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Nitrogen uptake and transfer in broad bean and garlic strip intercropping systems

文献类型： 外文期刊

作者： Tang Qiu-xiang 1 ; Haile Tewolde 3 ; Liu Hong-bin 2 ; Ren Tian-zhi 4 ; Jiang Ping-an 1 ; Zhai Li-mei 2 ; Lei Bao-kun 5 ;

作者机构： 1.Xinjiang Agr Univ, Coll Agron, Urumqi 830052, Peoples R China

2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Nonpoint Source Pollut Control, Minist Agr, Beijing 100081, Peoples R China

3.USDA ARS, Crop Sci Res Lab, Mississippi State, MS 39762 USA

4.Minist Agr, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China

5.Yunnan Acad Agr Sci, Inst Agr Environm Resources Res, Kunming 650205, Yunnan, Peoples R China

6.Xinjiang Acad Agr Sci, Inst Ind Crops, Urumqi 830091, Peoples R China

7.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China

关键词： legumes;sole crop;N-15 abundance;nitrogen isotope;rhizoshpere

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2018 年 17 卷 1 期

页码：

收录情况： SCI

摘要： Utilization and transfer of nitrogen (N) in a strip intercropping system of garlic (Allium sativum L.) and broad bean (Vicia faba L.) have been investigated rarely. The objectives of this study were to quantify N uptake and utilization by intercropped broad bean and garlic and determine the magnitude of N transfer from broad bean to garlic. Field and pot trials were carried out in the Erhai Lake Basin in China using N-15 tracer applied to the soil or injected into broad bean plants. Strip intercropping of garlic and broad bean increased N absorption (47.2%) compared with sole crop broad bean (31.9%) or sole crop garlic (40.7%) and reduced soil residual N. Nearly 15% of N-15 injected into petioles of broad bean intercropped with garlic was recovered in garlic at harvest, suggesting that N could be transferred from broad bean to strip intercropped garlic. The findings provide a basis for evaluating legumes' role in optimizing N fertilization when intercropped with non-legumes.

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