| 施用不同形态氮肥对土壤供氮能力及冬小麦氮素利用的影响 |
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| 引用本文： | 董莉莉,李友军,吴金芝,黄明.施用不同形态氮肥对土壤供氮能力及冬小麦氮素利用的影响[J].河南农业科学,2008(8). |
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| 作者姓名： | 董莉莉 李友军 吴金芝 黄明 |
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| 作者单位： | 1. 河南农业大学,农学院,河南,郑州450002
2. 河南科技大学,农学院,河南,洛阳,471003 |
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| 基金项目： | 国家粮食丰产科技工程项目 |
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| 摘 要： | 2006-2007年,在大田条件下,研究了施用不同形态氮肥对土壤供氮能力和强筋小麦植株含氮量的影响。结果表明,在施用纯氮量相等的条件下,硝态氮肥处理的土壤全氮和碱解氮含量较高,土壤供氮能力较强。而小麦叶片硝酸还原酶活性和成熟期之前植株各器官的含氮量均以酰胺态氮肥处理最高。酰胺态氮肥处理小麦籽粒蛋白质含量和植株氮素利用效率显著高于硝态氮和铵态氮肥处理。因此,对强筋小麦以施用酰胺态氮肥为宜。
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| 关 键 词： | 冬小麦 氮肥形态 碱解氮 硝酸还原酶 蛋白质含量 |
Effects of Different Nitrogen Forms on Soil Nitrogen Supplying Capacity and Nitrogen Content of Wheat Plant and Grain |
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| DONG Li-li,LI You-jun,WU Jin-zhi,HUANG Ming.Effects of Different Nitrogen Forms on Soil Nitrogen Supplying Capacity and Nitrogen Content of Wheat Plant and Grain[J].Journal of Henan Agricultural Sciences,2008(8). |
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| Authors: | DONG Li-li LI You-jun WU Jin-zhi HUANG Ming |
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| Abstract: | Field experiment was conducted to investigate the effects of different nitrogen forms on soil nitrogen supplying capacity and plant nitrogen content in 2006-2007 growing season.The amount of nitrogen was 240 kg/ha with three nitrogen forms: NO-3-N(NaNO3),NH 4-N(NH4HCO3) and CONH2-N(urea),respectively.Result indicated that the soil total nitrogen and available nitrogen were the highest with NO-3-N treatment.But the activity of nitrate reducase in leaves and the nitrogen content of different organs in plant before mature with NH-2-N treatment were higher than the other treatments.The grain protein content and nitrogen utilization efficiency of NH2-N treatment were the highest in the three treatments.It was concluded that the amide nitrogen was suitable for strong gluten wheat. |
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| Keywords: | Winter wheat Nitrogen forms Available nitrogen Nitrate reducase Protein content |
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