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 | ||||
| Article 25, Volume 40, JANUARY- MARCH - Serial Number 1, January 2019, Page 123-129 PDF (1.63 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asejaiqjsae.2019.126600 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Tayeeb Farag Hessain* 1; Amal Gmaa Moftah* 2; Farag Khamees Moftah* 2 | ||||
| 1Crop Department - College of Agriculture - Omar Al-Mukhtar University. | ||||
| 2Ministry of Agriculture - Green Mountain sector | ||||
| Abstract | ||||
| 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. | ||||
| Keywords | ||||
| Barley crop; Nitrogen levels | ||||
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