中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 施氮量对宜香系列杂交稻组合产量形成及氮肥利用率的影响 西南农业学报 2014,27 (6) 2432-2439
Position: Home > Articles > Effect of Nitrogen Application Rate on Yield Formation and Nitrogen Use Efficiency of Series of Hybrid Rice Combination Derived from Yixiang 1 A Southwest China Journal of Agricultural Sciences 2014,27 (6) 2432-2439

施氮量对宜香系列杂交稻组合产量形成及氮肥利用率的影响

作  者：
江青山;蒋鹏;陈家彬;姜方洪;赵德明;王峰;廖宗永;林纲
单  位：
宜宾市农业科学院;四川省农业科学院水稻高粱研究所
关键词：
施氮量;产量;氮肥利用率;杂交稻
摘  要：
以冈优725为对照,研究了不同施氮量对7个宜香系列杂交稻组合的干物质生产特性、产量形成特点、氮素吸收规律及氮肥利用率的影响。结果表明,与冈优725相比,在75 kg N·hm-2下,宜香1108、宜香1577和宜香7808有效穗较多、结实率较高、成熟期干物质及齐穗至成熟期的干物质积累量大,分别增产0.7%、0.5%和5.2%,成熟期氮素吸收量、氮肥偏生产力、氮肥吸收利用率均较冈优725高;在150 kg N·hm-2下,宜香1577、宜香1979、宜香3003和宜香7808有效穗较多、粒重较高、收获指数较大,分别增产0.8%、0.5%、1.0%、1.4%,氮肥利用率差异不显著。可见,氮肥的适量施用和合理的施用比例,有利于提高宜香系列杂交稻组合产量和氮肥利用率。在施氮量75~150 kg N·hm-2范围内,施氮量不是高产的限制因子。宜香系列杂交稻组合的有效穗较多,提高每穗粒数和结实率是获得高产的可能途径。
译  名：
Effect of Nitrogen Application Rate on Yield Formation and Nitrogen Use Efficiency of Series of Hybrid Rice Combination Derived from Yixiang 1 A
作  者：
JIANG Qing-shan;JIANG Peng;CHEN Jia-bin;JIANG Fang-hong;ZHAO De-ming;WANG Feng;LIAO Zong-yong;LIN Gang;Yibing Academy of Agricultural Sciences;Rice and Sorghum Institute,Sichuan Academy of Agricultural Sciences;
关键词：
Nitrogen application rate;;Grain yield;;Nitrogen use efficiency;;Hybrid rice
摘  要：
The dry matter production characteristics,yield formation,nitrogen uptake characteristics as well as nitrogen use efficiency were studied by using seven hybrid rice combinations derived from Yixiang 1A as material and Gangyou725 as a control grown under different nitrogen application rates. The result showed that: The grain yield of Yixiang1108,Yixiang1577 and Yixiang7808,which grown under 75 kg N ha- 1,were higher by 0. 7 %,0. 5 % and 5. 2 % than that of Gangyou725,respectively,mainly due to the contribution of higher panicles per m2,grain-filling percentage,total dry matter and biomass accumulation from heading to physiological maturity. The total nitrogen uptake,nitrogen partial factor production and nitrogen recovery efficiency of Yixiang1108,Yixiang1577 and Yixiang7808 was higher than those of Gangyou 725. The grain yield of Yixiang1577,Yixiang1979,Yixiang3003 and Yixiang7808,which grew under 150 kg N ha- 1,were higher by 0. 8 %,0. 5 %,1. 0 % and 1. 4 % than that of Gangyou725,respectively,mainly due to the contribution of higher panicles per m2,grain weight and harvest index. A no significant difference in nitrogen use efficiency was observed. Thus,the appropriate N rate and rational application ratio of fertilizer-N could increase grain yield and nitrogen use efficiency of hybrid rice combinations derived from Yixiang1 A. The fertilizer rate in the range from 75- 150 kg N ha- 1was not the limiting factor for harvest yield performance. Hybrid rice combinations derived from Yixiang 1A produced more panicles per m2,it is feasible to achieve high grain yield through increase of spikelets per panicle and grain-filling percentage.

相似文章

导出引用
计量
文章访问数: 3
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46