Fig. 4
From: Organic matter in the pest and plant disease control: a meta-analysis
A Influence of organic matter sources on the inhibition of pests and diseases in plants. Where: Squares correspond to the mean effect size and the error bars to the 95% confidence; CI Confidence Interval; Lozenge corresponds to the final effect size of the studies included in the meta-analysis. B Principal Component Analysis (PCA) of effectiveness in pest and disease control vs. organic matter sources. 84.56% was the percentage of variance explained by PC1 + PC 2, by the Monte Carlo permutation test, p < 0.0099257. C Compost; V Vermicompost; CT Compost Tea; VT Vermicompost Tea; HS Humic substances; Comb Combinations (Vermicompost + Microorganisms, Compost + Microorganisms, Humic Acid + Microorganisms, Vermicompost + Humic Acid, Vermicompost + Vermicompost Tea, Compost + Charcoal, Humic acid + Chitosan); Others – Biofertilizer and Charcoal