Hanan Almhemid*(1), Faraj Naoum(1), Abdulghani Alkhaldi(2), Ahmad Aljomaa(2)
(1). Rural Eng. Dept, Faculty of Agricultural Engineering, Univ. of Aleppo.
(2). Cotton Research Administration, General Commission for Scientific Agricultural Research, Aleppo, Syria.
(*Corresponding author: Hanan almhemid . E-Mail:hananalmhemid@gmail.com).
Received:24/09/2024 Accepted:5/11/2024
Abstract:
The research was carried out during the 2022 agricultural season. at Tal Hadya Cotton Research Station (Aleppo Governorate) affiliated to the Cotton Research Department – General Commission for Scientific Agricultural Research, which is located within the second stability zone. The study area is 267 m above sea level, characterized by a Mediterranean climate with rainfall ranging between 338 and 400 mm. And has deep red clay soil, It was done using one type of surface drip irrigation pipe and two types of subsurface drip irrigation pipes on cotton Aleppo 118 variety, By using space of pipes (70) cm. The experiment was designed according to the randomized block design (General Treatment Structure). The results of the analysis of variance (ANOVA) at the significance level of 5% showed highly significant differences in yield between the types of surface and subsurface drip irrigation pipes at distance 70 cm, where treatment SD2 (subsurface irrigation, second pipe)significantly outperformed treatments TD (surface irrigation pipe) and SD1 (subsurface irrigation pipe, first pipe) by (101.8, 45.6)% respectively. There were also significant differences between two treatments (TD, SD1), where treatment TD outperformed treatment SD1 by (38.6)%. The results also showed significant differences in the efficiency of irrigation water use, where treatment SD2 significantly outperformed treatments (TD, SD1) by (111.8, 52.8)% respectively. The results of the analysis of variance (ANOVA) at the significance level of 5% showed highly significant differences in yield between the types of surface and subsurface drip irrigation pipes, The results of the analysis of variance (ANOVA) at the significance level of 5% showed highly significant differences in yield between the types of surface and subsurface drip irrigation pipes, There werenot significant differences between two treatments at distance 140 cm, where treatment SD1 outperformed treatment, it was worth 2944 kg/ha.The results also showed significant differences in the efficiency of irrigation water use, where treatment SD2 significantly outperformed treatments (TD, SD1) by (3.6, 23.4)% (3.6, 23.4)%% respectively.
Keywords: Subsurface drip irrigation, surface drip irrigation, Cotton(G. hirsutum. L), Yield, IWUE.
Full paper in Arabic: pdf