摘要
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( SiO_2) is recommended at 15-30 kg/ha.
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( SiO_2) is recommended at 15-30 kg/ha.
基金
Supported by Project of Hubei Agricultural Science and Technology Innovation Center(2011-620-001-03)
China Program Project of International Plant Research(IPNI)(IPNI-Hubei-41)
National Soil Testing and Formulated Fertilization Fund Project(CNCT09-32)
