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Nitrification of urea and its loss through volatilization of ammonia under different soil conditions

Published online by Cambridge University Press:  27 March 2009

A. Wahhab ,
Mahmud Khan  and
M. Ishaq
A. Wahhab
Affiliation:
Agricultural College, Lyallpur, West Pakistan
Mahmud Khan
Affiliation:
Agricultural College, Lyallpur, West Pakistan
M. Ishaq
Affiliation:
Agricultural College, Lyallpur, West Pakistan
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Extract

Nitrification of urea and its loss through the volatilization of NH3 were studied under different soil conditions. Under all conditions less urea was nitrified and more time was needed for its nitrification in sandy than in sandy loam soil. Nitrification was favoured at lower concentration of urea, onethird moisture of the moisture-holding capacity and at neutrality or the alkaline pH.

Loss of NH3 was found to be twice as much from the sandy loam as from the sandy soil. It was also found that half of the total loss occurred during first drying. Loss of NH3 from urea was found to be proportional to its concentration. The loss increased with the increase in soil moisture and temperature; but it decreased with the decrease in pH on the acid side and the increase in depth of its placement.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 55 , Issue 1 , August 1960 , pp. 47 - 51
Copyright
Copyright © Cambridge University Press 1960

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References

REFERENCES

Brioux, Ch. (1925). C.R. Acad. Sci., Paris, 179, 915.Google Scholar
Chapman, H. D., Liebig, G. F. & Raynor, D. S. (1947). Hilgardia, 19, 57.CrossRefGoogle Scholar
Crowther, E. M. (1925). J. Agric. Sci. 15, 201.CrossRefGoogle Scholar
Doak, B. W. (1952). J. Agric. Sci. 42, 162.CrossRefGoogle Scholar
Fuller, W. H., Caster, A. B. & McGeorge, W. T. (1950). Tech. Bull. Univ. Ariz. no. 12.Google Scholar
Fraps, G. S., & Sterges, A. J. (1947). Bull. Texas Exp. Sta. no. 693.Google Scholar
Gerretsen, G. F. (1952). Chem. Abstr. 46, 4716.Google Scholar
Greaves, J. E. (1922). Agricultural Bacteriology, p. 230. Philadelphia and N.Y.: Lea and Febiger.CrossRefGoogle Scholar
Jackson, M. L. & Chang, S. G. (1947). J. Amer. Soc. Agron. 24, 15–7.Google Scholar
Jewitt, T. N. (1924). Soil Sci. 54, 401–9.CrossRefGoogle Scholar
Jewitt, T. N. & Barlow, N. W. B. (1949). Emp. J. Exp. Agric. 17, 1.Google Scholar
Jones, H. W. (1932). Soil Sci. 34, 281.CrossRefGoogle Scholar
Joshi, N. V. (1920). Indian J. Agric. Sci. 15, 398.Google Scholar
Koch, A. (1914). Bakt. (II), 40, 24.Google Scholar
Littauer, J. G. & McLean, H. C. (1925). Industr. Engng Chem. 17, 190.Google Scholar
Mann, H. H. & Barnes, T. W. (1951). J. Agric. Sci. 41, 309.CrossRefGoogle Scholar
Martin, W. P., Buehren, T. F. & Caster, A. B. (1942). Proc. Soil. Sci. Soc. Amer. 7, 223.CrossRefGoogle Scholar
Martin, J. P. & Chapman, H. P. (1951). Soil Sci. 71, 25.CrossRefGoogle Scholar
Meiklejohn, J. (1954). Some Aspects of the Physiology of the Nitrifying Bacteria. Autotrophic Microorganisms, p. 68. Cambridge University Press.Google Scholar
Meyerhof, O. (1916). Pflüg. Arch. ges. Physiol. 164, 353.CrossRefGoogle Scholar
Muntz, A. (1890). C.R. Acad. Sci., Paris, 110, 1206.Google Scholar
Negata, T. (1944). Chem. Abstr. 46, 7468.Google Scholar
Norman, A. G. (1943–1947). The Yearbook of Agricultural Science in Farming. Washington, D.C.: U.S.D.A.Google Scholar
Schloesing, Th. & Muntz, A. (1877). C.R. Acad. Sci., Paris, 84, 301.Google Scholar
Schloesing, Th. & Muntz, A. (1889). C.R. Acad. Sci., Paris, 89, 1075.Google Scholar
Sohngen, N. L. (1909). Zbl. Bakt. (II), 23, 91.Google Scholar
Sreenivansan, & Subrahmayan, (1935). J. Agric. Sci. 25, 6.CrossRefGoogle Scholar
Steenbjerg, F. (1944). Soils & Fert. 9, (1).Google Scholar
Wahhab, A. & Din, F. (1954). Soil Sci. 78, 119.CrossRefGoogle Scholar
Wahhab, A. & Din, F. (1955). Soil Sci. 80, 121.CrossRefGoogle Scholar
Wahhab, A., Randhawa, M. S. & Alam, S. Q. (1957). Soil Sci. 84, 249.CrossRefGoogle Scholar
Yamazaki, E. (1918). J. Tokyo Chem. Soc. 39, 125.Google Scholar