Fig. 4 | Scientific Reports

Fig. 4

From: Combined application of calcium fertilizer improves the immobilization of biochar-ferromanganese materials on cd/as co-polluted paddy soils under acidifying conditions

Fig. 4

Dynamic effects of BFM and calcium fertilizer (A and B: CaO; C and D: CMP) treatment on soil pH under soil acidification conditions. CK: no BFM and calcium fertilizer added, 0.5BFM: added with 0.5% BFM, 1BFM: added with 1%BFM; CaO: added with CaO; CMP: added with calcium-magnesium phosphate fertilizer; 25 and 50 represent adding 25 and 50 kg/acre of calcium fertilizer, respectively.Error bars represent mean ± standard deviation (n=3); Significant differences between treatments throughout the incubation period are shown in Table S4 and 5.

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