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

TANG Qiu-xiang; Haile TewoIde; LIU Hong-bin; REN Tian-zhi; JIANG Ping-an; ZHAI Li-mei; LEI Bao-kun; LIN Tao; LIU En-ke

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

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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 15N 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 15N 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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《农业科学学报（英文版）》 |2018年第1期|220-230|共11页
作者
TANG Qiu-xiang; Haile TewoIde; LIU Hong-bin; REN Tian-zhi; JIANG Ping-an; ZHAI Li-mei; LEI Bao-kun; LIN Tao; LIU En-ke;
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College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, P.R.China;

Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture, Beijing 100081, P.R.China;

Crop Science Research Laboratory, USDA-ARS, MS 39762, USA;

Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture, Beijing 100081, P.R.China;

Agro-environmental Protection Institute, Ministry of Agriculture, Tianjing 300191, P.R.China;

College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, P.R.China;

Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture, Beijing 100081, P.R.China;

Institute of Agriculture Environmental Resources Research, Yunnan Academy of Agricultural Sciences, Kunming 650205,P.R.China;

Institute of Industrial Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, P.R.China;

Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081,P.R.China;

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

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