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Fig. 3 | SpringerPlus

Fig. 3

From: Application of ionomics to plant and soil in fields under long-term fertilizer trials

Fig. 3

Heat-map analysis of changes in the translocation ratio of each element in maize grown under different nutrient conditions. +NPK, complete fertilization; −N, fertilization without N; −P, fertilization without P; −K, fertilization without K; −NPK, no fertilization. The translocation ratio for each element is the ratio of the concentration in leaves to the concentration in soil. For soil, concentrations of 0.1 M HCl-extractable elements, except those of N and Cs, are presented. For soil N and Cs concentrations, the water-extractable and total concentrations, respectively, are used. Hierarchical clustering was used to arrange the elements based on their translocation ratio. r: Relative translocation ratio with respect to the +NPK treatment

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