Study on Dry Matter Accumulation and Yield Benefit Characteristics of Two High-yield Maize Cultivars Under Different Nitrogen Regimes

doi:10.11869/j.issn.100-8551.2015.12.2402

Journal of Nuclear Agricultural Sciences ›› 2015, Vol. 29 ›› Issue (12): 2402-2409.DOI: 10.11869/j.issn.100-8551.2015.12.2402

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Study on Dry Matter Accumulation and Yield Benefit Characteristics of Two High-yield Maize Cultivars Under Different Nitrogen Regimes

ZANG Hecang¹, WANG Yanjing², ZHANG Jie¹, HU Feng¹, LI Guoqiang¹, ZHENG Guoqing¹

1. Agricultural Economy & Information Research Institution, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002;
2. Elementary Education Dpartment, Zhengzhou Normal University, Zhengzhou, Henan 450044

Received:2014-07-09 Revised:2015-07-28 Online:2015-12-04 Published:2015-12-05

不同氮肥模式下2个高产玉米品种物质积累与产量效益特性研究

臧贺藏¹, 王言景², 张杰¹, 胡峰¹, 李国强¹, 郑国清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

通讯作者: 郑国清,男,研究员,主要从事农业信息技术研究.E-mail:zgqzx@hnagri.org.cn
作者简介:臧贺藏,女,助理研究员,主要从事作物生理生态和农业信息技术研究.E-mail:zanghecang@163.com;王言景,男,讲师,主要从事作物生理研究.E-mail:wangyanjing1280@163.com.
基金资助:
国家农业科技成果转化资金项目(2012GB2D000267),河南省科技成果转化项目(132201110031),河南省重大科技专项项目(121100110900),河南省科技攻关计划项目(122102110064)

Abstract

Abstract: In order to provide scientific basis for high yield and efficient maize cultivation, a field experiment was carried out at Yanjin institution of agricultural sciences in 2013 growth seasons, using two high-yield maize cultivars, Zhengdan 958 and Xianyu 335. Four nitrogen application rates were arranged with 0 kg·hm^-2, 180 kg·hm^-2, 240 kg·hm^-2 and 300 kg·hm^-2, marked as N0, N1, N2 and N3, respectively. The objective of this study was to study dry matter accumulation and yield benefit of two maize cultivars under different nitrogen regimes. The results showed that with the increase of N application rate, grain yield and economic benefits in two maize varieties increased, and grain yield and economic benefit in N2 treatment was the highest for both cultivars. Under different N regimes, grain yield and economic benefit of Xianyu 335 was higher than that of Zhengdan 958. As the growing stage delayed, leaf area index decreased in both cultivars. With increasing of N application rate, leaf area index in two maize varieties were increased. Under different N regimes, leaf area index of Xianyu 335 was higher than that of Zhengdan 958. With the increase of N application rate, population dry matter accumulation in two maize varieties have no significant difference before anthesis, while significant difference was found after anthesis. Dry matter accumulation amount after anthesis in N3 treatment was highest in both cultivars, while distribution rate was highest in N0 treatment. Under different N regimes, dry matter accumulation amount and distribution rate after anthesis of Xianyu 335 was higher than that of Zhengdan 958. These results indicated that reasonal N regimes had higher grain yield and economic benefits. The above results will provide reference and induction for efficiently cultivation of maize in summer.

Key words: maize, cultivars, nitrogen fertilizer, dry matter accumulation and distribution, grain yield, economic benefits

摘要： 为实现玉米的高产高效栽培,以高产玉米品种郑单958和先玉335为供试材料,设置4个施氮水平:0、180、240和300 kg·hm^-2,分别标记为N0、N1、N2和N3,研究并探讨不同氮肥模式下2个高产玉米品种的干物质积累量与产量效益特性.结果表明,随施氮量增加,2个玉米品种籽粒产量和经济效益均增加,且以N2处理最高,其中先玉335籽粒产量和经济效益显著高于郑单958.随生育进程的递进,2个玉米品种叶面积指数均呈降低趋势,随施氮量增加,2个玉米品种叶面积指数呈增加趋势.在不同氮肥模式下,先玉335叶面积指数、花后物质积累量和分配比例均高于郑单958.2个玉米品种群体干物质积累量在开花期之前差异不显著,其差异主要表现在开花后;2个品种花后物质积累量以N3处理最高,而分配比例则以N0处理最高.本研究可为夏玉米高产高效栽培提供理论依据和技术指导.

关键词: 玉米, 品种, 氮肥, 干物质积累与分配, 籽粒产量, 经济效益

ZANG Hecang, WANG Yanjing, ZHANG Jie, HU Feng, LI Guoqiang, ZHENG Guoqing. Study on Dry Matter Accumulation and Yield Benefit Characteristics of Two High-yield Maize Cultivars Under Different Nitrogen Regimes[J]. Journal of Nuclear Agricultural Sciences, 2015, 29(12): 2402-2409.

臧贺藏, 王言景, 张杰, 胡峰, 李国强, 郑国清. 不同氮肥模式下2个高产玉米品种物质积累与产量效益特性研究[J]. 核农学报, 2015, 29(12): 2402-2409.

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创刊：1987年
主管部门：农业农村部
主办单位：中国原子能农学会与中国农业科学院农产品加工研究所（前中国农业科学院原子能利用研究所）
ISSN：1000-8551

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Study on Dry Matter Accumulation and Yield Benefit Characteristics of Two High-yield Maize Cultivars Under Different Nitrogen Regimes

不同氮肥模式下2个高产玉米品种物质积累与产量效益特性研究

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