Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-29T21:37:04.689Z Has data issue: false hasContentIssue false
  • English
  • Français

Equations to predict the leaching of nitrate uniformly incorporated to a known depth or uniformly distributed throughout a soil profile

Published online by Cambridge University Press:  27 March 2009

I. G. Burns
I. G. Burns
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick, CF35 9EF
Get access Rights & Permissions [Opens in a new window]

Summary

Equations to predict the leaching of nitrate either uniformly incorporated to a known depth or uniformly distributed in field soils can be reduced to the approximate form:

where f is the fraction of nitrate leached below h cm in a soil of field capacity Vm (% by volume) after P cm of drainage has passed through the profile. If nitrate is initially incorporated uniformly to a depth of w cm, then x = h – ½w(where h ≥ w); if nitrate is distributed uniformly throughout the whole profile, then x = ½h. For surface-applied nitrate x = h (Burns, 1975).

Observed mean displacements in published experiments have been compared with predictions from the equations and from equations in which the mean movement of nitrate and water are assumed equal. The new equations give better agreement with the observed data.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 86 , Issue 2 , April 1976 , pp. 305 - 313
Copyright
Copyright © Cambridge University Press 1976

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Boswell, F. C. & Anderson, O. E. (1964). Nitrogen movement in undisturbed profiles of fallowed soils. Agronomy Journal 56, 278–81.CrossRefGoogle Scholar
Burns, I. G. (1974). A model for predicting the redistribution of salts applied to fallow soils after excess rainfall or evaporation. Journal of Soil Science 25, 165–78.CrossRefGoogle Scholar
Burns, I. G. (1975). An equation to predict the leaching of surface-applied nitrate. Journal of Agricultural Science, Cambridge (in the Press).CrossRefGoogle Scholar
Cassel, D. K. (1971). Water and solute movement in Svea loam for two water management regimes. Proceedings of the Soil Science Society of America 35, 859–66.CrossRefGoogle Scholar
Fox, R. L., Kacar, B., Aydeniz, A. & Zabunoglu, S. (1970). Nitrate accumulation, distribution and utilisation during fallow-wheat culture in Turkish soils. Soil Science 109, 60–5.CrossRefGoogle Scholar
Herron, G. M., Dreier, A. R., Flowerday, A. D., Colville, W. L. & Olson, R. A. (1971). Residual mineral N accumulation in soil and its utilisation by irrigated corn (Zea mays L.) Agronomy Journal 63, 322–27.CrossRefGoogle Scholar
Levin, I. (1964). Movement of added nitrates through soil columns and undisturbed soil profiles. Transactions of the 8th International Congress of Soil Science (Bucharest) IV, 1011–22.Google Scholar
Linsville, K. W. & Smith, G. E. (1971). Nitrate content of soil cores from corn plots after repeated nitrogen fertilization. Soil Science 112, 249–55.CrossRefGoogle Scholar
Paauw, F. Van Der (1962). Effect of winter rainfall on the amount of nitrogen available to crops. Plant and Soil 16, 361–80.CrossRefGoogle Scholar
Rousselle, V. (1913). Le mouvement des nitrates dans le sol et ses consequences relatives à l'emploi du nitrate de soude. Annales de la Science Agronomique, 4th Series 97–115.Google Scholar
Shaw, K. (1962). Loss of mineral nitrogen from soil. Journal of Agricultural Science, Cambridge 58, 145–52.CrossRefGoogle Scholar
Thomas, G. W. (1970). In Nutrient Mobility in Soils: Accumulation and Losses, p. 1. Madison, U.S.A.: Soil Science Society of America.Google Scholar
Vomel, A. (1966). Der Versuch einer Nährstoffbilanz am Beispiel vershiedener Lysimeterböden. I. Mitteilung. Wassersickerung und Nährstoffhaushalt. Zeitschrift für Acker und Pflanzenbau 123, 155–88.Google Scholar
Wetselaar, R. (1961). Nitrate distribution in tropical soils. I. Possible causes of nitrate accumulation near the surface after a long dry period. Plant and Soil 15, 110–20.CrossRefGoogle Scholar
Widdowson, F. V., Penny, A. & Williams, R. J. B. (1961). Autumn nitrogen for winter wheat. Journal of Agricultural Science, Cambridge 57, 329–33.CrossRefGoogle Scholar