Fig. 2 | Scientific Reports

Fig. 2

From: Acidification-driven soil phosphorus fractionation following long-term fertilization and cessation at ukulinga mesic grassland in South Africa

Fig. 2

Soil P fractions following long-term N and P fertilization and cessation. P = Phosphorus fertiliser (super-phosphate at 28 kg P/ha); N1P = Ammonium sulphate (70 kg N/ha) + superphosphate; N2P = ammonium sulphate (141 kg N/ha) + superphosphate; N3P = ammonium sulphate (211 kg N/ha) + superphosphate; F = fertilised; C = ceased. Error bars represent the standard error, and different letters show statistical significance (p < 0.05).

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