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. 2017 Jun 23;8:1080. doi: 10.3389/fpls.2017.01080

Figure 5.

Figure 5

Relationships between nitrous oxide (N2O) emission and (A) grain N (GNU) and (B) total N uptake (TNU), net N balance for (C) grain N [NNB(GNU)], (D) total N uptake [NNB(TNU)] and (E) surplus N (SN), and (F) N recovery efficiency (NRE) when N was applied at early/regular sidedress (V6) and late sidedress (V14) in Minnesota. n = number of N rate groups, and points within each n group are mean values of 2 observations.