Blog Description

The Role of Greenhouses in Agriculture

The Role of Greenhouses in Agriculture

Agriculture | Dec, 2024

Many experienced gardeners are often excited with the idea of owning a greenhouse as this step is a symbolism of a game changer for them. With this space, they have full control over what they plant, how they plant it, and the results they get from their efforts. In contrast, a beginner in gardening might be uncertain about the advantages of having and using a greenhouse. They may have little to no experience with operating one, or perhaps have never even stepped inside one.

According to TechSci Research report “Smart Greenhouse Market - Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented By Type (Hydroponic and Non-Hydroponic), By Component (HVAC Systems, LED Grow Lights, Irrigation System, Valves & Pumps, Sensor & Control System and Others), By End User (Commercial Growers, Research & Educational Institutes, Retail Gardens and Others), By Region and Competition, 2019-2029F” Global Smart Greenhouse Market was valued at USD 1.72 billion in 2023 and is anticipated to project steady growth in the forecast period with a CAGR of 8.04% through 2029.

Greenhouses are structures made of transparent materials, typically covering a frame or inflated structure, where crops are grown under controlled environmental conditions. Greenhouse cultivation, along with other forms of controlled environment farming, has been developed to create favorable micro-climates that allow for crop production year-round or during specific seasons as needed. These technologies are especially useful in cold climate areas where outdoor farming isn't possible. Greenhouses are commonly associated with off-season production of high-value crops, such as ornamental plants and food.

Description of Greenhouses as Structures for Plant Cultivation

The transparent material that covers greenhouses, whether glass, plastic film, or polycarbonate panels, lets in sunlight, which is absorbed by plants and the soil inside. The heat from this sunlight is trapped inside the greenhouse, which keeps the temperature higher than the outside air. This allows plants to grow in conditions that might otherwise be too cold or too hot for them to thrive.

The greenhouse environment can also be controlled in other ways beyond temperature, such as regulating humidity, CO2 levels, light intensity, and ventilation. For instance, greenhouses may be equipped with automated systems to control temperature through heating, cooling fans, or ventilation systems. Some greenhouses even use supplemental lighting to ensure plants receive enough light, especially during the winter months when daylight hours are shorter.

Greenhouses can be small and simple or large and complex. Their designs can vary based on the specific needs of the plants being grown and the geographical location. They can be freestanding structures or attached to buildings, and some use hydroponic or aeroponic systems to grow crops without soil.

Greenhouse Types: 3 Major Ones

1.   Commercial Greenhouses

Commercial greenhouses are large-scale operations designed for the mass production of crops, often for sale in markets or grocery stores. They can grow a wide variety of crops, such as vegetables, fruits, flowers, and herbs. These greenhouses are typically spacious, highly efficient, and equipped with advanced climate control systems, like automated temperature regulation, irrigation, humidity control, and lighting. Many also utilize hydroponic or aquaponic methods to maximize space and water efficiency. The benefits are clear; commercial greenhouses allow for year-round crop production, even in regions with extreme climates, and can greatly increase yield per square foot compared to traditional outdoor farming. Additionally, they are more resource-efficient, requiring less water and fewer pesticides. However, the initial investment in commercial greenhouses can be steep due to costs for land, construction, and technology. They also demand skilled labor and precise management to ensure optimal production.

2.   Hobbyist Greenhouses

Hobbyist greenhouses are smaller-scale structures designed for personal or small-scale plant cultivation, often used by gardeners or home growers to extend their growing season or care for more delicate plants. These greenhouses can range from simple backyard setups to more elaborate systems with temperature controls and automated features. Typically, they range in size from just a few square meters to larger setups but are not intended for mass production. The materials used are often basic, such as plastic film or polycarbonate, for the covering. For garden enthusiasts, hobbyist greenhouses provide the opportunity to grow a broader range of plants, including out-of-season crops, in a controlled environment. They also offer protection against pests and extreme weather conditions. However, the main challenge for hobbyists is managing the costs associated with setting up the greenhouse and ensuring effective climate control, particularly in areas with extreme temperatures.

According to TechSci Research report “ Greenhouse Nursery And Flowers Market - Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented By Types (Food Crops Grown Under Cover, Nursery & Floriculture Production), By Application (Household, Commercial), By Region, and By Competition, 2019-2029F” Global Greenhouse, Nursery, And Flowers Market was valued at USD 340.02 Billion in 2023 and is anticipated to project impressive growth in the forecast period with a CAGR of 4.01% through 2029.

3.   Research Greenhouse

Research greenhouses are specialized structures used by scientists and researchers to study plant growth, test new agricultural technologies, or examine the effects of various environmental factors on plant development. Typically found in universities, research institutions, and agricultural laboratories, these greenhouses offer highly controlled environments that enable precise experimentation. They are often equipped with sensors, data collection systems, and advanced control mechanisms for temperature, humidity, light, and soil conditions. Some even simulate specific climates or environmental conditions to enhance research accuracy. The main benefit of research greenhouses is that they provide an ideal setting for controlled experiments, allowing researchers to test hypotheses on plant biology, pest control methods, soil composition, and even the impact of climate change on crops. However, the challenges include the significant investment needed for technology and infrastructure, as well as the complexity and cost involved in maintaining such precise environmental controls.