Table 3 Two-way ANOVA results (P > F) of the effects of biochar feedstock sources, pyrolysis temperatures, and their interactions on soil P fractions
From: Effect of biochar addition on legacy phosphorus availability in long-term cultivated arid soil
Source of variation | Resin-Pi | NaHCO3-Pi | NaHCO3-Po | NaOH-Pi | NaOH-Po | HCl-Pi | Residual-P |
|---|---|---|---|---|---|---|---|
Biochar feedstock sources (BFS) | *** | *** | *** | *** | *** | * | ** |
Pyrolysis temperature (PT) | NS | NS | *** | *** | *** | * | ** |
BFS × PT | NS | *** | *** | *** | *** | * | ** |