通过盆栽试验，分别探讨了镍在砂壤水稻土中对水稻和在草甸黑土中对玉米的污染效应和累积规律。
The pollution effects and accumulation rules of nickel were studied in the sandy loam paddy soil for rice and in the meadow soil for corn by pot experiments.
有效铁在红土母质中分布规律与全铁相反，在草甸黑土中表现出明显的淀积特征，其余各土类中有效铁含量分布与全铁一致。
Available Fe, on the other hand, had obvious illuviation in meadow black soil. Some other available Fe had the same rule with total Fe.
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.
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