Figure 6 | Scientific Reports

Figure 6

From: Effects of biochar-based controlled release nitrogen fertilizer on nitrogen-use efficiency of oilseed rape (Brassica napus L.)

Figure 6

Effect of fertilizer treatments on nitrogen uptake (a), N agronomic efficiency (b), and nitrogen use efficiency (c) of Brassica napus. CK: untreated soil; B: soil treated with biochar; B + U: soil treated with biochar and urea; Urea: soil treated with only urea as nitrogen fertilizer; BCRNF: soil treated with BCRNF as nitrogen fertilizer. Different small letters indicate significant differences between different treatments (p < 0.05).

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