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Pakistan Journal of Biological Sciences
  Year: 1998 | Volume: 1 | Issue: 4 | Page No.: 351-353
DOI: 10.3923/pjbs.1998.351.353
 
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Determination of Optimum Level of Fertilizer Nitrogen for Varieties of Wheat (Triticum aestivum L.)
Aman Ullah Chaudhry and R. Mehmood

Abstract:
Investigation to compare the growth, yield and protein percentage in grains of two wheat varieties under varying levels of nitrogen were carried out in sandy loam soil. The nitrogen levels comprised 0, 50, 100, 150, 200 and 250 kg he–1 while the cultivars were lnqualab-91 and Pasban-90. The results showed that the various components of wheat crop such as number of tillers per unit area, spike bearing tillers, grain weight per spike, 1000-grain weight, grain yield and straw yield were affected significantly by different levels of nitrogen. Nitrogen application in the range of 150 to 200 kg ha–1 alongwith 118 kg P205 ha–1 was found to be an optimum dose. Nitrogen application beyond range of 150 to 200 kg–1 ha will not be profitable. Protein contents of wheat grain increased with increasing level of nitrogen. lnqualab-91 produced significantly more number of fertile tillers per unit area, 1000-grain weight, higher harvest index and straw yield than Pasban-90. The average grain yield of lnqualab-91 was 4.35 t ha–1 and Pasban-90 was 3.66 t ha–1.
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How to cite this article:

Aman Ullah Chaudhry and R. Mehmood, 1998. Determination of Optimum Level of Fertilizer Nitrogen for Varieties of Wheat (Triticum aestivum L.). Pakistan Journal of Biological Sciences, 1: 351-353.

DOI: 10.3923/pjbs.1998.351.353

URL: https://scialert.net/abstract/?doi=pjbs.1998.351.353

 
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