil erosion, water pollution, and threatens human health.
Why is traditional agriculture important? ›
Traditional Farming: Low environmental impact due to organic practices. Relies on natural pest control and crop rotation to maintain soil fertility. Preserves biodiversity through diverse crops and native seeds.
What are 4 disadvantages of traditional farming? ›
Traditional farming harms the environment and sustainability. Ancient and modern agricultural practices contribute to deforestation, water pollution, greenhouse gas emissions, and soil degradation. Sustainable agriculture aims to reduce chemicals, preserve biodiversity, and improve soil health.
What are the CEA growing methods? ›
Within the world of CEA are two technology-driven growing methods, hydroponics and aeroponics. Hydroponic farming means plants are grown in water rather than soil. Nutrients are added to the water to ensure healthy plants with maximum output. Aeroponic growing means plants are grown with their roots exposed to the air.
What does the CEA stand for? ›
A-say) A laboratory test that measures the level of carcinoembryonic antigen (CEA) in the blood. An increased amount of CEA may be found in the blood of people who have colon cancer or other types of cancer, certain other diseases, or who smoke.
What resources does CEA optimize? ›
CEA is a technology-based farming approach that monitors and optimizes crop growth conditions year-round, no matter the weather. Greenhouses, vertical farming and other hydroponic farming are all CEA examples in action.
Can CEA be wrong? ›
False-positive CEA test results in the range of 5 to 15 ng/mL are common. Confirmation of CEA elevation in this range before initiating imaging studies may be appropriate. False-positive results greater than 15 ng/mL are rare, and all confirmed CEA levels greater than 35 ng/mL were associated with cancer recurrence.
The sensitivity and specificity of serial measurement of CEA in detecting recurrent colorectal cancer are approximately 80% and 70%, respectively. [22] It has the advantage of providing a lead time of about five months compared to other diagnostic methods for detecting recurrence.
What are the advantages of CEA? ›
CEA is most useful before a programme has begun, as it enables the comparison of two different courses of action. Consider using it at the programme design stage as well as at the evaluation stage.
What are two disadvantages of traditional farming? ›
Furthermore, traditional farming in less-favored areas can be problematic due to factors such as soil erosion, drought, lack of infrastructure, and reduced market demand, leading to lower agricultural productivity and poverty .
What is the biggest problem in farming? ›
Agriculture is highly dependent on climate and weather conditions. Prolonged drought or extensive rainfall can have devastating repercussions on soil health and fertility. Average global crop yields for maize or corn are projected to drop by 24% in the next 60 years.
What are the advantages and disadvantages of traditional farming? ›
Advantages of traditional farming include improved soil fertility, carbon sequestration, and biodiversity maintenance. Disadvantages include negative implications of slash-and-burn activities in shifting agriculture.
What are the solutions to agricultural erosion? ›
You can reduce soil erosion by:
Planting a cover crop – such as winter rye in vegetable gardens. Includes annual grasses, small grains, legumes and other types of vegetation planted to provide a temporary vegetative cover. Cover crops are often tilled under serving also as a “green manure” crop.
How has genetic engineering improved the quality of agricultural crops? ›
For GMO crops that are resistant to insect damage, farmers can apply fewer spray pesticides to protect the crops. GMO crops that are tolerant to herbicides help farmers control weeds without damaging the crops.
Which would be the best way to reduce the environmental impact of traditional agricultural practices? ›
Sustainable agriculture practices
- Rotating crops and embracing diversity. ...
- Planting cover crops and perennials. ...
- Reducing or eliminating tillage. ...
- Applying integrated pest management (IPM). ...
- Integrating livestock and crops. ...
- Adopting agroforestry practices. ...
- Managing whole systems and landscapes.
Applying fertilizers in the proper amount, at the right time of year and with the right method can significantly reduce how much fertilizer reaches water bodies. Keeping animals and their waste out of streams keeps nitrogen and phosphorus out of the water and protects stream banks.
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