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Intercropping alleviates the inhibitory effect of N fertilization on nodulation and symbiotic N-2 fixation of faba bean

文献类型： 外文期刊

作者： Li, Yu-Ying 1 ; Yu, Chang-Bin 1 ; Cheng, Xu 1 ; Li, Chun-Jie 1 ; Sun, Jian-Hao 3 ; Zhang, Fu-Suo 1 ; Lambers, Hans 4 ; Li 1 ;

作者机构： 1.China Agr Univ, Key Lab Plant Nutr, MOA, Coll Resources & Environm Sci, Beijing 100094, Peoples R China

2.Nanyang Normal Univ, Coll Life Sci & Technol, Nanyang 473061, Henan, Peoples R China

3.Gansu Acad Agr Sci, Inst Soils & Fertilizers, Lanzhou 730070, Peoples R China

4.Univ Western Australia, Sch Plant Biol, Fac Nat & Agr Sci, Perth, WA 6009, Australia

关键词： Interspecific facilitation;N-2 fixation;N-15 natural abundance;Nodulation;Inhibitory effect of N fertilization

期刊名称：PLANT AND SOIL （ 影响因子：4.192； 五年影响因子：4.712 ）

ISSN： 0032-079X

年卷期： 2009 年 323 卷 1-2 期

页码：

收录情况： SCI

摘要： Symbiotic nitrogen fixation is commonly inhibited by N fertilization in intensive farming systems. We hypothesized that intercropping alleviates the inhibitory effect of N fertilization on nodulation and N-2 fixation of legumes. Two years of field experiments (2006-2007) with different N-fertilizer rates (0, 75, 150, 225, 300 kg N ha(-1)) were carried out to test the hypothesis in a faba bean (Vicia faba L.)/maize (Zea mays L.) intercropping system in the north-western part of China. The results show that both the nodule biomass and nitrogen derived from the atmosphere (Ndfa) in intercropped faba bean were increased by 7-58% and 8-33% at the start of flowering, 8-72% and 54-61% at peak flowering, 4-73% and 18-50% at grain filling, and 7-62% and -7-72% at maturity, respectively, compared with sole faba bean. Intercropping with maize significantly alleviated the inhibitory effect of N fertilization on nodulation and N-2 fixation, and improved the productivity of intercropping.

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[1]The role of complementarity and selection effects in P acquisition of intercropping systems. Li, Xiao-Fei,Zhang, Wei-Ping,Wang, Le-Hua,Tian, Xiu-Li,Li, Long,Wang, Cheng-Bao,Yang, Si-Cun,Jiang, Wan-Li,van Ruijven, Jasper. 2018

[2]Wheat/maize or wheat/soybean strip intercropping I. Yield advantage and interspecific interactions on nutrients. Li, L,Sun, JH,Zhang, FS,Li, XL,Yang, SC,Rengel, Z. 2001

[3]Root distribution and interactions between intercropped species. Li, L,Sun, JH,Zhang, FS,Guo, TW,Bao, XG,Smith, FA,Smith, SE.

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