Abstract:

Abstract: The chemical fertilizers uses play an important role in promoting crop production. But the negative effects on soil quality have come out day by day with the increasing and unreasonable uses of chemical fertilizers. Soil quality is the important premise of the agricultural sustainable development, and it is the comprehensive integration of the quality of soil fertility, soil environment and soil health. According to the numerous documentations, the authors analyzed the evolution of physical and chemical properties, nutritive elements, organic substance and biologic activity of soil, and the soil contamination caused by heavy metal and nitrate on the condition of long-term uses of chemical fertilizers. The results showed that the eco-agriculture which is suitable for local conditions should be developed. At the same time, the soil quality must be highly valued as an important part of the agricultural sustainable development.