Awadis Arslan(1), Entessar Al Jbawi(1), Ziad Al Ibrahim(2)& Khaled Al Ismaeel(2)
(1). General Commission for Scientific Agricultural Research (GCSAR). Douma, P. O. Box 113, Damascus, Syria.
(2). Scientific Agricultural Research Center of Der- Al Zur. Der-Al Zur, Syria.
(Corresponding author: Dr. Entessar Al Jbawi: General Commission for Scientific Agricultural Research (GCSAR). Douma, P. O. Box 113, Damascus, Syria. E-mail: dr.entessara@gmail.com).
Received: 19 / 07 / 2014 Accepted: 04 / 10 / 2014
Abstract
The field experiment was conducted at Al Mray’eyh Research Station, Scientific Agricultural Research Center of Der- Al Zur (NE Syria) during 2009/2010 and 2010/2011 seasons, to study the effect of two methods of irrigation (sprinkler, furrow) and five levels of nitrogen fertilizers (0, 60, 120, 180 and 240), on technological and production traits of three sugar beet varieties, i.e. Dita, Reda, and Nadir in summer time. The experiment was sown in August. A split split plot design was used with four replications. The results exhibited that the addition of 180 pure unit of nitrogen achieved the best technological and production traits. Dita monogerm variety surpassed the other varieties in most of the technological and production characters. It is recommended the sprinkler irrigation, because it increased sucrose percentage (16.2%) and root yield (73.7 ton/ha), as compared with furrow irrigation (15.9%, 67.2 ton/ha) respectively, besides sprinkler irrigation saves water consumption about 20% as compared with furrow irrigation method.
Key words: Sugar beet, Summer time, Irrigation methods, Nitrogen fertilization, Technological traits, Production traits, Varieties.
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