Climate warming shows great seasonal differences and diurnal variations with higher warming rate at nighttime, and will consequently cause significant impacts on crop production. Since most previous researches on the responses of crop growing to climate warming, especially asymmetric warming, are mainly based on modeling and historic data analyses, there are still great uncertainties remaining on the regional projections of crop production under future climate. Rice (Oryza sativa L.) is the most important stable food crop in China. Understanding of the realistic responses of rice growing to different climate warming regimes will benefit the technique selection for the adaptation of rice production to future climate warming. Therefore, we designed an experimental warming facility with three warming scenarios (AW: all-day warming; DW: daytime warming; NW: nighttime warming) using Free Air Temperature Increased (FATI) technique in 2007 and 2008 in Nanjing city, Jiangsu province, China. The results showed that this warming facility formed 4 m² of evenly and reliably warming area both at daytime and at nighttime. The daily mean temperatures in the crop canopy of the AW, DW and NW plots were 2.0℃, 0.6℃ and 0.9℃ higher than those in the un-warmed plots, respectively. DW increased the daily mean temperature during daytime of rice canopy by 1.1℃, and NW increased mean night temperature by 1.8℃, similar to the projected warming levels. The changes of daily temperature range were 0.1℃, 0.6℃ and -0.9℃ in the AW, DW and NW, respectively. The diurnal trends of temperature change in the crop canopy in different stages and the diurnal mean temperatures during the whole growing duration under warming plots were all similar to those under control. Meanwhile, field warming with this FATI facility caused significant impacts on rice growth durations. The durations from transplanting date to the initial heading date were respectively shorten by 3.5 days, 2 days and 2.5 days on average in the AW, DW and NW plots during the two years, while the durations from the initial heading date to the harvest kept unchanged compared to the un-warmed control. The aboveground biomass at the harvesting period were respectively declined by 7.7%、6.6% and 2.8% on average in the AW, DW and NW plots during the two years, though there was no significant difference existed between the treatments. Meanwhile, DW and NW decreased grain yield by 8.9% and 4.5%, respectively, while AW slightly increased grain yield on average during 2007-2008. There was increasing trends of effective panicles numbers and seed setting rate, and decreasing trends of grains numbers per spike and 1000-grain weight under the warmed plots. There was no obvious impact of warming on rice height. These results suggest that our field warming system under FATI facility is suitable to study the actual responses and adaptations of rice growing duration and productivity to climate warming at system-level in situ. The significant differences in warming effects on rice growing duration and yield between the three warming scenarios suggest that the outputs from crop modeling for the assessment of climate warming influences on rice production needs be tested under field experiments and the parameters for crop modeling also need be further improved based on field warming.