土壤中微量元素的有效含量及其分布受多种因素的影响,除上述土壤类型之外,主要有以下几种: 1.成土母质土壤中锌硼铜锰铁的有效含量与不同成土母质的关系列于表4。因为土壤是发育在各种岩性母质上,常因母质类型、矿物组分和性质不同。使各种元素在土壤中都有明显差异。并 The effective content of soil microelement and its distribution are affected by many factors, in addition to the above types of soil, there are the following: 1. Mother soil soil zinc and boron copper ferromanganese effective content and different soil parent material The relationship is shown in Table 4. Because the soil is developed in a variety of lithological parent material, often due to the type of parent material, mineral composition and nature of different. So that various elements in the soil are significantly different. and