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

II. Response of soybean to chemical nitrogen fertilizer and Rhizobium inoculation

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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.

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References

  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.

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Authors and Affiliations

  1. Tropical Biological Nitrogen Research Center (TBNRC) University of Can Tho, Can Tho, Hau Giang, Vietnam

    Tran Phuoc Duong (Principal Investigator and Director TBNRC), Cao Ngoc Diep (Research Associates TBNRC), Nguyen Tri Khiem (Statistician, Faculty of Agricultural Economics, University of Can Tho), Nguyen Huu Hiep (Statistician, Faculty of Agricultural Economics, University of Can Tho), Nguyen Van Toi (Undergraduate students), Nguyen Van Lich (Undergraduate students) & Thi Kieu Le Nhan (Research Associates TBNRC)

Authors
  1. Tran Phuoc Duong
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  2. Cao Ngoc Diep
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  3. Nguyen Tri Khiem
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  4. Nguyen Huu Hiep
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  5. Nguyen Van Toi
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  6. Nguyen Van Lich
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  7. Thi Kieu Le Nhan
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Duong, T.P., Diep, C.N., Khiem, N.T. et al. Rhizobium inoculant for soybean [Glycine max (L.) Merrill] in Mekong Delta. Plant Soil 79, 241–247 (1984). https://doi.org/10.1007/BF02182346

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  • DOI: https://doi.org/10.1007/BF02182346

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