During panicle initiation and flowering singes, C0₂ enriched plot had the highest leaf area index (LAI) in the first year. Minimum temperature was slightly higher in C0₂ enriched plot C0₂ enriched plot had  15% and ambient plot had only 10% increase in grain yield as compare to the field. The C0₂ enriched plot had almost higher straw yield than others. It was about 30 to 37% higher than field plot. Number of tillers per square meter was highest in C0₂enriched plot followed by ambient and field plot. Plant height and panicle length were both higher in C0₂ enriched plot. C0₂ enriched plot had lesser N, P and K content in grain, straw and root. However, organic carbon (OC) content in root was more than 100% as compare to the field plot. C:N ratio were also higher except in the grain. Higher grain yield in C0₂ enriched plot was due to higher number of tillers per square meter, seeds per panicle and panicle length.

During panicle initiation and flowering singes, C0₂ enriched plot had the highest leaf area index (LAI) in the first year. Minimum temperature was slightly higher in C0₂ enriched plot C0₂ enriched plot had  15% and ambient plot had only 10% increase in grain yield as compare to the field. The C0₂ enriched plot had almost higher straw yield than others. It was about 30 to 37% higher than field plot. Number of tillers per square meter was highest in C0₂enriched plot followed by ambient and field plot. Plant height and panicle length were both higher in C0₂ enriched plot. C0₂ enriched plot had lesser N, P and K content in grain, straw and root. However, organic carbon (OC) content in root was more than 100% as compare to the field plot. C:N ratio were also higher except in the grain. Higher grain yield in C0₂ enriched plot was due to higher number of tillers per square meter, seeds per panicle and panicle length.