Extended Data Table 3 Robustness checks of models testing the crop diversity–stability relationship

From: National food production stabilized by crop diversity

  1. a, b, Results for simple linear regression models using only non-standardized effective crop group diversity (n = 437) (a) and effective crop species diversity (b). c, d, Results show a complete model including the most important predictors of national yield stability as well as additional predictors. Yield stability was log-transformed and the rate of nitrogen fertilization, irrigation and country area were square-root-transformed. *P < 0.05; ***P < 0.001.