Study On Selenium Content Of Soil And Crop Product And Selenium-Rich Products Development Prospect Of Qinzhou

Along with special function of selenium continue to be deepen understood, selenium-rich agricultural products and industry develop rapidly. Currently, though the selenium-rich agricultural products development of Qinzhou is still in the start stage,it has wide development prospect of selenium-rich products due to its large area of selenium-rich soil and others abundant resources. In this paper, the methods of literature data collection,investigation and experiment were used, the distribution of selenium-rich soil and development status selenium-rich in the world were stated.Then the distribution of selenium-rich soil and development status selenium-rich of Qinzhou city were investigated. Selenium content of soil, soil pH, organic matter content of soil and plant species which affect crop products selenium enrichment naturally were comprehensive analyzed to illuminates that selenium content of crop products will be increased by adjustment of them. It provides the scientific basis for crop products selenium enrichment naturally. Several experiments of foliage spray with selenium agentia were conducted in rice, leechee,longan, banana and potato. The results indicated that foliage spray with selenium agentia could increased selenium content of crop products significantly. The researches provide the scientific basis for crop products selenium enrichment by artificial. Meanwhile, the advantage, existing problems and development prospect of selenium-rich products were analyzed. Final, the article also make recommendations and measures for the existing problems of developing selenium-rich products of Qinzhou city.