Biologia Plantarum

, Volume 18, Issue 5, pp 339–343 | Cite as

Effect of ammonium concentration on growth and nitrogen accumulation by soybean grown in nutrient solution

  • R. A. Joseph
  • Tang Van Hai
  • J. Lambert


Soybean (Glycine max (L.) MERR. CV. ‘Amsoy’) plants were grown for 40 days in nutrient solution at various concentrations of ammonium. Maximum yield of dry matter was obtained at a concentration of 715 μM. Further increase in the concentration of ammonium resulted in a reduction in growth due to ammonium toxicity which affected both root and shoot development. The pattern of nitrogen accumulation in tops was consistent with the multiphasic uptake of ammonium and can be represented by 2 phases in the range 1.78 X 10-5-3.57 x X 10-3 M of ammonium.


Nutrient Solution Ammonium Concentration Soybean Plant Soybean Root Nitrogen Accumulation 
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Copyright information

© Institute of Experimental Botany 1976

Authors and Affiliations

  • R. A. Joseph
    • 1
  • Tang Van Hai
    • 1
  • J. Lambert
    • 1
  1. 1.Faculty of Agricultural SciencesUniversity of LouvainLouvain

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