E.A., A., M.A.El-Borhamy, A. (2018). Response of Flax Plant to Foliar Spray by Urea and Some of Micronutrients Mixture under Different Nitrogen Levels. Alexandria Journal of Agricultural Sciences, 63(4), 251-261. doi: 10.21608/alexja.2018.26150
Abo-Marzoka E.A.; Amal, M.A.El-Borhamy. "Response of Flax Plant to Foliar Spray by Urea and Some of Micronutrients Mixture under Different Nitrogen Levels". Alexandria Journal of Agricultural Sciences, 63, 4, 2018, 251-261. doi: 10.21608/alexja.2018.26150
E.A., A., M.A.El-Borhamy, A. (2018). 'Response of Flax Plant to Foliar Spray by Urea and Some of Micronutrients Mixture under Different Nitrogen Levels', Alexandria Journal of Agricultural Sciences, 63(4), pp. 251-261. doi: 10.21608/alexja.2018.26150
E.A., A., M.A.El-Borhamy, A. Response of Flax Plant to Foliar Spray by Urea and Some of Micronutrients Mixture under Different Nitrogen Levels. Alexandria Journal of Agricultural Sciences, 2018; 63(4): 251-261. doi: 10.21608/alexja.2018.26150
Response of Flax Plant to Foliar Spray by Urea and Some of Micronutrients Mixture under Different Nitrogen Levels
Receive Date: 29 January 2019,
Accept Date: 29 January 2019
Abstract
Two field trial were conducted at Sakha Agricultural Research Station, Kafr El-Sheikh Governorate, Egypt, during 2016/2017 and 2017/2018 winter seasons to study the physiological response of flax (Linum usitatissimum L.) Sakha 3, cultivar to three nitrogen fertilizer rates i.e; 25, 35 and 45 kg N/fad.. in a combination with foliar spray by urea 2(%) plus some of micronutrients mixture of (Fe + Zn + Mn) using concentration at 200 ppm for each element. The maximum values of plant height, fruiting zone length, technical length, as well as, leaf area/plant and dry matter accumulation (g)/m2 at 80 and 95 days after sowing (DAS), crop growth rate (CGR) and net assimilation rate (NAR) at (80–95 DAS) period were obtained when plants received 35 kg N/fad. and foliar spray with urea 2(%)plus 200 ppm micronutrients mixture of (Fe + Zn + Mn). In addition, straw and seed yields, its components, fiber (%), fiber yield, total chlorophyll of leaves at 95 DAS, oil (%) and oil yield. The total saturated fatty acids of flax oil were, gradually, increased with increasing nitrogen fertilizer rate from 25 up to 45 kg N/fad., whereas, the total unsaturated fatty acids were decreased. The minimum value of the total unsaturated fatty acids were obtained from plants received [35 kg N/fad. and a spray with 200 ppm micronutrients mixture of (Fe+ Zn +Mn)].
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