硅肥对水稻群体质量及产量影响研究  

Influences of Silicon Fertilizer on Populication Quality and Yield in Rice

作　　者：张国良[1] 戴其根[2] 周青[1] 潘国庆[1] 凌励[3] 张洪程[2] 

机构地区：[1]淮阴工学院农业与食品工程系,江苏淮安223001 [2]扬州大学农学院,江苏扬州225009 [3]江苏农垦集团公司,江苏南京210000

出　　处：《中国农学通报》2004年第3期114-117,共4页Chinese Agricultural Science Bulletin

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,150kg/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225kg/hm2效果最好。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.

关 键 词：硅肥 水稻 群体质量 产量 肥效 

分 类 号：S511[农业科学—作物学] S143.71