| 黄淮稻区水稻品种氮肥利用效率比较分析 |
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| 引用本文： | 孙志广,王宝祥,剧成欣,杨波,邢运高,徐波,刘艳,代慧敏,李景芳,迟铭,刘金波,李健,陈庭木,卢百关,方兆伟,徐大勇.黄淮稻区水稻品种氮肥利用效率比较分析[J].作物研究,2019(4):251-257. |
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| 作者姓名： | 孙志广 王宝祥 剧成欣 杨波 邢运高 徐波 刘艳 代慧敏 李景芳 迟铭 刘金波 李健 陈庭木 卢百关 方兆伟 徐大勇 |
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| 作者单位： | 江苏徐淮地区连云港农业科学研究所/江苏省现代作物生产协同创新中心;扬州大学 |
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| 基金项目： | 国家七大育种专项(2017YFD0100400);江苏省农业重大品种创制项目(PZCZ201704);连云港市财政专项(QNJJ1801,QNJJ1902) |
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| 摘 要： | 为探明不同施氮水平对水稻品种氮肥利用率和农艺性状的影响,以适宜黄淮稻区的18个粳稻品种为材料,田间种植,设置4个施氮水平(0、225、300和375 kg/hm^2),研究各品种氮肥利用率和农艺性状的变化规律.结果表明:不同施氮水平下,各品种的氮肥农学利用率及其农艺性状差异显著;株高、有效穗数和全生育期与施氮量呈正相关关系;结实率和氮肥偏生产力与施氮量呈负相关关系;穗长、每穗粒数、千粒重、单株谷重和氮肥农学利用率随氮肥的施加出现先增加后降低的趋势.隶属度函数和K-均值聚类分析结果显示,综合评价氮肥利用效率最高的3个品种为连粳16117、连粳15号和新粮12号.
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| 关 键 词： | 水稻 施肥 氮肥利用效率 黄淮稻区 |
Comparative Study on Nitrogen Fertilizer Use Efficiency of Rice Varieties in Huanghuai Rice Region |
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| SUN Zhiguang,WANG Baoxiang,JU Chengxin,YANG Bo,XING Yungao,XU Bo,LIU Yan,DAI Huimin,LI Jingfang,CHI Ming,LIU Jinbo,LI Jian,CHEN Tingmu,LU Baiguan,FANG Zhaowei,XU Dayong.Comparative Study on Nitrogen Fertilizer Use Efficiency of Rice Varieties in Huanghuai Rice Region[J].Crop Research,2019(4):251-257. |
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| Authors: | SUN Zhiguang WANG Baoxiang JU Chengxin YANG Bo XING Yungao XU Bo LIU Yan DAI Huimin LI Jingfang CHI Ming LIU Jinbo LI Jian CHEN Tingmu LU Baiguan FANG Zhaowei XU Dayong |
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| Institution: | (Lianyungang Institute of Agricultural Sciences in Xuhuai Area of Jiangsu/Jiangsu Collaborative Innovation Center for Modern Corp Production,Lianyungang,Jiangsu 222006,China;Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology,Yangzhou University,Yangzhou,Jiangsu 225009,China) |
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| Abstract: | To clarify the difference in agronomic traits among rice varieties under different nitrogen application levels,18 japonica rice varieties suitable for Huanghuai Region were selected as materials,four treatments of zero N( N0),225 kg/hm2 N( N225),300 kg/hm2 N( N300) and 375 kg/hm2 N( N375) were designed. The results showed that the nitrogen agronomy efficiency and agronomic traits varied significantly under different nitrogen application levels;plant height,panicles number per plant and whole growth period were positively correlated with nitrogen application;the seed setting rate and nitrogen partial factor productivity were negatively correlated with nitrogen application;the panicles length,grains per panicle,1000-grains weight and grain weight per plant increased first and then decreased with the increase in nitrogen application. The membership function was carried out by normalization treatment,the three varieties with the highest comprehensive evaluation index were Lianjing 16117,Lianjing 15 and Xinliang 12,higher yield and nitrogen agronomy efficiency were also observed in these varieties. |
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| Keywords: | rice fertilization nitrogen fertilizer use efficiency Huanghuai rice region |
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