Effects of CO₂ Concentrations on the Growth and Yield of Cotton

Experiments of CO₂ concentration at 700ppm,500ppm and natural condition on the effects of cotton growth and development,yield formation were carried out by using OTC-1 open top chamber. The results showed that increasing CO₂ concentration especially when CO₂ concentration especially when CO₂ concentration at double level of the natural condition,the growth and development,biomass production and yield of cotton were all greatly improved.