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| 氮肥分期施用对夏玉米生长发育和产量的影响 | |
| 引用本文： | 郑惠玲,姬变英,武继承,史福刚.氮肥分期施用对夏玉米生长发育和产量的影响[J].河南农业科学,2007(10):67-69. |
| 作者姓名： | 郑惠玲 姬变英 武继承 史福刚 |
| 作者单位： | 1. 河南省土壤肥料站,河南,郑州,450002 2. 西平县土壤肥料站,河南,西平,463900 3. 河南省农业科学院,植物营养与资源环境研究所,河南,郑州,450002 |
| 基金项目： | 国家高技术研究发展计划(863计划)节水农业重大科技专题 , 河南省科技攻关项目 |
| 摘 要： | 在相同施氮量下,研究了不同时期施用氮肥对夏玉米生长发育和产量的影响。结果表明,在氮肥总量一定条件下,密植型玉米郑单958以氮肥作底肥和拔节期追施分期施用效果最佳,而稀植型玉米郑单21则以氮肥作基肥一次施用的效果最佳,说明不同玉米品种对氮肥需求在不同生育阶段具有明显的差异性。 |
| 关 键 词： | 夏玉米 施氮时期 产量 生长发育 |
| 文章编号： | 1004-3268（2007）10-0067-03 |
| 修稿时间： | 2007-05-11 |
Effects of Nitrogen Fertilizer Application on Terms on the Growth, Development and Yield of Corn |
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| ZHENG Hui-ling,JI Bian-ying,WU Ji-cheng,SHI Fu-gang.Effects of Nitrogen Fertilizer Application on Terms on the Growth, Development and Yield of Corn[J].Journal of Henan Agricultural Sciences,2007(10):67-69. | |
| Authors: | ZHENG Hui-ling JI Bian-ying WU Ji-cheng SHI Fu-gang |
| Abstract: | On the basis of the same volume of nitrate fertilizer application on terms, the effect of nitrate fertilizer application on the development and yield of summer corn was studied in this article. The result showed that applying N fertilizer in 2 terms (ground fertilizer and dressing in elongation stage) had the best result in increasing the yield of Zhengdan 958, a high-density variety. On the other hand, the best stage of fertilization is used as basal fertilizer for low-density variety Zhengdan 21.This suggested that the difference of fertilizer requirement was existed between different corn varieties. |
| Keywords: | Summer corn Nitrogen application stage Yield Growth and development |
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