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Acta Prataculturae Sinica ›› 2012, Vol. 21 ›› Issue (1): 43-49.

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Effect of Rhizobium inoculation on crop growth and nitrogen nutrition of a pea/maize intercropping system

GUO Li-zhuo, ZHANG Hu-tian, HE Ya-hui, CHAI Qiang, HUANG Gao-bao   

  1. Faculty of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
  • Online:2012-02-20 Published:2012-02-20

Abstract: A Rhizobium inoculation experiment was conducted in a pea/maize intercropping system to investigate the changes of nodulation, nitrogen (N) fixation, N absorption, and crop growth. Nitrogenase activity of Rhizobium in pea nodules was increased significantly by intercropping and inoculation with ACCC16101 (R1) and XC3.1 (R2). Nodule weights of intercropped pea increased by 19.0%-120.4% after inoculation with these two Rhizobium strains. ACCC16101 had little effect on N absorption and dry matter accumulation of either pea or maize. In an intercropping system inoculated with XC3.1, N and dry matter accumulation of these two crops were considerably improved and seed yields of pea and maize increased by 16.9% and 19.1%, respectively. XC3.1 is suitable for inoculation in a pea/maize system.

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