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Effect of sowing rate and nitrogen fertilization on yield and yield components of two wheat cultivars under rainfed conditions in northern Iraq



Effect of sowing rate and nitrogen fertilization on yield and yield components of two wheat cultivars under rainfed conditions in northern Iraq



Iraqi Journal of Agricultural Sciences, ' ZANCO' 5(Suppl.): 123-133



The effects of 3 sowing rates (60, 100 and 140 kg/ha) and 3 N levels (0, 40 and 80 kg N/ha) on yield and yield components of the local wheat Saber-back and Nouri-70 were studied under rainfed conditions at 2 sites in N. Iraq in 1981-82. Spikes/plant, spikes/msuperscript 2, biological yield and grain yields were significantly higher with Saber-back whereas spike length, grain number and wt/spike and harvesting-index were higher in Nouri-70.

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