寄主植物存在与否对黑土和白浆土的载菌量有明显的影响，而对风沙土和草甸土影响不大。
Planting host plants significantly influenced the bacterium capacity of soil on black and lessive soils, but less influence on sandy and meadow soils.
大部分黑土和褐土属于较高水平，而白浆土、草甸土和棕壤偏低。
The level of available silicon is higher in Black soil and Cinnamon soil, but lower in Albic soil, Meadow soil and Brown earth.
大部分黑土和褐土属于较高水平，而白浆土、草甸土和棕壤偏低。
The level of available silicon is higher in Black soil and Cinnamon soil, but lower in Albic soil, Meadow soil and Brown earth.
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