Effects of Biochar Amendment on Tomato Bacterial Wilt Resistance and Soil Microbial Amount and Activity

Figure 4

Effects of biochar amendment and R. solanacearum on the amount of soil bacteria (a), actinomycetes (b), and fungi (c). CK, no biochar and no R. solanacearum inoculation; Rs, R. solanacearum inoculation; BC1 + Rs, peanut biochar amendment and R. solanacearum inoculation; BC2 + Rs, wheat biochar (BC2) amendment and R. solanacearum inoculation. Different letters on the columns denote a significant difference at using the DMRT (Duncan’s new multiple range tests) method.

(a)

(b)

(c)