湖北农业科学 ›› 2020, Vol. 59 ›› Issue (2): 20-23.doi: 10.14088/j.cnki.issn0439-8114.2020.02.004

• 育种·栽培 • 上一篇    下一篇

氮肥和播种方式对信麦9号产量和氮素利用效率的影响

谢旭东1, 周国勤1, 陈真真1, 徐宏2, 张玉博3, 张波1, 李刚1, 李宇峰1   

  1. 1. 信阳市农业科学院,河南 信阳 464000;
    2. 潢川县农业科学研究所,河南 信阳 464000;
    3. 淮滨县科技局,河南 信阳 464000
  • 收稿日期:2019-03-15 发布日期:2020-04-24
  • 通讯作者: 周国勤(1974-),女,河南南阳人,副研究员,主要从事小麦高产栽培和新品种选育研究,(电话)13503769050(电子信箱)zhouguoqin74@126.com。
  • 作者简介:谢旭东(1992-),男,河南南阳人,研究实习员,主要从事小麦高产栽培和新品种选育研究,(电话)13462640962(电子信箱)13462640962@163.com
  • 基金资助:
    河南省重大科技专项(181100110200); 河南省小麦产业技术体系专项(Z2010); “十二五”国家科技支撑计划项目(2015BAD26B01)

Effects of nitrogen fertilizer and sowing methods on yield and nitrogen use efficiency of Xinmai No.9

XIE Xu-dong1, ZHOU Guo-qin1, CHEN Zhen-zhen1, XU Hong2, ZHANG Yu-bo3, ZHANG Bo1, LI Gang1, LI Yu-feng1   

  1. 1. Xinyang Academy of Agricultural Science,Xinyang 464000,Henan,China;
    2. Huangchuan County Institute of Agricultural Science,Xinyang 464000,Henan,China;
    3. Huaibin County Science and Technology Board,Xinyang 464000,Henan,China
  • Received:2019-03-15 Published:2020-04-24

摘要: 2014—2015年在河南省信阳市开展氮肥和播种方式对豫南稻茬小麦信麦9号产量和氮素利用效率的研究,设置0、150、225 kg/hm2 3个氮肥水平,撒播和条播2种播种方式。结果表明,施氮量增加有利于信麦9号产量、干物质积累、子粒氮含量的提高。不同的播种方式下,单产均以施氮量为225 kg/hm2 达到最高水平。随氮素供应的增加,植株地上部吸氮量和子粒氮积累量均有不同程度升高,但氮素吸收效率、氮素利用效率、氮素农学效率、氮素偏生产力、氮素表观回收率等参数呈下降趋势,氮素生理效率呈上升趋势。在豫南稻茬麦区目前的生产水平下,条播处理的施氮量225 kg/hm2可以获得较高的小麦产量和经济效益。

关键词: 稻茬麦, 信麦9号, 氮肥, 播种方式, 产量, 氮素利用效率

Abstract: From 2014 to 2015, the research on the yield and nitrogen use efficiency of Xinmai No.9 was carried out in Xinyang City,Henan Province. Three nitrogen fertilizer levels of 0, 150 and 225 kg/hm2 were set, and two sowing methods of broadcast and drill seeding were set. The yield,dry matter accumulation and grain nitrogen content of Xinmai No.9 increased with the increase of nitrogen application. The highest yield were achieved when the nitrogen fertilizer level was 225 kg/hm2 in the two sowing methods. With the increase of nitrogen supply, the nitrogen uptake of the plant above ground and the amount of grain nitrogen accumulation increased, but the nitrogen uptake efficiency, nitrogen utilization efficiency, nitrogen agricultural use efficiency, nitrogen partial factor productivity, and the apparent nitrogen recovery efficiency were all declined, and the nitrogen physiological efficiency increased. Under the current production level of wheat after rice in south Henan province, 225 kg/hm2 of nitrogen application can obtain higher yield and economic benefits under the treatment of strip sowing.

Key words: wheat after rice, Xinmai No.9, nitrogen fertilizer, sowing method, yield, nitrogen use efficiency

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