gcbb12037-sup-0001-TableS1.xlsapplication/msexcel57KTable S1. Author and year of the publications used in the meta-analysis. The treatments include the addition of biochar (B), fertilizer (F), or both in a factorial combination (BFC) or if fertilizer was applied to all conditions (BFF). Lifespan refers to annual (A) or perennial (P) plants, if applicable. The remaining columns refer to the number of experiments within each manuscript that measure those response variables.
gcbb12037-sup-0002-TableS2.xlsapplication/msexcel21KTable S2. The number of experiments that use activated charcoal in a similar manner as those biochar studies in this meta-analysis and the results of the Wilcoxon rank sum tests comparing effect sizes of biochar (RRB) with activated charcoal.
gcbb12037-sup-0003-TableS3.xlsapplication/msexcel24KTable S3. Results from the ‘fail safe’ analysis: G is the number of studies where significance was not reported, k is the number of studies that provided significance data for the variable of interest, inline image is the mean standard normal deviate of the k studies, and X is the number of nonsignificant studies that are necessary to reduce RRB to zero.

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