Abstract
Plant growth in saline soils may be increased by fertilisation, but little is known about the effect of different forms of N on wheat growth in soils with different salinity levels. The aim of this study was to investigate the response of wheat (Triticum aestivum L., cv Krichauff) to (NH4)2SO4 or KNO3 or NH4NO3 at 0 (N0), 50 (N50), 100 (N100) and 200 (N200) mg N kg−1 soil in a saline sandy loam. Salinity was induced using Na+ and Ca2+ salts to achieve three ECe levels, 2.8, 6.6 and 11.8 dS m−1 denoted S1, S2 and S3, respectively, while maintaining a low SAR (>1). Dry weights of shoot and root were reduced by salinity in all N treatments. Addition of N significantly increased shoot and root dry weights with significant differences between N forms. Under non-saline conditions (S1), addition of NO3 − N at rates higher than N50 had a negative effect, while N100 as NH4 − N or NH4NO3 − N increased shoot and root dry weights. At N100, shoot concentrations of N and K were higher and P, Ca, Fe, Mn, Cu and Zn were lower with NO3 − N than with NH4 − N nutrition. The concentration of all nutrients however fell in ranges did not appear to be directly associated with poor plant growth with NO3 − N. At all N additions, calculations indicated that soil salinity was highest with N addition as NO3 − N and decreased in the following order: NO3−N > NH4−N > NH4NO3−N. Addition of greater than N50 as NO3 − N, compared to NH4 − N or NH4 − NO3, increased soil salinity and reduced micronutrient uptake both of which likely limited plant growth. It can be concluded that in saline soils addition of 100 mg N kg−1 as NH4 − N or NH4NO3 − N is beneficial for wheat growth, whereas NO3 − N can cause growth depression.
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References
Ali A, Tucker TC, Thompson TL, Salim M (2001) Effects of salinity and mixed ammonium and nitrate on the growth and nitrogen utilization of barley. J Agron Crop Sci 186:223–228
Al-Mutawa MM, El-Katony TM (2001) Salt tolerance of two wheat genotypes in response to the form of nitrogen. Agron 21:259–266
Bradstreet RB (1965) The Kjeldahl method for organic nitrogen. Academic, New York
Britto DT, Kronzucker HJ (2002) NH +4 toxicity in higher plants: a critical review. J Plant Physiol 159:567–584
Chittleborough D, Maschmedt DJ, Wright MJ (1976) Soils of Monarto town site. Soil Survey No. 16. Department of Agriculture, South Australia
Cox JW, Reisennauer HM (1973) Growth and ion uptake by wheat supplied with nitrogen as nitrate, ammonium, or both. Plant Soil 38:363–380
Frechilla S, Lasa B, Ibarretxe L, Lamsfus C, Aparicio-Tejo P (2001) Pea responses to saline stress is affected by the source of nitrogen nutrition (ammonium or nitrate). Plant Growth Regul 35:171–179
Gahoonia TS, Claassen N, Jungk A (1992) Mobilization of phosphate in different soil by ryegrass supplied with ammonium or nitrate. Plant Soil 140:241–248
Gerendas J, Zhu Z, Bendixen R, Ratcliffe RG, Sattelmacher B (1997) Physiological and biochemical processes related to ammonium toxicity in higher plants. Z Pflanzenernaehrung Bod 160:239–251
Hofmann C, Ladewing E, Claassen N, Junk A (1994) Phosphorus uptake of maize as affected by ammonium and nitrate nitrogen: measurements and model calculations. Z Pflanzerernahrung Bod 157:225–232
Inal A, Tarakcioglu C (2001) Effects of nitrogen forms on growth, nitrate accumulation, membrane permeability, and nitrogen use efficiency of hydroponically grown bunch onion under boron deficiency and toxicity. J Plant Nutr 24:1521–1534
Irshad M, Honna T, Eneji AE, Yamamoto S (2002) Wheat response to nitrogen source under saline conditions. J Plant Nutr 25:2603–2612
Isbell RF (1996) The Australian soil classification. CSIRO Publications, Melbourne
Jackson ML (1958) Soil Chemical Analysis. Prentic-Hall Inc., Englewood Cliffs, New Jersy, USA
Kempers AJZ (1986) Communication in soil science. Soil Sci Plant Anal 17:715–723
Klute A (1986) Methods of soil analyses, Part 1, Physical and Mineralogical Methods, 2nd edn. American society of agronomy-soil science society of america, Madison, pp 383–409
Kouno K, Tuchiya Y, Ando T (1995) Measurement of soil microbial biomass phosphorus by an anion exchange membrane method. Soil Biol Biochem 27:1353–1357
Lavoie N, Vezina LP, Margolis HA (1992) Absorption and assimilation of nitrate and ammonium ions by jack pine seedlings. Tree Physiol 11:171–183
Lewis OAM, Cramer M, Van Der Leij T (1990) Influence of nitrogen source on carbon distribution in plants exhibiting the C3 and C4 photosynthetic pathways. In: Ullrich WR, Rigano C, Fuggi A, Aparicio PJ (eds) Inorganic Nitrogen Metabolism in Plants and Microorganisms, Uptake and Metabolism. Springer-Verlag, Berline
Lewis OAM, Leidi EO, Lips SH (1989) Effect of nitrogen source on growth response to salinity stress in maize and wheat. New Phytol 111:155–160
Mahmood T, Kaiser WM (2003) Growth and solute of the salt-tolerant kallar grass [Leptochloa fusca (L.) Kunth] as affected by nitrogen source. Plant Soil 252:359–366
Martinez V, Cerda A (1989) Influence of nitrogen source on rate of Cl, N, Na and K uptake by cucumber seedlings grown in saline conditions. J Plant Nutr 12:971–983
Murphy J, Riley JP (1962) A modified single solution for determination of phosphate in natural waters. Anal Chem Acta 27:31–36
Poonnachit U, Darnell R (2004) Effect of ammonium and nitrate on ferric chelate reductase and nitrate reductase in Vaccinium species. Annal Bot 93:399–405
Reuter DJ, Robinson JB (1997) Plant analysis, an interpretation manual, 2nd edn. CSIRO, Australia, pp 411–430
Slavich PG, Petterson GH (1993) Estimating the electrical conductivity of saturated paste extracts from 1:5 soil, water suspensions and texture. Aust J Soil Res 31:73–81
Traore A, Maranville JW (1999) Effect of nitrate/ammonium ratios on biomass production, N accumulation and use efficiency in Sorghums of different origins. J Plant Nutr 22:813–825
USDA (1999) Soil Taxonomy-a basic system of soil classification for making and interpreting soil surveys, 2nd edn. Soil Survey Staff, USDA-NRCS, Agriculture Handbook No 436
Van der Eerden L (1982) Toxicity of ammonia to plants. Agric Environ 7:223–235
Villa-Castorena M, Ulery AL, Catalan-Valencia EA, Remmenga MD (2003) Salinity and nitrogen rate effects on the growth and yield of chile pepper plants. Soil Sci Soc Am J 67:1781–1789
Ward MR, Aslam M, Huffaker RC (1986) Enhancement of nitrate uptake and growth of barley seedlings by calcium under saline conditions. Plant Physiol 80:520–524
Warren CR, Adams MA (2002) Possible causes of slow growth of nitrate-supplied Pinus pinaster. Can J Forest Res 32:569–580
Westernman RL (1990) Soil testing and plant analysis. Soil Science Society of America, Madison, pp 217–264
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Elgharably, A., Marschner, P. & Rengasamy, P. Wheat growth in a saline sandy loam soil as affected by N form and application rate. Plant Soil 328, 303–312 (2010). https://doi.org/10.1007/s11104-009-0110-2
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DOI: https://doi.org/10.1007/s11104-009-0110-2