| 蔬菜与肥料中养分摩尔数比与作物生长及氮素利用的关系 |
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| 引用本文： | 袁伟,董元华,王辉.蔬菜与肥料中养分摩尔数比与作物生长及氮素利用的关系[J].土壤学报,2011,48(2):445-451. |
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| 作者姓名： | 袁伟 董元华 王辉 |
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| 作者单位： | 1. 中国科学院土壤环境与污染修复重点实验室(中国科学院南京土壤研究所),南京210008;中国科学院研究生院,北京100049;江苏省农业科学院农业信息研究所,南京210014
2. 中国科学院土壤环境与污染修复重点实验室(中国科学院南京土壤研究所),南京210008;中国科学院研究生院,北京100049 |
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| 基金项目： | 中国科学院知识创新项目 |
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| 摘 要： | 生态化学计量学是研究生物系统能量平衡和多重化学元素(主要是碳、氮、磷、钾)平衡的科学。目前生态化学计量学的研究主要集中在水生生态系统和湿地生态系统,对陆地生态系统的研究相对较少。在我国,有关生态化学计量学的研究
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| 关 键 词： | 生态化学计量学 氮肥利用效率 施肥模式 蔬菜 氨基酸 |
| 收稿时间： | 2009/8/27 0:00:00 |
| 修稿时间： | 2010/2/24 0:00:00 |
Response and nitrogen use efficiency of vegetable under different fertilizations: Analysis by ecological stoichiometry |
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| Yuan Wei.Response and nitrogen use efficiency of vegetable under different fertilizations: Analysis by ecological stoichiometry[J].Acta Pedologica Sinica,2011,48(2):445-451. |
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| Authors: | Yuan Wei |
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| Institution: | Yuan Wei1,2,3 Dong Yuanhua1,2 Wang Hui1,2(1 Key Laboratory of Soil Environment and Pollution Remediation,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China)(2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China)(3 Institute of Agricultural Information,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China) |
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| Abstract: | Under field conditions, we study the correlation between the response and nitrogen use efficiency of vegetable (greengrocery and spinach) and the ecological stoichiometry of carbon, nitrogen, phosphorus and potassium in vegetable under the different fertilizations (CK, organic fertilizers plus inorganic fertilizers 1 containing amino acid, organic fertilizers, inorganic fertilizers, and organic fertilizers plus inorganic fertilizers 2). Our results showed that organic fertilizers plus inorganic fertilizers 1 improved the photosynthetic rate, root growth,yield ,quality, the nitrogen use efficiency of vegetable and C/N of vegetable; reduced the nitrate of vegetable. Therefore, the C/N of organic fertilizers plus inorganic fertilizers 1 improved the C/N of vegetable which can increase the nitrogen use efficiency of vegetable. |
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| Keywords: | Ecological stoichiometry Nitrogen use efficiency Fertilization Vegetable Amino acid |
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