| 氮肥调控对冬小麦主要性状、氮素利用及土壤硝态氮时空变化的影响 |
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| 引用本文： | 张英鹏,刘兆辉,仲子文,孙明,刘苹,马征,井永苹,李彦.氮肥调控对冬小麦主要性状、氮素利用及土壤硝态氮时空变化的影响[J].江西农业学报,2013(12):78-81,85. |
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| 作者姓名： | 张英鹏 刘兆辉 仲子文 孙明 刘苹 马征 井永苹 李彦 |
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| 作者单位： | 山东省农业科学院农业资源与环境研究所、农业部黄淮海平原农业环境重点实验室、山东省农业面源污染防控重点实验室,山东济南250100 |
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| 基金项目： | 小麦现代农业产业技术体系项目“平衡施肥”（cARS-03）;山东省农、世重大应用技术创新项目“小麦一玉米々用环保型缓释肥料的研制与应用”. |
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| 摘 要： | 在山东招远棕壤区的小麦-玉米轮作区,通过田间试验,研究了不同氮肥调控处理对冬小麦主要性状、氮肥利用率以及土壤硝态氮时空变化的影响。结果表明:施用控释肥B的处理(CRF B处理)与习惯施肥处理相比,尽管降低了37%的氮肥用量,仍能够获得小麦最高产量,且氮肥偏生产力和农学效率最高,同时氮肥利用率和氮肥生理利用率较高,硝态氮在不同土层的积累较少,没有淋溶风险。因此CRF B是最佳的氮肥调控处理。
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| 关 键 词： | 小麦 氮肥 调控 性状 产量 氮素利用率 土壤硝态氮 |
Effects of Nitrogen Fertilizer Regulation on Main Characters and Nitrogen Use of Winter Wheat,and Spatial - temporal Changes of Nitrate Nitrogen in Soil |
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| Institution: | ZHANG ing- peng, LIU Zhao -hui, ZHONG Zi -wen, SUN Ming, LIU Ping, MA Zheng, JING Yong -ping, L1 Yan＊ ( Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences; Key Laboratory of Agro - environment in Huang - Huai - Hai Plain, Ministry of Agriculture; Shandong Provincial Key Laboratory of Agricultural Non - point Source Pollution Control, Ji＇ nan 250100, China) |
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| Abstract: | In the wheat - corn rotation brown soil area of Zhaoyuan, Shandong province, the author studied the effects of differ- ent nitrogen t~ertilizer t~gulation treatments on the main characters and nitrogen use efficiency of winter wheat, as well as the spatial - temporal changes of nitrate nitrogen in the soil through field tests. The results showed that ： although the treatment of applying controlled- release t~rtilizer B （treatment CRF~） reduced the application rate of nitrogen fertilizer by 37% in comparisotl with the treatment of habitually applying fertilizer, it could obtain the highest wheat yield, the highest nitrogen fertilizer partial productivity and agronomic efficiency, and higher nitrogen use efficiency and nitrogen physiological utilization rate; at the same time, the treat- ment CRF, made the accumulation of nitrate nitrogen in various soil layers less without leaching risk. So CRF. was the optimal nitro- gen fertilizer regulation treatment. |
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| Keywords: | Wheat Nitrogen fertilizer Regulation Character Yield Nitrogen use efficiency Soil nitrate nitrogen |
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