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This article in AJ

  1. Vol. 49 No. 3, p. 114-116
     
    Published: Mar, 1957


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doi:10.2134/agronj1957.00021962004900030002x

Effect of Various Sources of Nitrogen on Rice Paddy Yield1

  1. A. Wahhab and
  2. H. M. Bhatti2

Synopsis

Synopsis

Ammonium nitrogen gave much better rice yields than nitrate nitrogen. Calcium cyanamide and urea were also more effective than nitrate nitrogen. Nitrate nitrogen applied just before heading proved more beneficial to rice than that applied at the early stage of plant growth. Generally, ammonium sulphate increased rice yields more than the other nitrogen fertilizers tested.

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