Back Article

Figure 1. 

Nitrogen (N) uptake of rice under different atmospheric conditions for 2 years. Error bars indicate standard deviation (n = 3 within-plot subsamples). Different letters represent statistical difference at 0.05.

Figure 2. 

Soil N₂O fluxes under different atmospheric conditions for 2 years. Error bars indicate standard deviation (n = 3 within-plot subsamples). Different lowercases represent statistical difference at 0.05.

Figure 3. 

Soil N content and δ¹⁵N values in each fraction under different atmospheric conditions in the 3^rd year. Closed circles and open triangles represent soil N content and δ¹⁵N values, respectively. Error bars indicate standard deviation (n = 3 within-plot subsamples). Different lowercase and uppercase letters represent statistical differences at 0.05 in N content and δ¹⁵N, respectively.

Figure 4. 

(a) Root biomass, and (b) exudate N under different atmospheric conditions in the 3^rd year. (c) Gene copy numbers of nifH, and (d) ratio between gene copy numbers of nifH and 16S gene under different atmospheric conditions in the 2^nd year. Error bars indicate standard deviation (n = 3 within-plot subsamples). Different lowercase letters represent statistical differences at 0.05, respectively.