Research Article Open Access

Effect of Phosphorus Application and Arbuscular Mycorrhizal Fungi Inoculation on the Growth of American Jointvetch and Greenleaf Desmodium

Manabu Tobisa1 and Yoshinori Uchida1
  • 1 Faculty of Agriculture, University of Miyazaki, Miyazak, Japan

Abstract

This study examined the growth and Arbuscular Mycorrhizal (AM) colonization of two tropical forage legumes, namely, American jointvetch (Aj) and Greenleaf desmodium (Gd), at two phosphate application rates (0 or 10 g P m-2 yr-1; -P or +P), with or without AM (+AM or -AM) in a pot experiment. AM inoculation and P application promoted the growth of both species. AM inoculation in the early growth stages promoted colonization in both species, but P application did not. Nitrogen and phosphorus concentrations were affected by neither AM inoculation nor P application. Nitrogen uptake in both Aj and Gd, however, was affected by both AM inoculation and P application. Phosphorus uptake was affected by AM inoculation in Aj and by P application in Gd. The results suggest that both P application and AM promoted legume growth and AM colonization was not suppressed by P application. Nevertheless, plant responses to the treatments varied with species and growth stage. 

American Journal of Agricultural and Biological Sciences
Volume 12 No. 2, 2017, 85-94

DOI: https://doi.org/10.3844/ajabssp.2017.85.94

Submitted On: 5 January 2017 Published On: 9 June 2017

How to Cite: Tobisa, M. & Uchida, Y. (2017). Effect of Phosphorus Application and Arbuscular Mycorrhizal Fungi Inoculation on the Growth of American Jointvetch and Greenleaf Desmodium. American Journal of Agricultural and Biological Sciences, 12(2), 85-94. https://doi.org/10.3844/ajabssp.2017.85.94

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Keywords

  • Arbuscular Mycorrhizal Fungi
  • Inoculation
  • Phosphorus
  • Tropical Legume