Fig. 5 | Scientific Reports

Fig. 5

From: Pipe experiment elucidates biochar application depth affects nitrogen leaching under crop present condition

Fig. 5

Cumulative (a) leaching of NO3−−N and (b) NH4+−N (c) drainage in the experiment, and (d) relationship between NO3−−N leaching and total nitrogen in roots. Control: no biochar; A: surface application; B: plow layer application; C: subsurface application. **, * and ns indicate a significant difference (p < 0.01 and p < 0.05) and a non-significant difference compared with the control. Error bars indicate the standard error (n = 3).

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