| 施氮量对弱筋小麦籽粒品质与氮素利用的影响 |
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| 引用本文： | 王玲玲,吴文革,李瑞,胡健,闫素辉,邵庆勤,许峰,张从宇,周永进,李文阳.施氮量对弱筋小麦籽粒品质与氮素利用的影响[J].浙江农业学报,2021,33(5):777. |
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| 作者姓名： | 王玲玲 吴文革 李瑞 胡健 闫素辉 邵庆勤 许峰 张从宇 周永进 李文阳 |
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| 作者单位： | 1.安徽科技学院 农学院,安徽 凤阳 2331002.安徽省农业科学院 水稻研究所,安徽 合肥 230031 |
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| 基金项目： | 国家重点研发计划(2016YFD0300408);国家重点研发计划(2018YFD0300900);安徽省自然科学基金(1408085MC48) |
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| 摘 要： | 为探究施氮量对弱筋小麦籽粒品质和氮素利用的影响,以弱筋品种宁麦13与皖西麦0638为材料,设置4个施氮量(折纯N 0、120、180、240 kg·hm-2),研究其对弱筋小麦籽粒产量、品质性状与氮素吸收利用的影响。结果表明,在0~240 kg·hm-2的施氮量范围内,随着施氮量增加,供试弱筋小麦的籽粒产量先增加后减少,当施氮量为180 kg·hm-2时产量最高;随着施氮量增加,供试弱筋小麦籽粒的蛋白质含量、湿面筋含量、硬度、沉降值、面团稳定时间等品质性状均呈上升趋势。供试的弱筋小麦,开花期、成熟期植株与籽粒中积累的氮均主要来源于土壤。当施氮量为120~240 kg·hm-2时,随着施氮量增加,供试弱筋小麦成熟期籽粒中积累的氮来源于肥料的量呈先增加后降低的趋势,当施氮量为180 kg·hm-2时,来源于肥料的量最高。当施氮量为120~240 kg·hm-2时,供试弱筋小麦的氮素利用效率为25.68~44.76 kg·kg-1,氮肥生产效率为25.16~50.82 kg·kg-1,随着施氮量增加,供试弱筋小麦的氮肥生产效率下降。
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| 关 键 词： | 弱筋小麦 施氮量 籽粒品质 氮素利用 |
| 收稿时间： | 2020-09-01 |
Effects of nitrogen rate on grain quality and nitrogen utilization of weak gluten wheat |
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| WANG Lingling,WU Wenge,LI Rui,HU Jian,YAN Suhui,SHAO Qingqin,XU Feng,ZHANG Congyu,ZHOU Yongjin,LI Wenyang.Effects of nitrogen rate on grain quality and nitrogen utilization of weak gluten wheat[J].Acta Agriculturae Zhejiangensis,2021,33(5):777. |
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| Authors: | WANG Lingling WU Wenge LI Rui HU Jian YAN Suhui SHAO Qingqin XU Feng ZHANG Congyu ZHOU Yongjin LI Wenyang |
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| Institution: | 1. College of Agronomy, Anhui Science and Technology University, Fengyang 233100, China
2. Institute of Rice, Anhui Academy of Agricultural Sciences, Hefei 230031, China |
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| Abstract: | To explore the effect of nitrogen rate on grain quality and nitrogen utilization of weak gluten wheat, wheat cultivar Ningmai13 and Wanximai0638 were adopted as test materials in the present study, and 4 nitrogen rates (N 0, 120, 180, 240 kg·hm-2) were set. It was shown that with the increase of nitrogen rate from 0 to 240 kg·hm-2, the grain yield of wheat first increased and then decreased, and the highest yield was achieved under nitrogen rate of 180 kg·hm-2. When the nitrogen rate was 0-240 kg·hm-2, with the increase of nitrogen rate, the protein content, wet gluten content, hardness, sedimentation value and stability time of grains showed upward trend. Nitrogen accumulated in plant and grains of weak gluten wheat mainly came from soil nitrogen both at flowering stage and maturity stages. With the increase of nitrogen rate from 120 kg·hm-2 to 240 kg·hm-2, the nitrogen accumulated from fertilizer in the grain increased first and then decreased, reaching the peak under nitrogen rate of 180 kg·hm-2. When the nitrogen rate was 120-240 kg·hm-2, the nitrogen use efficiency of weak gluten wheat was 25.68-44.76 kg·kg-1, and the nitrogen fertilizer production efficiency was 25.16-50.82 kg·kg-1. With nitrogen rate increased from 120 kg·hm-2 to 240 kg·hm-2, nitrogen fertilizer production efficiency of weak gluten wheat decreased. |
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| Keywords: | weak gluten wheat nitrogen rate grain quality nitrogen utilization |
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