Organo-Mineral Complexes and Their Effects on the Physico-Chemical Properties of Soils

摘要

Most arable soils contain 0.1 to 5% organic matter (OM) by weight. The lower end of this range represent sandy soils of arid zones, whereas the higher values are typical of clayey soils in temperate zones. All soils are physically and chemically influenced by the OM which they contain. In addition to the nutritional value of OM, it plays a critical role in the formation and stabilization of soil structure, which in turn produces desired tilth and drainage rates as well as resistance to erosion.