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| 旱作技术对水稻中期群体结构的影响 | |
| 引用本文： | 叶永印,潭海宾,Ibrahim,杜春来.旱作技术对水稻中期群体结构的影响[J].贵州农业科学,2007,35(3):40-43. |
| 作者姓名： | 叶永印 潭海宾 Ibrahim 杜春来 |
| 作者单位： | 1. 毕节地区农业科学研究所,贵州,毕节,551700 2. 四川省南充市嘉陵区农业局,四川,南充,637005 3. 尼日利亚卡登纳州Lamda农场 4. 辽宁省辽阳市太子河区农业技术推广中心,辽宁,辽阳,111000 |
| 基金项目： | 中国-尼日利亚南南合作资助项目“中国杂交水稻的筛选及其旱种栽培技术研究”(Tfng250004070) |
| 摘 要： | 利用三因素二次回归旋转组合设计探索水稻旱种的施氮量、基肥施氮比例及点播密度对水稻抽穗期群体的有效穗、单茎重的影响。结果表明:适宜的施氮量、基肥施氮比例及点播密度将形成抽穗期群体适宜的有效穗、较高的单茎重和茎鞘重/叶重比值。通过改进旱作技术,可使旱作水稻群体形成适宜的有效穗,个体充分生长,并促进抽穗前群体合成的净光合物质由叶流向茎,形成壮蘖、大穗,并控制叶的生长而实现高产。 |
| 关 键 词： | 群体结构 二次回归旋转组合设计 施氮量 基肥施氮比例 点播密度 茎鞘重/叶重比值 |
| 文章编号： | 1001-3601（2007）03-0120-0040-04 |
| 修稿时间： | 2007-02-01 |
Effects of Dry Farming Techniques on Effective Spike and Single Stern Weight of Rice Population at Heading Stage |
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| YE Yongyin,TAN Haibin,Ibrahim,DU Chunlai.Effects of Dry Farming Techniques on Effective Spike and Single Stern Weight of Rice Population at Heading Stage[J].Guizhou Agricultural Sciences,2007,35(3):40-43. | |
| Authors: | YE Yongyin TAN Haibin Ibrahim DU Chunlai |
| Institution: | 1. Bijie Institute of Agricultural Sciences, Bijie, Guizhou 551700 ; 2. Agriculture Bureau of Jialing District, Nanchong, Sichuan 637005; 3. Lamda Farm, Kaduna, Nigeria; 4. Taizihe Centre of Popularizing Agriculture Technique, Liaoyang, Liaoning 111000, China |
| Abstract: | The quadratic regression rotation combination design was used to investigate effects of applying nitrogen amount,ratio of nitrogen as base manure and density of spot seeding on effective spikes and single stem weight of rice population at heading stage.The results showed that the suitable applying nitrogen amount,ratio of nitrogen as base manure and density of spot seeding benefited to forming the right effective spikes,improving single stem weight and value of stem/leaf weight at heading stage of rice population.Therefore,the improved dry farming technique can gain the higher rice yield by forming the right effective spikes,promoting plant growth,forming strong tillers and big spikes and controlling leaf growth. |
| Keywords: | population structure quadratic regression rotation combination design applying nitrogen amount ratio of nitrogen as base manure density of spot seeding value of stem/leaf weight |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |