关键词: 60Coγ射线辐照, 60Coγ射线辐照, 烤烟品种, TSNA

Abstract:

The research in adsorption and desorption of nitrogen and phosphate is crucial to application of fertilization and environmental pollution prevention. In addition to introduce three equations-- Langmuir Equation, Temkin Equation and Freundlich Equation--which have been currently applied to describe adsorption and desorption, this thesis synthesizes the national and international wise research progress of the mechanism, the affection components (including clay content, pH index, organic matter, cation exchange capacity and mineral composition), and the kinetics equation of soil adsorption and desorption. Moreover, this thesis also proposed and suggested that the future research in a long term should be oriented in the study of the special characteristics of soil adsorption and desorption; especially the study of the special characteristics of adsorption and desorption of rhizosphere soils, and the soil from forest and nursery should be strengthened.