Fig. 4: Regressions of the composite diversity metric (CDM) for each pesticide group.
From: Crop diversity reduces pesticide use more efficiently with refined diversification strategies
a Total TFI; b Herbicide TFI; c Fungicide TFI; d Insecticide TFI; e Other TFI. The blue lines represent the linear regressions based on the TFIdiff (see ‘Methods’ for details) as a function of the CDM for each pesticide group. Each dot corresponds to one cropping system (N = 1285). Coefficients, R2 and significant levels of the regressions are presented above each sub-figure (* for P < 0.05, ** for P < 0.01, and *** for P < 0.001).
