Figure 2 | Scientific Reports

Figure 2

From: The fate of fertilizer nitrogen in a high nitrate accumulated agricultural soil

Figure 2

Concentrations (left) of total extractable N (TEN, = NH4+-N + NO3−-N + EON) and non-extractable N (NEN) and their 15N recoveries (right) after the addition of (15NH4)2SO4 alone (+15NH4+) or combined with ryegrass (+15NH4++Ryegrass) to the tested soil.

Error bars are smaller than the symbol when they are not visible. Separate bars in a line indicate the range of LSD (P = 0.05) for different treatments in the same incubation time.

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