Research on efficient activation technology of soil selenium in Hubei Province

Selenium is an essential trace element for the human body, renowned for its antioxidant properties, immune system enhancement, and potential in cancer prevention. Hubei Province possesses abundant selenium resources in its soil. Enshi Prefecture hosts the world's only independent selenium deposit, while the Jianghan Plain boasts superior quality and contiguous distribution of selenium-rich soil. This combined advantage provides a solid resource foundation for developing the selenium-rich industry in Hubei Province. However, due to factors such as soil pH, organic matter content, and redox potential, the bioavailability of selenium in the soil is low, making it difficult for crops to absorb efficiently, which constrains the development of the selenium-rich industry. This study systematically investigated technical methods for enhancing soil selenium availability through laboratory simulation experiments and field trials. Furthermore, by integrating the characteristics of selenium content and distribution in Hubei's soils, it delved into the mechanisms of different activation techniques. The research aims to provide scientific evidence and technical support for the efficient development and utilization of selenium-rich soil resources in Hubei Province.