Journal of Agricultural Science and Technology ›› 2021, Vol. 23 ›› Issue (1): 136-145.DOI: 10.13304/j.nykjdb.2019.0673

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Influences of the Interaction between Nitrogen Fertilizer Application Rate and Transpanting Density on Kenjing 7 Rice Quality

LAN Yuchen1, GUO Xiaohong1*, LI Meng 2, ZHAO Yang3, LI Xiaolei3, JIANG Hongfang1, WANG Heying1, XU Lingqi1, ZHANG Xiaoning1, LYU Yandong1   

  1. 1.Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, College of Agronomy, Heilongjiang Bayi Agricultural University, Heilongjiang Daqing 163319, China; 
    2.Agricultural Technology Extension Station of Mudanjiang City, Heilongjiang Mudanjiang 157000, China; 
    3.Beidahuang Kenfeng Seed Industry Co., Ltd., Harbin 150090, China
  • Received:2019-08-20 Online:2021-01-15 Published:2019-10-30

施氮量与移栽密度互作对垦粳7号稻米品质的影响

兰宇辰1,郭晓红1*,李猛2,赵洋3,李晓蕾3,姜红芳1,王鹤璎1,徐令旗1,张晓宁1,吕艳东1   

  1. 1.黑龙江八一农垦大学农学院, 黑龙江省现代农业栽培技术与作物种质改良重点实验室, 黑龙江 大庆 163319; 
    2.牡丹江市农业技术推广总站, 黑龙江 牡丹江 157000;
    3.北大荒垦丰种业股份有限公司, 哈尔滨 150090
  • 通讯作者: 郭晓红 E-mail:guoxh1980@163.com
  • 作者简介:兰宇辰 E-mail: 364034925@qq.com
  • 基金资助:
    国家重点研发计划项目(2016YFD0300104);
    黑龙江省自然基金面上项目(C2017046);
    黑龙江八一农垦大学青年创新人才项目(CXRC2017001);
    黑龙江八一农垦大学科研团队平台支持计划项目(TDJH201802);
    黑龙江八一农垦大学校启动计划项目(XDB-2016-02);
    黑龙江八一农垦大学农学院研究生创新项目(YJSCX2019-Y104)

Abstract: In order to investigate the effect of nitrogen application rate and transplanting density on rice quality under the field conditions, this paper adopted the split-plot experiment using a cold land Japonica rice Kenjing 7 as experimental material.  The nitrogen application rate (N) was used as the main plot (pure nitrogen was 0, 90, 120, 150, 180 kg·hm-2, respectively) and the transplanting density (M) was used as the split block (20.2×104, 25.1×104, 33.3×104 hills·hm-2, respectively). The results showed that: the effect of transplanting density on the processing quality of Kenjing 7 reached extremely significant level, as the transplanting density increased, the processing quality gradually increased. When the transplanting density was 33.3×104 hills·hm-2, it was beneficial to improve the processing quality of the Kenjing 7. The interaction between nitrogen application rate and transplanting density had a significant effect on the appearance quality of Kenjing 7. When the nitrogen application rate was 180 kg·hm-2 and the transplanting density was 20.2×104 hills·hm-2, it was beneficial to improve the appearance quality. The effect of nitrogen application rate on the nutritional quality and taste score of Kenjing 7 reached an extremely significant level. With the increase of nitrogen application rate, the nutritional quality gradually increased, and the taste quality gradually decreased. When the nitrogen application rate was 180 kg·hm-2 and the transplanting density was 20.2×104 hills·hm-2, it was beneficial to improve the nutritional quality of the Kenjing 7 but the taste quality of Kenjing 7 was reduced. In summary, the appearance quality and nutritional quality of Kenjing 7 were comparatively excellent under the treatment with 180 kg·hm-2 of pure nitrogen and 20.2×104 hills·hm-2 of transplanting density (N4M1).

Key words: rice, nitrogen application rate, transplanting density, processing quality, appearance quality, nutritional quality, taste quality

摘要: 为探讨施氮量及移栽密度对稻米品质的影响,在大田条件下,以垦粳7号为试验材料,采用裂区试验设计,以施氮量(0、90、120、150、180 kg·hm-2,N)为主区和移栽密度(20.2万、25.1万、33.3万穴·hm-2,M)为裂区,分析了氮密互作对稻米加工品质、外观品质、营养品质和食味品质的影响。结果表明:移栽密度对垦粳7号加工品质的影响达极显著水平,随移栽密度增加,加工品质逐渐增加,移栽密度为33.3万穴·hm-2时,有利于提高垦粳7号的加工品质。施氮量与移栽密度的互作效应对垦粳7号外观品质的影响达显著水平,施氮量为180 kg·hm-2、移栽密度为20.2 万穴·hm-2时,有利于提高垦粳7号的外观品质。施氮量对垦粳7号营养品质和食味品质的影响达极显著水平,随施氮量增加,营养品质逐渐增加,食味品质逐渐降低;施氮量为180 kg·hm-2、移栽密度为20.2万穴·hm-2时,有利于提高垦粳7号的营养品质,而食味品质降低。综上,N4M1处理(180 kg·hm-2和20.2 万穴·hm-2)下,垦粳7号的外观品质和营养品质较优。

关键词: 水稻, 施氮量, 移栽密度, 加工品质, 外观品质, 营养品质, 食味品质