Skip to main content
Log in

Response of rice to different forms of urea and phosphorus fertilization under intermediate deepwater conditions (15–50 cm)

  • Short Communications
  • Published:
Plant and Soil Aims and scope Submit manuscript

Summary

Under intermediate deepwater condition with water depths of 15–35 cm during most of the crop growth period, sulphur coated urea and urea supergranule placement was superior to prilled urea in increasing the relative uptake and grain yield (23–25%) of rice. A semi-tall variety (CR 1016) responded better to the nitrogen application than a tall variety (CR 1030).

The crop fertilized with N produced more number of tillers and grain yield than the unfertilized crop under complete submergence for 6 days at seedling establishement stage (8 days after transplanting) followed by waterlogging of 25±5 cm throughout the crop growth period. Application of phosphorus together with nitrogen increased the grain yield (9–14%) over nitrogen alone. Crop fertilized with these two nutrients (NP) increased their uptake and yield components.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

References

  1. Chapman H D and Pratt P F 1961 Methods of analysis for soils, plants and waters. Univ. of California, Div. Agril. Sci., Riverside California, USA.

    Google Scholar 

  2. IRRI 1974 International Rice Research Institute. Annual report for 1973, Los Banos, Philippines, 266 p.

  3. Mikkelson D S et al. 1978 Soil Sci. Soc. Am. J. 42, 725–730.

    Google Scholar 

  4. Mortland M M and Wolcott A R 1965 Sorption of inorganic nitrogen compounds by soil materials. pp. 150–198.In Soil Nitrogen. Eds. W V Bartholomew and F E Clark. Agronomy 10.

  5. Pesek J, Standord C and Case N L 1976 Nitrogen production and use. p 217–266.In Fertilizer Technology and Use. Eds. R A Olsen et al., Soil Sci. Soc. Am., Inc., USA.

    Google Scholar 

  6. Yoshida S et al. 1976 Laboratory manual for physiological studies of rice. IRRI, Los Banos, Philippines, 83 p.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Reddy, M.D., Mittra, B.N. Response of rice to different forms of urea and phosphorus fertilization under intermediate deepwater conditions (15–50 cm). Plant Soil 84, 431–435 (1985). https://doi.org/10.1007/BF02275481

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02275481

Key words

Navigation