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Nitrogen Fertilization and Its Effect on Growth Indicators of Wheat Yield in Saline Soils
Abstract
Wheat is the vanguard of global strategic crops due to its nutritional importance, which constitutes a food source for more than 35% of the world's population. Nitrogen fertilization is considered as one of the most important factors that affect the growth and productivity of any crop, as indicated by many studies. The present experiment was carried out during the period 2017–2018 agricultural season in Samno, one of the southern regions of Libya; with the aim of determining the optimal amount of nitrogen that gives the highest productivity of wheat as well as the effect of late cultivation on wheat in saline soil and its effect on the growth indicators of the wheat plant. Wheat plant and six nitrogen levels were used in the present study (0, 50, 100, 150, 200 and 250 kg nitrogen/ha). The results gave preference to the treatment 150 kg N/ha for most growth indicators of wheat plants (leaf area, grain weight, straw weight, whole plant weight) and the treatment 200 kg N/ha gave the highest plant height. The treatment of 250 kg nitrogen/ha gave the longest spike of all growth indicators. As for the late cultivation and soil salinity, it was observed that the wheat plant was adapting to the exclusion of other agricultural crops. The aim of the present study was to reach the optimal amount of nitrogen that gives the highest productivity of wheat plants and to study the effect of late planting on it, as well as cultivation in saline soil and its effect on the growth indicators of the head of the plant.
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References
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