1887

Abstract

Summary

The intensification of agriculture is closely related to the use of fertilizers, which has led to a significant increase in the pollution of waters. Globally, the share of diffuse water pollution has exceeded the role of point sources. Experimental studies on small plots were conducted to assess the impact of fertilizers on the nitrogen leaching from the catchment area during snowmelt event. Ammonium nitrate in dose of 300 kg per ha was applied to one of the plots. 18.6% of nitrogen compounds were additionally leached from the fertilized plot compare to the control one. In the undisturbed conditions the nitrogen emission is equally provided by surface flow and a subsurface flow, whereas upon applying fertilizers it is almost completely determined by a subsurface flow -97%. Obtained data showed that 96% of N water emission within agricultural area are provided by fertilizers. Due to good solubility the nitrate leaching from catchment was significantly higher in comparison with the ammonium form. The part of NO3- compounds in a surface flow was 42% in natural conditions and 2% on the fertilized plot. It was 58% and 98% correspondingly in a subsurface flow. Fertilizer application did not increase ammonium outcome from the catchment.

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/content/papers/10.3997/2214-4609.20215K2016
2021-11-17
2024-03-29
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References

  1. FAO and IWMI
    FAO and IWMI (2017). Water pollution from agriculture: a global review. Executive summary, 29. (www.fao.org/publications)
    [Google Scholar]
  2. Kazakova, I.V.
    (2015). Features of formation of the world and domestic markets of mineral fertilizers. Economics and Forecasting, 2, 104–118.
    [Google Scholar]
  3. Krainov, S., Zakutin, V.
    (1993). Groundwater pollution in agricultural regions. M., 86.
    [Google Scholar]
  4. Klechkovsky, V.M., Petersburg, A.V.
    (1967). Agrochemistry. M.: “Kolos”, 583.
    [Google Scholar]
  5. Akhmetyeva, N., Lola, M., Goretskaya, A.
    (1991). Groundwater pollution by fertilizers, M.: Nauka, 100.
    [Google Scholar]
  6. Sokolov, A.V.
    (1973). Agrochemical characteristics of the soils of the USSR, Ukrainian SSR. M.: Nauka, 343.
    [Google Scholar]
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