华北农学报 ›› 2017, Vol. 32 ›› Issue (3): 196-200. doi: 10.7668/hbnxb.2017.03.030

所属专题: 玉米

• 论文 • 上一篇    下一篇

不同密氮模式下高产玉米品种籽粒产量与氮素利用特性研究

臧贺藏1, 王言景2, 张杰1, 冯晓1, 胡峰1, 赵晴1, 李国强1, 郑国清1   

  1. 1. 河南省农业科学院 农业经济与信息研究所, 河南 郑州 450002;
    2. 郑州师范学院 初等教育学院, 河南 郑州 450044
  • 收稿日期:2017-01-16 出版日期:2017-06-28
  • 通讯作者: 郑国清(1964-),男,河南淅川人,研究员,博士,主要从事农业信息技术研究。
  • 作者简介:臧贺藏(1983-),女,河南驻马店人,助理研究员,博士,主要从事作物生理生态和农业信息技术研究。
  • 基金资助:
    河南省重大科技专项(121100110900);河南省农业科学院自主创新专项基金项目(2017ZC59);河南省科技攻关项目(162102210377)

Grain Yield and Nitrogen Use Characteristics of High-yield Maize Cultivars under Different Density and Nitrogen Regimes

ZANG Hecang1, WANG Yanjing2, ZHANG Jie1, FENG Xiao1, HU Feng1, ZHAO Qing1, LI Guoqiang1, ZHENG Guoqing1   

  1. 1. Agricultural Economy & Information Research Institution, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    2. Elementary Education Dpartment, Zhengzhou Normal University, Zhengzhou 450044, China
  • Received:2017-01-16 Published:2017-06-28

摘要: 为给玉米高产高效栽培提供科学依据,在大田试验条件下,选用郑单958和先玉335为材料,在每个品种下设置2个种植密度(6.75,8.25万株/hm2)和4个施氮水平(0,180,240,300 kg/hm2),研究了种植密度和施氮水平下2个高产玉米品种籽粒产量和氮素吸收利用特性。结果表明:在相同密度水平下,2个玉米品种籽粒产量、氮素积累量和蛋白质产量均随施氮量增加总体呈现增加趋势,氮素利用效率则降低;在相同施氮水平下,2个玉米品种籽粒产量、氮素积累量和蛋白质产量均随密度的增加总体呈现增加趋势,氮素利用效率则降低。在不同密氮组合下,先玉335的籽粒产量、氮素积累量、蛋白质产量及氮素利用效率均高于郑单958。本研究条件下,2个玉米品种在密度为8.25万株/hm2,施氮量为240 kg/hm2组合下,均可以同步协调实现籽粒产量、蛋白质产量和氮素利用效率的协调统一。

关键词: 玉米品种, 种植密度, 氮肥, 氮素积累, 籽粒产量, 氮素利用效率

Abstract: Excessive nitrogen (N) fertilizer application and planting density,outdated fertilization techniques,and non-optimal planting patterns are current cultivation problems with summer maize among smallholders in North China. The objective of this study was to study the effects of planting density and N fertilizer on yield,nitrogen use characteristics and protein yield of summer maize cultivars in North China. Under field experiment,using two high-yield maize cultivars,ZD 958 and XY 335. Planting density were 6.75×104 and 8.25×104 plants per hectare,and four nitrogen application rates were arranged with 0,180,240,300 kg/ha. The results showed that under the same planting density,with the increase of N application rate,grain yield,N accumulation and protein yield were overall showed a trend of increase in two maize cultivars,while N use efficiency were decreased. Under the same N level,with the increase of planting density,grain yield,N accumulation and protein yield were overall showed a trend of increase in two maize cultivars,while N use efficiency was decreased. Under different planting density and N fertilizer rate,grain yield,N accumulation,protein yield and N use efficiency of XY 335 was higher than that of ZD 958. These results indicated that planting density was 8.25×104 per plants hectare,N application rate was 240 kg/ha,two maize varieties had higher grain yield,N efficiency and protein yield,to obtain coordination of high yield,protein yield and N use efficiency.

Key words: Maize cultivars, Planting density, Nitrogen fertilizer, Nitrogen accumulation, Grain yield, Nitrogen use efficiency

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引用本文

臧贺藏, 王言景, 张杰, 冯晓, 胡峰, 赵晴, 李国强, 郑国清. 不同密氮模式下高产玉米品种籽粒产量与氮素利用特性研究[J]. 华北农学报, 2017, 32(3): 196-200. doi: 10.7668/hbnxb.2017.03.030.

ZANG Hecang, WANG Yanjing, ZHANG Jie, FENG Xiao, HU Feng, ZHAO Qing, LI Guoqiang, ZHENG Guoqing. Grain Yield and Nitrogen Use Characteristics of High-yield Maize Cultivars under Different Density and Nitrogen Regimes[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(3): 196-200. doi: 10.7668/hbnxb.2017.03.030.

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