| 氮肥运筹对寒地粳稻氮肥利用率及产量影响的研究 |
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| 引用本文： | 许晶,赵宏伟,杜晓东,刘海彬. 氮肥运筹对寒地粳稻氮肥利用率及产量影响的研究[J]. 作物杂志, 2011, 0(3): 86-90 |
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| 作者姓名： | 许晶 赵宏伟 杜晓东 刘海彬 |
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| 作者单位： | 1. 东北农业大学水稻研究所,150030,黑龙江,哈尔滨
2. 哈尔滨拓荒农业开发有限公司,150040,黑龙江,哈尔滨 |
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| 基金项目： | 国家科技支撑项目，东北农业大学创新团队项目，跨越计划项目，省科技攻关计划重大项目 |
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| 摘 要： | 以松粳6号和松粳9号为试验材料,在同一施氮水平(纯氮150kg/hm2)下,按基肥、蘖肥、穗肥和粒肥不同施氮比例设计5种氮肥运筹方式,研究氮肥运筹对寒地粳稻氮肥利用率及产量的影响。结果表明,不同的氮肥运筹方式对氮肥利用率影响显著,M2处理(50%N作基施、30%N作分蘖肥、10%N作穗肥、10%N作粒肥)的氮肥吸收利用率显著高于其他处理;施粒肥对氮肥的生理利用率、农学利用率影响显著,均高于未施粒肥处理;两品种M2、M3处理产量较高;氮肥吸收利用率与单位面积穗数、穗粒数以及产量呈显著正相关;农学利用率与产量呈极显著正相关。氮肥的基肥施用比例与产量呈抛物线关系,松粳6号的氮肥基肥比例为45.23%时,可获得理论最高产量,而松粳9号获得理论最高产量的氮肥基肥比例为45.84%。
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| 关 键 词： | 寒地粳稻 氮肥运筹 氮肥利用率 产量 |
Effects of Nitrogen Application on Nitrogen Use Efficiency and Yield of Japonica Rice in the Cold Region |
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| Xu Jing,Zhao Hongwei,Du Xiaodong,Liu Haibin. Effects of Nitrogen Application on Nitrogen Use Efficiency and Yield of Japonica Rice in the Cold Region[J]. Crops, 2011, 0(3): 86-90 |
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| Authors: | Xu Jing Zhao Hongwei Du Xiaodong Liu Haibin |
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| Affiliation: | Xu Jing1,Zhao Hongwei1,Du Xiaodong1,Liu Haibin2(1Rice Institute of Northeast Agricultural University,Harbin 150030,Heilongjiang,2Harbin Tuohuang Agricultural Development Ltd.,Harbin 150040,China) |
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| Abstract: | Songjing 6 and songjing 9 were used to investigate the effects of different nitrogen application on nitrogen use efficiency and yield of japonica rice in the cold region,with five treatments of nitrogen application which was based on the different proportion of basal,tillering,panicle and granular fertilizer at the same nitrogen level(fertilizing 150 kg pure nitrogen in each hectare field).The results showed that nitrogen use efficiency was significantly affected by different nitrogen application.The nitrog... |
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| Keywords: | Japonica rice in cold region Nitrogen application Efficiency of N Yield |
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