Question
It is expensive to add carbon dioxide to glasshouses. Suggest a suitable concentration of carbon dioxide
to add to a glasshouse in high light intensity, to obtain a good financial return from the sale of the crop.
Explain your answer.
Answer
A suitable concentration of carbon dioxide to add to a glasshouse in high light intensity is around 1000-1200 parts per million (ppm). This concentration has been shown to increase plant growth and yield, leading to a higher financial return from the sale of the crop. However, it is important to monitor the concentration of carbon dioxide regularly to avoid exceeding the recommended levels, which can be harmful to plants and humans.