Effect of Silicon Application on Rice Growth and Production Structure

This paper studies the effect of silicon on the growth and production structure of rice（ Oryza sativa L.）,and proposes the appropriate applying amount of silicon. The results show that the application of silicon fertilizer to rice can increase specific leaf weight and leaf area index,and improve rice yield by increasing grain number,kernel number and thousand kernel weight. The growth rate of rice yield is 3. 45%-15. 69% by applying silicon. In the Jianghan Plain,the applying amount of silicon fertilizer for rice（ SiO2） is recommended at 15-30 kg/ha.