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Fig. 3 | Chemical and Biological Technologies in Agriculture

Fig. 3

From: Densely rooted rhizosphere hotspots induced around subsurface NH4 +-fertilizer depots: a home for soil PGPMs?

Fig. 3

Residual N min in the bulk soil (a) and in the NH4 +-depot (b) at 56 DAP. Different letters show significant difference between treatments, if differences were significant (P < 0.05) (mean ± SEM, n = 4, One-Way ANOVA, Tukey test, α = 0.05). Data for bulk soil NH4 +–N and total N min were transformed by square roots. Block letters: difference in total N min concentrations; small letters: difference in NH4 +–N concentrations. Yellow and green section of bars represent NH4 +–N and NO3 –N concentrations, respectively

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