Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3835

Full Length Research Paper

Effect of organic and biofertilizers on growth, herb yield and volatile oil of marjoram plant grown in Ajloun region, Jordan

Ahmad H. Al-Fraihat1, Sati Y. A. Al-dalain2, Mohammad S. Abu-Darwish3, Jalal A. Al-Tabbal4 and Ziad B. Al-Rawashdeh2
1Department of  Applied Science, Ajloun University College, Al-Balqa` Applied University, Ajloun, Jordan. 2Department of Agricultural Science, Ash-Shoubak University College, Al-Balqa’ Applied University, Ash-Shoubak, Jordan. 3Department of Basic and Applied Sciences, Ash-Shoubak University College Al-Balqa’ Applied University, Ash-Shoubak, Jordan. 4Department of Applied Science,  Al-Huson university collage, Al-Balqa Applied University, Al-Huson, Jordan.
Email: [email protected]

  •  Accepted: 24 February 2011
  •  Published: 04 July 2011


This experiment was carried out during two successive seasons of 2007/2008 and 2008/2009 in Ajloun region, to study the effect of organic manure (farmyard manure and poultry manure at a rate of 75 m3/ha as fertilizer of each) and biofertilizers (Nitraboein and Halex-2 at a rate of 988 gm/ha of each as well) as their interactions on growth, yield of herb and volatile oil of Majorana  hortensis L., using  drip irrigation system. The results indicated that the application of a poultry manure as an organic fertilizer to marjoram plants recorded the maximum values of herb fresh and dry yield, N, P and K contents and its uptake by herb in the early cut, volatile oil percentage, oil yield/ plant and per hectare, while in the late cut, the highest values in this respect were obtained by farmyard manure application. Marjoram transplant treated with halex-2 biofertilizers gave the highest values of herb fresh and dry yield, N, P and K contents and its uptake by herb in the early cut, in addition to, volatile oil percentage, oil yield/ plant per hectare, while plants treated with nitrobein biofertilizers gave intermediate values at different cut in this respect. The combination of poultry manure and halex-2 proved to be the superior treatments, which reflected in the greatest influence upon all the studied characters, that is, fresh and dry herb yields, mineral contents, highest volatile oil percentage and oil yield/ plant of marjoram plant, followed by FYM combined with the same biofertilizers and may be recommended under similar conditions of this work.


Key words: Biofertilizers, Jordan, halex-2, marjoram, nitrobein, organic, poultry manure, volatile oil.