How To Create Carbon Dioxide For Your Plants

Carbon dioxide is an essential component to plant growth. Plants grow through a process of photosynthesis which requires light and carbon dioxide. During photosynthesis, the plant produces ‘food’ that it needs to grow and gives off oxygen as a by-product.

In a sealed grow area plants are not exposed to fresh air from which they can gain the carbon dioxide they need. That is why in an indoor grow area, it is important to help the plants by safely producing carbon dioxide for them to photosynthesize. Artificial light can be produced by using high illumination lights.

Supplying your plants with sufficient carbon dioxide is not that easy. But it can be done relatively inexpensively if you follow a few easy steps. Learning how to create carbon dioxide for your plants is easy.

When using any of these methods, bear in mind that carbon dioxide and light are needed to prompt the photosynthesis cycle so using any of them in the dark will be less effective.

Method 1 – Vinegar And Baking Soda

If you take a small bucket and fill it with vinegar and then add baking soda to it you will produce some carbon dioxide for your plants. Start with about 1 inch of vinegar and a couple of teaspoons of baking soda.

The volume required will depend on the size of your grow area. You’ll need to experiment with different volumes and ratios. Following this process will give a sudden rush of carbon dioxide into your grow area. You can place a small fan next to the bucket to help circulate the carbon dioxide and allow it to spread to all your plants.

You may want to consider supplying a sustained level of carbon dioxide to your grow area by modifying your approach to this method. Instead of adding the two ingredients together in one action, let them interact by slowing adding one to the other.

If you take a soda bottle and drill a small hole in the lid then fill it with vinegar, you can hang it at a slight angle so that it drips vinegar into a bowl of baking soda. This will release the carbon dioxide at a lower level but over a longer period of time.

Use this vinegar and baking soda method in moderation. The other acids and by-products released by the vinegar will most likely not kill your plants but may affect the flavor and taste.

Method 2 – Dry Ice

Dry ice is carbon dioxide in a frozen state. As it melts you can see it releasing carbon dioxide gas into the air. You can speed up the process of releasing the carbon dioxide by pouring a little water onto the block of dry ice.

Again, a small fan placed next to the dry ice as it melts can help to circulate the carbon dioxide through the grow area. But put electrical safety first, and don’t let your fan come into contact with any water.

To release enough carbon dioxide into your grow area, you would need several blocks of dry ice a day. This can become prohibitively expensive.

Method 3 – Fermentation with Yeast

To successfully use this method, you will need the following items:

  • A large plastic soda bottle with its lid
  • Water
  • Sugar
  • Dry activated yeast (wine, ale, beer and baker’s yeast are all suitable)
  • Thin air pipes (such as those used on a nebulizer)

Follow these steps to create a successful fermentation system:

  • Drill a small hole through the lid of the soda bottle wide enough for your chosen air pipe.
  • Put 10 tablespoons of sugar and 1 tablespoon of dry yeast into the bottle.
  • Fill the bottle with water until it is about ¾ full.
  • Put the lid back on the bottle, hold it with your finger over the hole to avoid spillage and give it a vigorous shake.
  • Place the tube in the hole in the lid. Then arrange the bottle so that the end of the tube is in the center of the plant.

You’ll have to make one of these for each of your plants. As the mixture ferments, it creates alcohol and releases carbon dioxide. It can be effective for up to two weeks before it needs to be replaced.

Method 4 – Carbonated Water

Carbonated water is conventional H2O to which carbon dioxide has been added. If you water your plants with unflavored carbonated water you are giving them a carbon dioxide boost. Buying soda water can be expensive, but it is less so if you have a soda machine at home to make your own carbonated water.

Method 5 – The Human Element

The human respiratory system functions on the inhalation of oxygen and the exhalation of carbon dioxide. So the more time you spend in your grow area, the more carbon dioxide you are releasing into the air around you for your plants to photosynthesize.

Method 6 – Compost

Research suggests that adding compost and other organic materials to the soil adds carbon to the soil. Tiny soil microbes begin to consume the compost matter and in this way carbon dioxide is released. Regular turning over of the soil will speed up the release of carbon dioxide. Research into this field is still ongoing.

Conclusion – How to Optimize the Benefits of these Methods

All the methods discussed above on how to create carbon dioxide for your plants can be effective in producing carbon dioxide for your plants in an indoor grow area. Users should consider using some of the methods in combination to maximize carbon dioxide production for their plants.

It will be difficult to produce sufficient carbon dioxide using only one method. Additionally, using different methods will keep the costs of using the expensive ones lower as they are not your sole source of carbon dioxide manufacture.

Finally, don’t discount the fact that fresh air contains a lot of carbon dioxide. If possible, try to circulate some fresh air through your grow area from time to time.

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