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Greenhouse CO₂ Enrichment

Keep your CO₂ levels where you need them for an increased crop yield

Are you looking to increase your greenhouse crop production? Or do you wish to start growing and harvesting your plants earlier in the season?

CO₂ assimilation is key for the photosynthesis process that stimulates the growth of your crops. Inside the greenhouse, when the plants' CO₂ consumption is greater than the supply from greenhouse openings, the CO₂ concentration decreases below the atmospheric level (350 ppm). This limits the photosynthesis process and corresponding plant growth.

Therefore, keeping the atmospheric CO₂ in your greenhouse at an optimal level may prove a yield worthy exercise (up to 20% - 40% yield increase).

Whether you need a simple CO₂ enrichment programme, or a dynamic enrichment strategy our experts can help you get to the ideal CO₂ concentration for your plants to successfully grow, no matter the weather outside.
Tomatoes on vine

Why Optimise the Atmospheric CO₂ Levels in Your Greenhouse?

  • Considerably increases the photosynthetic efficiency of your plants, and the crop yield
  • Avoids vegetative stop during maximum solar radiation
  • Leads to an optimised homogenisation of size and characteristics of fruit
  • Increases the foliar surface

Ask the Expert

Neil Hansford - Food Technology Expert, UK

Neil Hansford

Food Technology Expert, UK

“Will the CO₂ enrichment be yield worthy for my crop/greenhouse setup?”
Greenhouses circumstances can vary a lot. This is why we have developed a tool to estimate the yield increase for each specific case.


Air Products gases, typically provided in gaseous and liquid form, enable customers in a wide range of industries to improve their environmental performance, product quality, and productivity.

Carbon Dioxide

Our experienced applications teams across the globe can use their industry and application knowledge to provide you with a compressed or liquid carbon dioxide supply and technology solution to meet your unique needs.

Cylinders & Hard Goods

The traditional solution for low-volume gas supply. Cylinders can be supplied in a full range of sizes, pressures and gas purities for a range of gases and gas mixtures. Search our extensive network of distributors in the U.S. and parts of Canada for your cylinder and hard goods supply needs.

Bulk Supply

Delivered by truck and stored on your site either as a liquid in cryogenic tanks or as a gas in high-pressure tubes based on your volume, desired pressure, purity level, flow rate, and operating pattern.

CryoEase® Microbulk Solutions

A convenient and cost-effective solution for larger operations. CryoEase® tanks are available in a range of sizes. The CryoEase® service simplifies your gas supply by eliminating the need to handle cylinders, stock taking and ordering.

Curious about greenhouse CO₂ enrichment?

Book a free consultation with one of our experts.

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