Effect of different rates of nitrogen fertilizer on growth, seed yield, yield components and quality of canola (Brassica napus L.) under arid environment of Saudi Arabia
Paper Details
Effect of different rates of nitrogen fertilizer on growth, seed yield, yield components and quality of canola (Brassica napus L.) under arid environment of Saudi Arabia
Abstract
Canola (Brassica napus L.) was planted for two consecutive seasons (2004-05 and 2005-06) in the Arid Land Agricultural Research Station, King Abdul Aziz University at Hada Al-Sham to determine the effect of different rates of nitrogen fertilizer (0, 60, 120 and 180 kg N/ha) on crop growth, seed yield, yield components and seed quality. Nitrogen was applied in three equal splits, 2 weeks, 4 weeks and 8 weeks after planting during each crop season. Randomized complete block design, with four replications was used. Statistical analysis of the obtained data presented that nitrogen at a rate of 180 kg N/ha dominated other N rates of 120, 60, 0 kg N/ha for plant growth, yield and quality parameters except seed oil content that were higher at 120 Kg N/ha level. An overall improvement of 59% in plant height, 112% in number of branches, 111% in number of fruits/plant, 87% in 1000 seed weights and 19% in crude protein content were documented for 180 Kg N/ha. On contrary a reduction of 5% in oil content was recorded by moving from 120 Kg N/ha to 180 Kg N/ha. Current results suggested that N at a rate of 180 Kg/ha can be adopted as best level of nitrogen fertilizer for canola cultivation under arid land conditions of Saudi Arabia.
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Samir G. Al-Solaimani, Fahad Alghabari, Muhammad Zahid Ihsan (2015), Effect of different rates of nitrogen fertilizer on growth, seed yield, yield components and quality of canola (Brassica napus L.) under arid environment of Saudi Arabia; IJAAR, V7, N2, August, P1-7
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