Effect of Nitrogen Fertilization Rates on Some Physiological Properties of Barley Crop (Hordeum vulgare L.) in Marwa and Al-Wasitah Regions in Al-Jabal Al-Akhdar, Libya.
Keywords:Barley, Physiological behavior, Nitrogen levels
The aim of this study is to investigate the barley crop (Hordeum vulgare L.) behavior in different environments to the levels of nitrogen added in the form of urea 46%. A field experiment was conducted in the areas of Marawah, south of Al-Jabal Al-Akhdar, and Wesata which are located at ̊21 2̀4 , ̊21 3̀9 North , ̊32 2̀0 , ̊32 4̀7 East, and 508 , 185 m above sea level for both sites respectively, to study the effect of nitrogen levels (0, 50, 100 and 150 kg ha¹) on some of the growth traits of barley( c.v Rehan) sown in the rate of 70kg ha¹ by drilling (15cm apart) during the growing season 2014/15. The experiment was laied out in RCBD by 4 replicates with 25m² for each. The results showed significant differences in crop growth rate (CGR), relative growth rate (RGR), photodegradation (NAR), leaf area index (LAI) with 150 kg / h. Sustainable yield (BMD) significantly increased with the addition of 100 kg / h compared to non-fertilization in both study sites. leaves chlorophyll a , b and total content responsed to nitrogen levels by significant increase (P<0.01) in chl a in both sites and at Wesataincase of chl b and total , meanwhile chl b and total were not affected by nitrogen levels in Marawa.
Alam, M., Haider, S., & Paul, N. (2007). Yield and yield components of barley (Hordeum vulgare L.) cultivars in relation to nitrogen fertilizer. Journal of Applied Sciences Research, 3(10), 1022-1026.
Andreasen, C., Litz, A. S., & Streibig, J. C. (2006). Growth response of six weed species and spring barley (Hordeum vulgare) to increasing levels of nitrogen and phosphorus. Weed research, 46(6), 503-512. DOI: https://doi.org/10.1111/j.1365-3180.2006.00519.x
Black, C. A. (1965). Methods of soil analysis, part II. Amer. Soc. Inc. Pub., Madison, USA, 770-779.
Dhawan, R. S., Bhasker, P., Chawla, S., Punia, S., Singh, S., & Angrish, R. (2010). Impact of aryloxyphenoxypropionate herbicides on Phalaris minor in Haryana. Indian Journal of Weed Science, 42(3and4), 136-143.
Gardner, F.P ; Earce, R.B.P and Michelle, R.L.(1985). Physiology of crop plants (ed). Iowa state Univ. press Arwes, pp:327
Ghanbari, A., Babaeian, M., Esmaeilian, Y., Tavassoli, A., & Asgharzade, A. (2012). The effect of cattle manure and chemical fertilizer on yield and yield component of barley (Hordeum vulgare). African Journal of Agricultural Research, 7(3), 504-508. DOI: https://doi.org/10.5897/AJAR11.1133
Hossain, B., & Akhtar, M. (2014). Growth and yield of barley (Hordeum vulgare L.) as affected by irrigation, sowing method and phosphorus level. Academia Journal of Agricultural Research, 2(1), 30-35.
Institute, S. (2009). Using JMP Student Edition for Windows and Macintosh: The User's Guide to Statistics with JMP Student Edition: SAS Institute.
Kulda, M. (1988). Reaction of spring barley lines to increased nitrogen fertilization. Field. Crop. Abst , 2(9), 1990
Miralles, D. J., Ferro, B. C., & Slafer, G. A. (2001). Developmental responses to sowing date in wheat, barley and rapeseed. Field Crops Research, 71(3), 211-223. DOI: https://doi.org/10.1016/S0378-4290(01)00161-7
Monaco, T. A., MacKown, C. T., Johnson, D. A., Jones, T. A., Norton, J. M., Norton, J. B., & Redinbaugh, M. G. (2003). Nitrogen effects on seed germination and seedling growth. Rangeland Ecology & Management/Journal of Range Management Archives, 56(6), 646-653. DOI: https://doi.org/10.2307/4003941
Mousavi, M., Soleymani, A., & Shams, M. (2012). Effect of cultivars and nitrogen on growth and morphological traits of barley in Isfahan region. International Journal of Agriculture and Crop Sciences (IJACS), 4(22), 1641-1643.
Natr, L. (1997). The effect of nitrogen on dry matter allocation in young spring barley plants (Hordeum vulgare). Scientia Agriculturae Bohemica (Czech Republic).
Snedecor, G. W., & Cochran, W. G. (1989). Statistical methods, 8thEdn. Ames: Iowa State Univ. Press Iowa.
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