Figure 2 | Scientific Reports

Figure 2

From: Shoot-soil ecological stoichiometry of alfalfa under nitrogen and phosphorus fertilization in the Loess Plateau

Figure 2

Structural equation models for the paths of N and P fertilization affecting soil and shoot N and P nutrients, stoichiometry and shoot dry biomass. The final models fitted the data well: χ2 = 7.442, df = 4, χ2/df = 1.861, P = 0.114, GFI = 0.954, RMSEA = 0.135; the solid arrows indicate significant positive relations (P < 0.05), and the dashed arrow indicates no relation. Numbers near the arrows are the standardized path coefficients and the width of the arrows is proportional to the strength of the relationship. The percentages near the endogenous variables indicate the variance explained by the model (R2).

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