Figure 1

From: Plant growth improvement mediated by nitrate capture in co-composted biochar

Figure 1

(A) Mean KCl-extractable Nmin of the soil mixtures used in the plant study; (B) Mean Nmin leaching loss with the drainage water after WHC determination (bars), or as relative N loss in % of the initially extractable Nmin (small black diamonds), or in % of the initially extractable Nmin plus BCcomp-bound Nmin (large blue dots); means ± s.d., n = 8. Black letters indicate significant differences (p < 0.05) in the Nmin content or -loss between biochar treatments, blue letters between %N losses (large blue dots) (two-way ANOVA and subsequent Tukey test).