dr.osman daffallah
Sudan,khartoum · +249917577516 /+97156476687
o.ali.elkhaldi@gmail.comTechnical Advisor and Task leader of Agricultural Development Unit(ADU), Kenana Engineering & Technical Services Co. Ltd.
personal informationName : Osman Ahmed Ali dafallhaNationality : SudaneseDate of appointment: 21/5/1979Date of birth :01/01/1953Marital status : Married with 6 childrenReligion : islamLanguages : Arabic, English and FrenchEmployment and Promotion Career2013 to date: Technical Advisor and Task leader of Agricultural Development Unit(ADU), Kenana Engineering & Technical Services Co. Ltd2012 : Appointed as Research and Development Manager upon retirement and to date continued as Advisor in KETS (Kenana and engineering services ).2008-2009 : Promoted Research & development, Manager- KSC Ltd.1999 : Promoted to Deputy, Director Sugarcane Research Departm (SCRD) .1986 – 1998 : Promoted to Post of Head of Agronomy Section, Sugarcane Research Department - KSC - Sudan. Responsibilities involve the setting and implementation of sugarcane Agronomy programmes, which cover both sugarcane nutrition and cultural practices.1979- 1986 : Appointed as agronomist in the Sugarcane Research Department of Kenana Sugar Co. Ltd. Research work involves the establishment of Agronomy experiments to determine sugarcane requirement for N, P and K etc. management and supervision of the trials under field conditions, collections and statistical analysis of cane yield and report writing.1978 – 1997 : Upon graduation from the Faculty of Agric., University of Khartoum -Sudan in 1978, joint plant protection division as a field inspector. Work involves surveying and giving technical recommendations for controlling national pests e.g. birds and locusts.QualificationsB.Sc Agric. University of Khartoum 1978M.Sc Agric. Sciences, University of Khartoum, 1986. Title Sugarcane response toapplied potassium at different soil K levels at Kenana Sugar Co.PHD Soil Sciences.University of Gezira, 1998. Title Long term effect of soil management practices for sugarcane production on some physical and chemical properties of Kenana vertisols.Training CoursesSpecial training course on sugarcane production, Luknow, India (July 1981 October 1981).Training course on soil and plant analysis at MSIRI Mauritius (August - November 1992).Three training courses on soil chemistry and soil physics at CIRAD, Montpellier, France (1995-1998) for a period of 18 months. The training was part of PhD training courses.A course on Biometrics and experimental design by M. Isobe.Scientific consultant,. SPA, - Hawaii.Training course on Managing People, by Graham Yemm, Middle East .Management Centre, at Kenana Sugar Company Ltd.3-7 September,2000.


International VisitsVisited many growing sugarcane countries worldwide which includes Cuba, Brazil, India, South Africa, Mauritius, Kenya, Ethiopia ,Egypt and Nigeria .
ConferencesAttending international sugar conference, Havana ,CUBA,December 1999. Attending, first Islamic trading exhibition, Jeda, Saudia Arabia 2001.Participated in workshop on promotion of fertilizer industry in the Sudan, Dec. 19, 2006.Participated in a conference for White Nile Sugar Project (WNSP), 2006.Consultancy workAdvisory work was done in Sudan for new sugar projects namely White Nile Project and Elridais New project, in addition to Kenya and currently involved in consultancy work(Prefeasibility study in Nigeria for establishing new sugarcane plantation schemes) .The following is a summary of achievements and activities1. Nutrition of sugarcane:Initiated trials to determine requirement of sugar cane for nitrogen. Actual requirements recommended and adopted currently in the Estate.Initiated trials to determine requirements of sugar cane for phosphorus fertilizer and actual requirements recommended currently adopted in the Estate.After a series of experiments, it was recommended to do without Potash which was previously applied in the estate. This saving considerable amount of money for Kenana.Trace elements investigation is under way.Investigations are continued for varieties nutritional requirements of late ratoon.Completed recently studies on the physical and chemical changes that occurred in Kenana soil as a result of sugarcane continuous mono cropping, and the impact of irrigation water quality on soil chemistry.Recommended use of compound fertilizers Nitrophoska and Ammonium sulphate nitrate as alternative options in sugarcane fields.Recommended reduction of Nitrogen rate from 92 Kg N/F to 69 Kg N /F for cane planted in a fallow land.Recommended 69 Kg N /F (3 bags of urea) for first and second cane ratoon and 80 kg N/F(3.5 bags of urea) for third and forth ratoon cycles.2. Cultural Practices :Investigations showed that inter-row ripping in ratoon fields could be stopped thus saving money for the Estate.Determined optimum row spacing for cane and recommendation adopted and yield increase anticipated (The row spacing was changed from 1.67m to 1.55m).Recommended the best and economical planting method for sugarcane.Membership of CommitteesMember of the Sudanese Sugar Technologist (SSTA) Sudan.Secretary of the Agricultural Joint Committee of Kenana Sugar Co. Sudan.Member of the National Sugarcane Technical Committee, Sudan.PublicationsAgronomy Annual Research Programmes Since 1981 till 1998.Agronomy Section annual reports since 1981 till 1998.Isobe , M. and Ali O.A. (1983). Preliminary assessment of K and P Trials at Kenana Sugar Co. Ann Rep. Sudan .Ali .O.A (1986) Sugarcane response to applied potassium at different soil K levels at Kenana Sugar Co. M.Sc Thesis, University of Khartoum, Fac. Of Agric. Shambat, Sudan .Ali, O.A. (1998). Long term effect of soil management practices for sugar cane production on some physical and chemical properties of Kenana varieties. Ph.D. Thesis, dept. of soil and water sciences, Fac. Of Agric. sciences U.of G.Ali. O.A (1987) Sugarcane response to applied nitrogen fertilizer, under Kenana soil conditions, Kenana Sugarcane Res. Dept. Ann. Report.Mohamed, E.Y.E Yousif and O.A.Ali (1991). Phosphorous fertilisation of sugarcane. Technical Committee, Guneid , Sudan.Ali, O.A. and D.M. Abdel Wahab (1996). Importance of phosphorous in sugarcane nutrition. Kenana Sugarcane Res. Dept. Ann report.Ali, O.A. A. I. Adam and A.A. Salih (1998). The effect of soil management practice for sugar cane production on some soil physical and chemical properties at Kenana Sugar Co. Proceeding of soil and water research centre, ARC Medani.Ali O.A. A. I. Adam, A.A. Salih & M. Brouwers (1999). Effect of cultivation of sugarcane on soil bulk density and soil water content. Sudan Journal of Agric.Res (pp: 19-22)Brouwers M., S.Marlet & Ali O.A. (1999). L`evolution du sol sous canne a sucre irriguee, a Kenana au Soudan. Agriculture et developpement (pp : 63-68)Ali O.A., A.I Adam, .A.Salih & M. Brouwers (2000). Transformation of urea in the soil of Kenana Scheme. Sudan Journal of Agric.Res. (pp: 15-19)