Summary
Acid-hydrolysable organic nitrogen fractions were determined before and after two crops of Sudan-sorghum hybrid grass grown in a growth chamber on twenty Quebec soils. The relationship between the organic nitrogen fractions and yield response to N fertilizer and N uptake was examined by correlation methods and compared with corresponding relations obtained using incubation and boiling water extraction methods as indices of soil N availability.
Mean contributions to total N lost during growth of the two crops were: hydrolysable NH +4 -N−19%, amino acid N−16% and hexosamine N−2%. The amino acid N, hydrolysable NH +4 -N and total hydrolysable N were significantly correlated with percent yield, log percent yield decrement and N uptake. Better correlations were obtained with the incubation and boiling water extraction methods than with the organic-N fractions.
Similar content being viewed by others
Literature cited
Allison, F. E., Organic carbon.In C. A. Black (ed.) Methods of Soil Analysis. Agronomy9, 1367–1378 (1965).
Bremner, J. M., Nitrogen availability indexes.In C. A. Black (ed.) Methods of Soil Analysis. Agronomy9, 1324–1345 (1965).
Bremner, J. M., Total nitrogen.In C. A. Black (ed.) Methods of Soil Analysis. Agronomy9, 1149–1178 (1965).
Bremner, J. M., Inorganic nitrogen.In C. A. Black (ed.) Methods of Soil Analysis. Agronomy9, 1179–1237 (1965).
Bremner, J. M., Organic forms of nitrogen.In C. A. Black (ed.) Methods of Soil Analysis. Agronomy9, 1238–1254 (1965).
Keeney, D. R. and Bremner, J. M., Effects of cultivation on the nitrogen distribution of soils. Soil Sci. Soc. Am. Proc.28, 653–656 (1964).
Keeney, D. R. and Bremner, J. M., Characterisation of mineralisable nitrogen in soils. Soil Sci. Soc. Am. Proc.30, 714–719 (1966).
Keeney, D. R. and Bremner, J. M., A chemical Index of Soil Nitrogen Availability. Nature211, 892–893 (1966).
Keeney, D. R. and Bremner, J. M., Determination and isotope-ratio analysis of different forms of nitrogen in soils. VI. Mineralisable nitrogen. Soil Sci. Soc. Am. Proc.31, 34–39 (1966).
Lindner, R. C. and Harley, C. P., A rapid method for the determination of nitrogen in plant material. Science96, 565–566 (1942).
O'Brien, J. E. and Fiore, J., Ammonia determination by automatic analysis. Wastes Engineering33, 352–353 (1962).
Porter, L. K., Stewart, B. A. and Haas, H. J., Effects of long time cropping on hydrolysable organic nitrogen fractions in some Great Plains soils. Soil Sci. Soc. Am. Proc.28, 368–370 (1964).
Steel, R. G. D. and Torrie, J. H., Principles and procedures of statistics. McGraw-Hill Book Co., Inc., New York. 481 p. (1960).
Waring, S. A. and Bremner, J. M., Ammonium production in soil under water-logged conditions as an index of nitrogen availability. Nature201, 951–952 (1964).
Author information
Authors and Affiliations
Additional information
Contribution from Department of Soil Science, Macdonald College of McGill University.
Rights and permissions
About this article
Cite this article
Kadirgamathaiyah, S., Mackenzie, A.F. A study of soil nitrogen organic fractions and correlation with yield response of Sudan-sorghum hybrid grass on Quebec soils. Plant Soil 33, 120–128 (1970). https://doi.org/10.1007/BF01378204
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01378204