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

文献类型： 外文期刊

第一作者： Tang Qiu-xiang

作者： Tang Qiu-xiang;Jiang Ping-an;Tang Qiu-xiang;Liu Hong-bin;Zhai Li-mei;Haile Tewolde;Ren Tian-zhi;Lei Bao-kun;Lin Tao;Liu En-ke

作者机构：

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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