| 氮用量及基追比例对烟叶产量、 品质及氮肥利用效率的影响 |
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| 引用本文： | 张翔,毛家伟,李彰,李国平,王闷灵,江凯,王海涛,段宏群,李永涛.氮用量及基追比例对烟叶产量、 品质及氮肥利用效率的影响[J].植物营养与肥料学报,2012,18(6):1522-1527. |
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| 作者姓名： | 张翔 毛家伟 李彰 李国平 王闷灵 江凯 王海涛 段宏群 李永涛 |
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| 作者单位： | 1.河南省农业科学院植物营养与资源环境研究所,河南郑州 450002; |
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| 基金项目： | 河南省烟草专卖局重点科研项目，洛阳市烟草局科研项目，国家烟草专卖局“浓香型特色优质烟叶开发重大专项”资助 |
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| 摘 要： | 以河南省目前种植面积较大的中烟100为试验材料，研究氮肥不同施用措施对烟叶产量、 含氮化合物及氮肥利用效率的影响。结果表明，与不施氮处理相比，施氮显著提高了烟叶产量、 产值和含氮化合物含量，烟叶产量和产值分别增加10.0%~56.7%、 11.6%~43.1%。在相同施氮量条件下，随着追施氮比例增加，烟叶产量和含氮化合物、 氮肥利用效率增加，烟叶产值在施氮37.5 kg/hm2水平随着氮肥追施比例增加而增加，而在施氮60 kg/hm2和82.5 kg/hm2水平均以氮基施75％、 追施25%处理最高。在氮基追比例相同条件下，烟叶产量和含氮化合物及氮肥贡献率随着施氮量增加而增加，氮肥偏生产力随着施氮量增加而降低，氮肥吸收利用率和烟叶产值均以N 60 kg/hm2处理最高。从烟叶产量和含氮化合物适宜， 提高烟叶产值和氮肥利用率方面综合分析，在本试验中，以施氮60.0 kg/hm2，氮50%~75%基施、 25%50%追施处理表现最优。
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| 关 键 词： | 烤烟 氮肥 产量 含氮化合物 氮肥利用率 |
| 收稿时间： | 2012-01-10 |
Effects of nitrogen fertilizer rates and ratios of base and topdressing fertilizer on yield, quality of tobacco leaves and N-use efficiency |
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| ZHANG Xiang MAO Jia-wei LI Zhang LI Guo-ping WANG Men-ling JIANG Kai WANG Hai-tao DUAN Hong-qun LI Yong-tao.Effects of nitrogen fertilizer rates and ratios of base and topdressing fertilizer on yield, quality of tobacco leaves and N-use efficiency[J].Plant Nutrition and Fertilizer Science,2012,18(6):1522-1527. |
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| Authors: | ZHANG Xiang MAO Jia-wei LI Zhang LI Guo-ping WANG Men-ling JIANG Kai WANG Hai-tao DUAN Hong-qun LI Yong-tao |
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| Affiliation: | 1.Institute of Plant Nutrition,Resource and Environment,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China; |
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| Abstract: | The most popular tobacco cultivar, Zhongyan 100, in Henan province was used to study the effects of different application measures of nitrogen (N) on yield of flue cured tobacco, N use efficiency and nitrogenous compounds of tobacco leaves. The results show that compared with the control treatment (without nitrogen), the yields of tobacco leaves, nitrogenous compounds and N use efficiencies are significantly increased under the N application treatments, and the yields and the production values are increased by 10.0%-56.7% and 11.6%-43.1%, respectively. Under the same amount of nitrogen application, with the increase of topdressed nitrogen rate, the yields, nitrogenous compounds and N use efficiency of tobacco are increased. At the N application level of 37.5 kg/ha, the production value is increased with the ratio of topdressed N to basal N fertilizer increasing. The treatment of 75% basal N and 25% topdressed N has the highest production values under both 60 kg/ha N application level and 82.5 kg/ha N application level. At the same ratio of basal N to topdressed N fertilizer, the partial factor productivity of the applied N is decreased with the nitrogen application increasing, and the N use efficiency and the production value are the highest under the N 60 kg/ha level. Based on the comprehensive analysis of the yields of tobacco leaves, appropriate nitrogenous compounds, increases of the production value and the N use efficiency, the treatment with the best effect is the amount of nitrogen application at 60.0 kg/ha and the proportion of basal N application at 50%-75%. |
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| Keywords: | flue-cured tobacco nitrogen fertilizer yield nitrogenous compounds N use efficiency |
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