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The efficiency of urea as fertilizer under tropical conditions

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References

  1. Cooke, I. J., The use of nitrogen fertilizers in Britain and their effects on the yield and composition of crops. Agrochimica5, 189 (1961).

    Google Scholar 

  2. Cooke, I. J., Damage to plant roots caused by urea and anhydrous ammonia. Nature194, 1262–63 (1962).

    Google Scholar 

  3. Court, M. N., Stephen, R. C., and Waid, J. S., Nitrite toxicity arising from the use of urea as a fertilizer. Nature194, 1263 (1962).

    Google Scholar 

  4. Devine, J. R. and Holmes, M. R. J., Field experiments on the value of urea as a fertilizer for barley, sugar beet, potatoes, winter wheat and grassland in Great Britain. J. Agr. Sci.61, 391 (1963).

    Google Scholar 

  5. Devine, J. R. and Holmes, M. R. J., Field experiments comparing ammonium sulphate, ammonium nitrate, calcium nitrate and ure combine drilled with spring barley. J. Agr. Sci.61 381 (1963).

    Google Scholar 

  6. Low, A. J. and Piper F. J., Urea as a fertilizer. Laboratory and pot-culture studies. J. Agr. Sci.57, 249 (1961).

    Google Scholar 

  7. Stephen, R. C. and Waid, J. S., Pot experiments on urea as a fertilizer. I A comparison of responses by various crops. Plant and Soil18, 309 (1963).

    Google Scholar 

  8. Stephen, R. C. and Waid, J. S., II. The influence of other fertilizer constituents on the response of maize to urea, Plant and Soil19, 97 (1963).

    Google Scholar 

  9. Stephen, R. C. and Waid, J. S., II. The Influence of rate, form, time and placement. Plant and Soil19, 184 (1963).

    Google Scholar 

  10. Templeman, W. C., Urea as a fertilizer. J. Agr. Sci.57, 237 (1961).

    Google Scholar 

  11. Widdowson, F. V. and Penny, A., Experiments with urea on spring barley. Exptl. Husbandry5, 22 (1960).

    Google Scholar 

  12. Widdowson, F. V., Penny, A., and Cooke, G. W., The value of calcium nitrate and urea for main-crop potatoes and kale, J. Agr. Sci.55, 1 (1960).

    Google Scholar 

  13. Wilkinson, S. R., and Ohlrogge, A. J., Influence of biuret, and urea fertilizers containing biuret on corn plant growth and development. Agron. J.52, 560 (1960).

    Google Scholar 

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  1. B. A. C. Enyi

    Present address: Department of Agriculture, University of Ibadan, Ibadan, W. Nigeria

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  1. College of Agriculture, University of Nigeria, Nsukka, Eastern Nigeria

    B. A. C. Enyi

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  1. B. A. C. Enyi
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Enyi, B.A.C. The efficiency of urea as fertilizer under tropical conditions. Plant Soil 23, 385–396 (1965). https://doi.org/10.1007/BF01347732

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  • DOI: https://doi.org/10.1007/BF01347732

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