Nisreen Soudah(1) Abdulnaser Aldarir(1) and Abdulghani Alkhaldi*(2)
(1).Department of Rural Engineering, Faculty of Agricultural Engineering, Aleppo University, Aleppo, Syria.
(2). Aleppo Research Center, General Commission for scientific Agricultural Research GCSAR, Damascus, Syria.
(*Corresponding author: Dr. Abdulghani Alkhaldi. E-Mail: abdulgh64@gmail.com).
Received: 15/04/2020 Accepted: 06/09/2020
Abstract
Cotton is considered one of the most important strategic summer crops cultivated due to the role it plays in supporting the national economy, providing foreign exchange and securing the raw material for the textile industries. The research aimed to reveal and compare the changes in the productive characteristics of the two varieties Aleppo 124 and Aleppo 33/1 at three levels of irrigation (50, 80 and 100%) of water requirement and two methods irrigaion (surface and sprinkler). The experiment was carried out in 2019 at the Agricultural Scientific Research Center in Hama. The total water consumption of Aleppo 124 variety reached by the method of sprinkler irrigation 8279 m3/ha, and (6823, 4684 m3/ha) for the two treatments (80, 50%), respectively. As for the surface irrigation method, it reached 9845 m3/ha, and (8075, 5491 m3/ha) for the above two treatments, respectively. The increase in productivity by the method of sprinkler irrigation was estimated at 31% compared to the method of surface irrigation, and Aleppo 124 variety surpassed Aleppo 33/1 by about 18%. The results showed that there were no significant differences in productivity between 100% and 80% treatments. Thus, the possibility of irrigating the cotton crop by 80% of its water needs, and providing water and using it to irrigate additional areas. It can also be emphasized that the Aleppo 33/1 cultivar can be replaced by the new Aleppo 124 cultivar because of its production characteristics.
Keywords: Cotton, Water requirement, Sprinkler irrigation, Surface irrigation. Deficit irrigation. Full paper in Arabic: PDF