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Recovery of Fertilizer-Nitrogen by Rice Grown in a Greenhouse Under Varying Soil- and Climatic Conditions

  • A. C. B. M. van der Kruijs
  • J. C. P. M. Jacobs
  • P. D. J. van der Vorm
  • A. van Diest
Conference paper

Abstract

Under field conditions, the efficiency with which urea is utilized by paddy rice is commonly low. Recovery values below 50% are often reported1. Volatilization of NH3 formed in alkaline media, after hydrolysis of the urea to (NH4)2 CO3, and denitrification of NO3, after formation from NH4, are usually looked upon as the main causes of low efficiency of urea-N.

Keywords

Irrigation Water Rice Plant Paddy Rice Wetland Condition Volatilization Loss 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. (1).
    De Datta, S.K., Stangel, P.J. and Craswell, E.T. Evaluation of nitrogen fertility and increasing fertilizer efficiency in wetland rice soils. Proc. Symp. Rice Soils, Nanjing, People’s Republic of China, - (1981).Google Scholar
  2. (2).
    Broadbent, F.E. Nitrogen transformation in flooded rice. Soil and Rice, Int. Rice Research Inst., Los Banjos, Philippines, 543–559 (1978).Google Scholar
  3. (3).
    Ishizuka, Y. The rice yield competition in Japan, Potash Review, subject 9, no. 6, Int. Potash Inst., Berne, Switzerland (1979)Google Scholar

Copyright information

© Science Press, Beijing and Springer-Verlag Berlin Heidelberg 1981

Authors and Affiliations

  • A. C. B. M. van der Kruijs
    • 1
  • J. C. P. M. Jacobs
    • 1
  • P. D. J. van der Vorm
    • 1
  • A. van Diest
    • 1
  1. 1.Department of Soil Science and Plant NutritionAgricultural UniversityWageningenNetherlands

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