Two field experiments were conducted in the two locations (Marawaa and in El-wasiata) situated at 21° 24´ and 21° 39´ N ;32° 20`and 32° 47´ E and 508, 185m over sea altitude for the 2 situates, respectively, during 2014/2015 season to study the response of the six rows barley variety rehan sown by the rate 70 kgha-1 in lines 15cm apart to the nitrogen levels (0,50,100&150Kg N/ha-1) in the form of urea 46%.
The experiments were carried out in RCBD with 4 replicates, plat area was (25m2).
The Results revealed significant (P<0.01) effect on plant height in El-wasiata ,number of economic tillers and spike traits in both locations ,where the greatest incase resulted from 150Kg N/ha-1 compared to the control.
Biological yield was significantly (P<0.01) affected by N-levels, the least yield (3.65, 3.76 t/ha) due to control however the highest (4.11, 4.63 t/ha) resulted from 150Kg N/ha-1 application in the first and second locations, respectively.
Although there were increases in grain yield from 1.46, 1.51 t/ha due to non fertilization to 1.87, 1.96 t/ha due to 150Kg N/ ha application, but these differences did not reach the significance level in both location, .Straw yield exhibited significant (P<0.01) increases from ( 2.11, 2.24 t/ha) in control treatment to (2.4, 2.5 t/ha) at 150KgN/ha application .
Harvest index was not significantly affected by N-levels in both sites, while 1000 – grain weight affected significantly (P<0.01)where the least values (35.86, 35.20g) due to 50Kg N/ha-1 and zero comparing to the highest (39.20, 37.40g) resulted from 150Kg N/ha in both Marawaa and El-wasiata, respectively.
Hessain, T. F., Moftah, A. G., & Moftah, F. K. (2019). Effect of Nitrogen Levels on Barley (Hordeum vulgare L.) Crop Yield and Its Components at Mrawa and El-Wasiata, El-Jabal Al-Akhdar Libya. Alexandria Science Exchange Journal, 40(JANUARY- MARCH), 123-129. doi: 10.21608/asejaiqjsae.2019.126600
MLA
Tayeeb Farag Hessain; Amal Gmaa Moftah; Farag Khamees Moftah. "Effect of Nitrogen Levels on Barley (Hordeum vulgare L.) Crop Yield and Its Components at Mrawa and El-Wasiata, El-Jabal Al-Akhdar Libya", Alexandria Science Exchange Journal, 40, JANUARY- MARCH, 2019, 123-129. doi: 10.21608/asejaiqjsae.2019.126600
HARVARD
Hessain, T. F., Moftah, A. G., Moftah, F. K. (2019). 'Effect of Nitrogen Levels on Barley (Hordeum vulgare L.) Crop Yield and Its Components at Mrawa and El-Wasiata, El-Jabal Al-Akhdar Libya', Alexandria Science Exchange Journal, 40(JANUARY- MARCH), pp. 123-129. doi: 10.21608/asejaiqjsae.2019.126600
VANCOUVER
Hessain, T. F., Moftah, A. G., Moftah, F. K. Effect of Nitrogen Levels on Barley (Hordeum vulgare L.) Crop Yield and Its Components at Mrawa and El-Wasiata, El-Jabal Al-Akhdar Libya. Alexandria Science Exchange Journal, 2019; 40(JANUARY- MARCH): 123-129. doi: 10.21608/asejaiqjsae.2019.126600
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