Summary
In an incubation experiment the mineralization of gulmohur leaves (Delonix regia L.) added to soil was studied at increased levels of exchangeable sodium percentage (ESP). CO2 evolution, total mineralization of carbon and humic/fulvic acid carbon ratio increased with increased ESP and the process of nitrification was inhibited completely between 70–92 ESP. The mineralization and losses of nitrogen were equal to control up to 70 ESP but were very high at 92 ESP. The extractable carbon varied from 26% in case of control to 31% at 48.6 ESP.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A.O.A.C., Official Methods of Analysis (10th ed.). Association of Official Agric. Chemists, Washington, D.C. (1965).
Brown P. E. and HitchcockE. D., The effects of alkali salts on nitrification. Soil Sci. 4, 207–229 (1917).
Gibbs W. H., BatchelorH. W. and MagnusonH. P., The effects of alkali salts on bacteriological activities in soil. II. Nitrification. Soil Sci. 19, 357–369 (1925).
Hamsen G. W. and VanSchrevenD. A., Mineralization of organic nitrogen in soil. Adv. Agron. 7, 299–398 (1955).
Jackson M. L., Soil Chemical Analysis. Prentice Hall Inc., Englewood Cliffs, N.J. (1958).
Kononova M. M., Soil Organic Matter. 2nd Ed. Pergamon Press, Oxford (1966).
Laura R. D., Effects of sodium carbonate on carbon and nitrogen mineralization. of organic matter added to soil. Geoderma 9, 15–26 (1973).
Laura R. D., Nitrogen and humus in saline and sodic soils near Delhi, India. Geoderma 10, 193–213 (1973).
Laura R. D., Effects of neutral salts on carbon and nitrogen mineralization of organic matter in soil. Plant and Soil 41, 113–127 (1974).
Pathak A. N. and JainS. L., Effect of alkali salts. II. On nitrification. J. Soil Water Conserv. India 13, 30–32 (1965).
Pramer D. and SchmidtE. L., Experimental Soil Microbiology. Burgess Publishing Co., Minneapolis, Minnesota, U.S.A. (1964).
Prasad, R. and Lancaster, J. D., A modified phenoldisulphonic acid method. Proc. Sess. Indian Sci. Conf. Assoc., 50th New Delhi, Proc. 50th Session Indian Sci. Congr. Part III, 599 (1963).
Prince A. L., Determination of total nitrogen, ammonia, nitrates and nitrites in soils. Soil Sci. 59, 47–52 (1945).
Richards, L. A., Diagnosis and Improvement of Saline and Alkali Soils, U.S.D.A. Handbook No. 60, Washington, D.C. (1954).
Schuffelen C. A., MullerA. and VanSchouwenburgC. H. J., Quick tests for soil and plant analysis used by small laboratories. Neth. J. Agri. Sci. 9, 11–12 (1961).
SinghT. M., Toxicity of alkali salts. Soil Sci. 6, 463–477 (1918).
Wahhab A. and RasoolG., Effect of different salts and their concentrations on the rate of nitrification of ammonium sulphate. Pakistan J. Sci. Research 12, 47–52 (1960).
Werkhoven C. H. E., FiremanM. and MillerM. D., Growth, chemical composition and yield of safflower as affected by exchangeable sodium. Agron. J. 58, 539–543 (1966).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Laura, R.D. Effects of alkali salts on carbon and nitrogen mineralization of organic matter in soil. Plant Soil 44, 587–596 (1976). https://doi.org/10.1007/BF00011378
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00011378