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| 不同施肥方式对两系杂交稻产量和氮肥利用率的影响 | |
| 引用本文： | 何爱斌,刘科,孙志贵,龙继锐,田小海,张运波. 不同施肥方式对两系杂交稻产量和氮肥利用率的影响[J]. 农业科学与技术, 2014, 0(10): 1723-1726 |
| 作者姓名： | 何爱斌 刘科 孙志贵 龙继锐 田小海 张运波 |
| 作者单位： | 1. 长江大学湿地生态与农业利用教育部工程研究中心，湖北荆州 434025; 长江大学农学院，湖北荆州 434025 2. 长江大学湿地生态与农业利用教育部工程研究中心,湖北荆州,434025 3. 湖南杂交水稻研究中心,湖南长沙,410125 |
| 基金项目： | 国家科技支撑计划(2012BAD-07B02)；国家大学生创新性实验计划项目(104892013032)；作物学湖北省重点(优势)学科。Supported by Nation Key technology R&D Program，National lnnovation Experiment Program for University Students，Hubei Provincial Key Discipline of Crop Science in Yangtze University |
| 摘 要： | 该试验旨在探明尿素撒施和表层集中施肥对两系杂超级交稻产量和氮肥利用率的影响,以两系超级杂交稻Y两优1号和两优0293为供试材料,以总氮肥施肥量为180kg/hm2,分别设置为不同施用比例和不同的追肥方式,测定分蘖动态、SPAD值、叶面积指数和干物质积累的变化。结果表明:T3和T4氮肥运筹模式能显著提产量和氮肥农学利用率,合理的氮肥后移有利于产量和氮肥利用率的提高,而一次性基肥施肥方法(T2)和一次性追肥方法(T5、T6)均不能协调好源和库之间的关系。尿素追肥撒施和表层集中施肥的方法对产量和氮肥的农学利用率影响不显著。 |
| 关 键 词： | 两系超级杂交稻 氮肥撒施 集中施肥 产量 氮肥利用率 |
Effect of Different Fertilization Methods on Grain Yield and Nitrogen Agronomy Efficiency of Two-Line Super Hybrid Rice |
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| Aibin HE,Ke LlU,Zhigui SUN,Jirui LONG,Xiaohai TlAN,Yunbo ZHANG. Effect of Different Fertilization Methods on Grain Yield and Nitrogen Agronomy Efficiency of Two-Line Super Hybrid Rice[J]. Agricultural Science ＆ Technology, 2014, 0(10): 1723-1726 | |
| Authors: | Aibin HE Ke LlU Zhigui SUN Jirui LONG Xiaohai TlAN Yunbo ZHANG |
| Affiliation: | Aibin HE, Ke LlU, Zhigui SUN, Jirui LONG, Xiaohai TlAN, Yunbo ZHANG (1. Engineering Research Center of Ecology and Agricultural Use of Wetland,Ministry of Education, Jingzhou 434025, China; 2. Agricultural College, Yangtze University, Jingzhou 434025, China; 3. Hunan Hybrid Rice Research Center, Changsha 410125,China) |
| Abstract: | ln order to explore the effect of broadcast application of urea （BR-U） and surface concentrated-fertilization on grain yield and nitrogen agronomy efficiency of two-line super hybrid rice, this experiment was conducted with super hybrid rice Y-Liangyou 1 and Liangyou 0293 to determine til ering dynamics, SPAD, LAl and dry matter accumulation. lts total N application was 180 kg/hm2 and different application rate and topdressing methods were set respectively. The results showed that grain yield and nitrogen agronomy efficiency were significantly improved with the T3 and T4 nitrogenous fertilizer application model. The improving of grain yield and nitrogen agronomy efficiency was benefited from rational postponing N application. However, neither single application of base fertilizer （T2） nor single application of topdressing fertilizer （T5 and T6） can coordinate the relationship between source and sink. Both grain yield and nitrogen agronomy efficiency were insignificantly under the broadcast application of urea and surface concentrated fertilization. |
| Keywords: | Two-line super hybrid rice Broadcast application Concentrated-fertiliza-tion Yield Nitrogen agronomy efficiency |
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