Determination of Optimum Level of Fertilizer Nitrogen for Varrieties of Wheat (Triticum aestivum L.)
Titel:
Determination of Optimum Level of Fertilizer Nitrogen for Varrieties of Wheat (Triticum aestivum L.)
Auteur:
Aman Ullah Chaudhry R. Mehmood
Verschenen in:
Pakistan journal of biological sciences
Paginering:
Jaargang 1 (1998) nr. 4 pagina's 351-353
Jaar:
1998
Inhoud:
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 ha+ while the cultivars were Inqualab-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 along with 118 kg P2O5 ha-1 was found to be an optimum does. Nitrogen application beyond range of 150 to 200 kg ha –1 will not be profitable. Protein contents of wheat grain increased with increasing level of nitrogen. Inqualab-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 inqualab-91 was 4.35 t ha-1 and Pasban-90 was 3.66 t ha-1.
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