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Interactive effect of salinity and two nitrogen fertilizers on growth and composition of sorghum

Author

Listed:
  • E. Esmaili

    (Soil Science Department, Tarbiat Modares University, Tehran, Iran)

  • S.A. Kapourchal

    (Department of Environmental Sciences, Allameh Mohaddes Noori Higher Education Centre, Noor, Iran)

  • M.J. Malakouti

    (Soil Science Department, Tarbiat Modares University, Tehran, Iran)

  • M. Homaee

    (Soil Science Department, Tarbiat Modares University, Tehran, Iran)

Abstract

The objective of this study was to investigate the interactive effects of salinity and different sources of applied N on growth, yield and nutrient composition of sorghum. The salinity treatments C0, C1, C2, C3 and C4 corresponded to 0.6, 6, 8, 10 and 12 dS/m, respectively. Eight fertilization treatments combined urea and ammonium nitrate sources. The height, fresh weight, dry weight, leaf area, N, K, Ca, Mg, Na and Cl contents of treated plants were measured after harvesting. Results indicate that both emergence and growth were significantly decreased by increasing salinity. The plant response to N fertilizers appeared to be different at each salinity level. The maximum production of C0 treatment was obtained for N-3, while at C1 and C2 treatments the maximum yield was obtained for N-2 and N-1 treatments, respectively. In the saline treatments, there was no significant difference between the two applied N-sources. The N, Ca, Mg, Na and Cl concentrations in plant tissues increased with increasing salinity; K concentration and the uptake of N, K, Ca and Mg were however decreased.

Suggested Citation

  • E. Esmaili & S.A. Kapourchal & M.J. Malakouti & M. Homaee, 2008. "Interactive effect of salinity and two nitrogen fertilizers on growth and composition of sorghum," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 54(12), pages 537-546.
    • Handle: RePEc:caa:jnlpse:v:54:y:2008:i:12:id:425-pse
    DOI: 10.17221/425-PSE
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    References listed on IDEAS

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    1. P. Svoboda & J. Haberle, 2006. "The effect of nitrogen fertilization on root distribution of winter wheat," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(7), pages 308-313.
    2. H. Özer & T. Polat & E. Öztürk, 2004. "Response of irrigated sunflower (Helianthus annuus L.) hybrids to nitrogen fertilization: growth, yield and yield components," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 50(5), pages 205-211.
    3. A. Orak & E. Ateş, 2005. "Resistance to salinity stress and available water levels at the seedling stage of the common vetch (Vicia sativa L.)," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 51(2), pages 51-56.
    4. Supanjani & K.D. Lee, 2006. "Hot pepper response to interactive effects of salinity and boron," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(5), pages 227-233.
    5. F. Burger & A. Čelková, 2003. "Salinity and sodicity hazard in water flow processes in the soil," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(7), pages 314-320.
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    Cited by:

    1. M. Dogan & R. Tipirdamaz & Y. Demir, 2010. "Salt resistance of tomato species grown in sand culture," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(11), pages 499-507.

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    Keywords

    nitrogen; salinity; sorghum;
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