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SUSTAINABLE USE OF SALINE WATER FOR IRRIGATION OF CROP

Author(s): NEW STRATEGIES
Congress: 2008
Author(s): J. MANIA1, A. ARSLAN2, Y.HAJ GHARIB2, A. ALKRACH2 and A. ZAOUI1
1 Laboratoire de mécanique de Lille, UMR CNRS 8107, Polytech'Lille, Université des Sciences et Technologies de Lille, 59655 Villeneuve d’Ascq, France. 2 Administration of Natural Resources Research (ANRR), The General Commission for Scientific Agricultu

Keyword(s): Key words: Saline water, cotton, trickle irrigation, water management, arid zone, Euphrates River.
AbstractAbstract In this paper, The response of cotton (variety cv - D22 genotypes of G. hirsutum L) to different salinity levels of irrigation water under the Mediterranean climatic conditions was investigated in a field study at Almria research station at Deir Al Zoor governorate in eastern Syria, during the 1999 growing season. Saline waters with electrical conductivity values of 1.1 (Euphrates River water), 2.7, 4.3, 5.9, and 7.5 (drainage water) dS.m-1 were used for irrigation of cotton. The average yields ranged from 2.956 to 4.443 ton.ha-1 in different treatments. Variance analysis of the yield data showed that the effect of salinity levels of irrigation water used in the study on yields was significantly different. Water use efficiency (WUE) values from the treatments ranged from 0.39 to 0.26 kg.m3. As the salinity level of irrigation water increased WUE values also decreased slightly. There was a significant relationship between yield and irrigation water, and there was also a significant relationship between yield and soil salinity at initial stage induced by the experiment. Thus, saline irrigation water can safely be used for irrigation of cotton crop in the semi arid conditions if we apply leach the salts out of the root zone as long as an efficient drainage system is provided.
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