| 不同氮肥和密度水平对京单28产量效应的研究 |
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| 引用本文： | 杨国航,陈国平,王荣焕,张春原,王宝东,刘春阁,王卫红,赵久然.不同氮肥和密度水平对京单28产量效应的研究[J].玉米科学,2008,16(4):176-178. |
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| 作者姓名： | 杨国航 陈国平 王荣焕 张春原 王宝东 刘春阁 王卫红 赵久然 |
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| 作者单位： | 1. 北京市农林科学院玉米研究中心,北京,100097
2. 北京市通州区农业技术推广服务中心,北京,101101 |
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| 基金项目： | 北京农业育种基础研究创新平台项目(YZPT02) |
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| 摘 要： | 研究了不同施氮量和密度水平对京单28的产量效应。结果表明:在施氮225kg/hm2、种植密度75000株/hm2的处理下,京单28能够获得最高产量水平和经济效益。不同施氮量和不同密度对玉米结实性都有较明显的影响,密度的增产效应大于施氮的增产效应。
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| 关 键 词： | 玉米 氮肥 密度 效应 经济效益 |
| 收稿时间： | 7/1/2008 12:00:00 AM |
Study on the Effects of Nitrogen Application and Planting Density on the Yield of Jingdan 28 |
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| YANG Guo-hang;CHEN Guo-ping;WANG Rong-huan;ZHANG Chun-yuan;WANG Bao-dong;LIU Chun-ge;WANG Wei-hong;ZHAO Jiu-ran.Study on the Effects of Nitrogen Application and Planting Density on the Yield of Jingdan 28[J].Journal of Maize Sciences,2008,16(4):176-178. |
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| Authors: | YANG Guo-hang;CHEN Guo-ping;WANG Rong-huan;ZHANG Chun-yuan;WANG Bao-dong;LIU Chun-ge;WANG Wei-hong;ZHAO Jiu-ran |
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| Abstract: | The effects of nitrogen application and planting density on the yield of Jingdan28 were studied. Results indicated that with the combination of 225 kg/ha N and 75 000 plants/ha, Jingdan28 could achieve the optimum yield and economic benefits. Both nitrogen application and planting density at different levels influenced the yield performance of Jingdan28, but the effects of planting density on the yield were much significant than that of nitrogen application. |
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| Keywords: | Study on the Effects of Nitrogen Application and Planting Density on the Yield of Jingdan 28 |
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