Table 1.

Experimental design of free-air CO₂ enrichment, elevated surface water-soil temperature and low nitrogen

Atmosphere	Ambient			FACEa
Temperature	Ambient	Elevatedb	Ambient	Ambient	Elevated	Ambient
Fertilization	Standard	Standard	Low nitrogenc	Standard	Standard	Low nitrogen
Plot name	AMBI-NT	AMBI-ET	AMBI-LN	FACE-NT	FACE-ET	FACE-LN

^aRice plants grown under the free-air CO₂ enrichment condition.

^bRice plants grown in elevated surface water-soil temperature (2°C above abient temperature).

^cRice plants grown with no nitrogen fertilization.