Plant and Soil

, Volume 79, Issue 2, pp 241–247 | Cite as

Rhizobium inoculant for soybean [Glycine max (L.) Merrill] in Mekong Delta

II. Response of soybean to chemical nitrogen fertilizer and Rhizobium inoculation
  • Tran Phuoc Duong
  • Cao Ngoc Diep
  • Nguyen Tri Khiem
  • Nguyen Huu Hiep
  • Nguyen Van Toi
  • Nguyen Van Lich
  • Thi Kieu Le Nhan
Article

Summary

Soybean cultivar MTD10 cultivated on a moderate acid paddy soil of the Mekong Delta responded well to a multistrain inoculation and to chemical nitrogen fertilizer. However, the efficiency of chemical nitrogen uptake by the uninoculated plants decreased with increasing nitrogen application rate. Inoculation improved all examined agronomic characteristics of plants. Inoculated plants produced grain yield 10 times greater than the uninoculated controls and 2.5 times greater than the uninoculated plants receiving 80 kg/ha of chemical nitrogen. Inoculation was superior to chemical nitrogen fertilization in all parameters of importance to market-oriented farmers.

Key words

Acid soils Nitrogen fertilizer Rhizobium Soybean 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Boonkerd W, Rungrattanakasin W, Wadeesiriak P and Vasuvat, Y 1979 Effect of nitrogen fertilizer application on growth, nodulation, nitrogen fixation and yield of soybean, pp 182–193In Proceedings of Soil Microbiology and Plant Nutrition (somiplan) symposium held in Kuala Lumpur. Eds W J Brought, C K John, J C Rajarao and Bedalim. Malaysia, August 1976.Google Scholar
  2. 2.
    Duong T P, Diep C N, Khiem N T, Hiep N H, Toi N V, Lich N V and Nhan L T K 1984 Rhizobium inoculant for soybean (Glycine max (L.) Merrill) in Mekong Delta. I. Response of soybean to Rhizobium inoculation. Plant and Soil 79, 235–240.Google Scholar
  3. 3.
    Tin C H 1980Rhizobium japonicum inoculation onGlycerine max in Viet Nam. Soybean Genetics Newsletter 7, 97–100.Google Scholar

Copyright information

© Martinus Nijhoff/Dr W. Junk Publishers 1984

Authors and Affiliations

  • Tran Phuoc Duong
    • 1
  • Cao Ngoc Diep
    • 1
  • Nguyen Tri Khiem
    • 1
  • Nguyen Huu Hiep
    • 1
  • Nguyen Van Toi
    • 1
  • Nguyen Van Lich
    • 1
  • Thi Kieu Le Nhan
    • 1
  1. 1.Tropical Biological Nitrogen Research Center (TBNRC) University of Can ThoCan Tho, Hau GiangVietnam

Personalised recommendations