Selenium supplementation for plant growth

Selenium granules are a common inorganic nanomaterial with many excellent properties and application prospects. Selenium granules are a solid with a gray metallic luster. Selenium particles are brittle, toxic, and conductive, and their conductivity changes sharply with the intensity of light. Selenium particles can be oxidized by nitric acid and dissolved in concentrated alkaline solution, and will not be oxidized at room temperature.