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中国农学通报

中国农学通报 ›› 2004, Vol. 20 ›› Issue (3): 114-114.

所属专题： 水稻

• 目次 • 上一篇    下一篇

硅肥对水稻群体质量及产量影响的研究

张国良,,戴其根,周 青,潘国庆,凌 励,张洪程   

  • 出版日期:2004-06-05 发布日期:2004-06-05

Influences of Silicon Fertilizer on Populication Quality and Yield in Rice

Zhang Guoliang, Dai Qigen, Zhou Qing Pan Guoqing Ling Li Zhang Hongcheng   

  • Online:2004-06-05 Published:2004-06-05

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670

摘要： 施用多效硅肥可以明显增加单位面积上群体的总颖花量和结实粒数；提高成穗率；提高叶面积指数、粒/叶和粒重/叶；显著提高花后干物质的生产积累能力；改善茎系结构，提高抗倒伏能力，从而使群体质量明显提高。研究结果表明，150 kg/hm2硅肥作基肥和分蘖肥对水稻群体质量和产量的影响效应较好,而拔节期不同硅肥用量中以225 kg/hm2效果最好。

Abstract: The result of using Si in rice showed that (1)Obviously adding gross flower number and grain.(2)Raising rate of effect ear.(3)Improving maxmum LAI, grain- leaf area ratio(grain/cm2) and leaf weght(mg/cm2).(4)Obviously raising accumulated dry matter after anthesis(5)Improving structure of stems and enhancing energy of autilodge.Thereby the population quality obviously improved.It was shown that the silicon fertilizer amount of 150kg/hm2 applied as the basic or tillering fertilizer was better for population quality and yield and that 225 kg/hm2 among the different silicon fertilizer amount at jointing stage for population quality and yield was best.