优化施肥对稻-麦轮作系统氮肥利用与氮素平衡的影响
采用田间试验,研究成都平原水稻-小麦轮作下常规施肥和优化施肥对系统生产力、氮素利用及氮素平衡的影响。结果表明：优化施肥显著提高小麦、水稻产量和系统生产力,分别比常规施肥提高15.04%、20.35%和18.37%;优化施肥促进作物籽粒对氮素吸收利用,提高肥料利用率,优化施肥处理小麦氮肥利用率为28.19%,水稻为48.89%,分别比常规施肥提高11.29%和9.06%;水稻小麦轮作下,常规施肥和优化施肥处理土壤氮素盈余量分别为82.89和95.34 kg/hm2,无肥处理亏缺量为-89.04kg/hm2;氮素损失是土壤-植物体系中氮肥去向的主要形式,优化施肥显著降低小麦季氮素损失。...
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| Published in | 西南农业学报 Vol. 25; no. 5; pp. 1734 - 1737 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
四川省农业科学院土壤肥料研究所,四川成都,610066%四川省彭山县农业局,四川彭山,620860
2012
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| Subjects | |
| Online Access | Get full text |
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| Abstract | 采用田间试验,研究成都平原水稻-小麦轮作下常规施肥和优化施肥对系统生产力、氮素利用及氮素平衡的影响。结果表明：优化施肥显著提高小麦、水稻产量和系统生产力,分别比常规施肥提高15.04%、20.35%和18.37%;优化施肥促进作物籽粒对氮素吸收利用,提高肥料利用率,优化施肥处理小麦氮肥利用率为28.19%,水稻为48.89%,分别比常规施肥提高11.29%和9.06%;水稻小麦轮作下,常规施肥和优化施肥处理土壤氮素盈余量分别为82.89和95.34 kg/hm2,无肥处理亏缺量为-89.04kg/hm2;氮素损失是土壤-植物体系中氮肥去向的主要形式,优化施肥显著降低小麦季氮素损失。 |
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| AbstractList | S158; 采用田间试验,研究成都平原水稻-小麦轮作下常规施肥和优化施肥对系统生产力、氮素利用及氮素平衡的影响.结果表明:优化施肥显著提高小麦、水稻产量和系统生产力,分别比常规施肥提高15.04％、20.35％和18.37％；优化施肥促进作物籽粒对氮素吸收利用,提高肥料利用率,优化施肥处理小麦氮肥利用率为28.19％,水稻为48.89％,分别比常规施肥提高11.29％和9.06％；水稻小麦轮作下,常规施肥和优化施肥处理土壤氮素盈余量分别为82.89和95.34 kg/hm2,无肥处理亏缺量为-89.04 kg/hm2；氮素损失是土壤-植物体系中氮肥去向的主要形式,优化施肥显著降低小麦季氮素损失. 采用田间试验,研究成都平原水稻-小麦轮作下常规施肥和优化施肥对系统生产力、氮素利用及氮素平衡的影响。结果表明：优化施肥显著提高小麦、水稻产量和系统生产力,分别比常规施肥提高15.04%、20.35%和18.37%;优化施肥促进作物籽粒对氮素吸收利用,提高肥料利用率,优化施肥处理小麦氮肥利用率为28.19%,水稻为48.89%,分别比常规施肥提高11.29%和9.06%;水稻小麦轮作下,常规施肥和优化施肥处理土壤氮素盈余量分别为82.89和95.34 kg/hm2,无肥处理亏缺量为-89.04kg/hm2;氮素损失是土壤-植物体系中氮肥去向的主要形式,优化施肥显著降低小麦季氮素损失。 |
| Author | 王昌桃 李国会 黄晶晶 陈尚洪 刘定辉 |
| AuthorAffiliation | 四川省农业科学院土壤肥料研究所,四川成都610066 四川省彭山县农业局,四川彭山620860 |
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| Author_FL | HUANG Jing-jing WANG Chang-tao LIU Ding-hui CHEN Shang-hong LI Guo-hui |
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| ClassificationCodes | S158 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | Effect of Different Fertilization Methods on Nitrogen Utilization and Balance under Rice-Wheat Rotation System |
| DocumentTitle_FL | Effect of Different Fertilization Methods on Nitrogen Utilization and Balance under Rice-Wheat Rotation System |
| EndPage | 1737 |
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| Keywords | 氮肥利用率 氮素循环 稻-麦轮作 优化施肥 |
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| Notes | WANG Chang-tao,LI Guo-hui,HUANG Jing-jing,CHEN Shang-hong,LIU Ding-hui（1.Soil and Fertilizer Institute,Sichuan Academy of Agricultural Sciences,Sichuan Chengdu 610066,China;2.Agricultural Bureau of Pengshan County,Sichuan Pengshan 620860,China） In this paper,the effects of different three treatments of CK,traditional fertilization（TF） and optimum fertilization（OF） on the system productivity,nitrogen utilization and balance under rice-wheat rotation system in Chengdu plain of Sichuan were studied in field trials.The results showed that optimal fertilization could improve yield of wheat and rice and system productivity significantly which were 15.04 %,20.35 % and 18.37 % more than that of TF,respectively.Optimal fertilization could promote the absorption and utilization of nitrogen for crop grain and the increase efficiency of fertilization use.Under the optimal fertilization condition,the nitrogen use efficiency of wheat was 28.19 %,while that of rice was 48.89 %,which was 11.29 % and 9.06 % more than that of T |
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| PublicationTitle | 西南农业学报 |
| PublicationTitleAlternate | Southwest China Journal of Agricultural Sciences |
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| PublicationYear | 2012 |
| Publisher | 四川省农业科学院土壤肥料研究所,四川成都,610066%四川省彭山县农业局,四川彭山,620860 |
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| SubjectTerms | 优化施肥 氮素循环 氮肥利用率 稻-麦轮作 |
| Title | 优化施肥对稻-麦轮作系统氮肥利用与氮素平衡的影响 |
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