Hanan Almhemid*(1), Faraj Naoum(1), Abdulghani Alkhaldi(2) and Ahmad Aljomaa(2)
(1). Faculty of Agricultural Engineering, Univ. of Aleppo, Aleppo, Syria.
(2). Cotton Research Administration, General Commission for Scientific Agricultural Research.
(*Corresponding author: Hanan Almhemid, Email: HananAlmhemid@gmail.com).
Received:24/09/2023 Accepted: 7/12/2023
Abstract:
The research aims to study the effect of subsurface drip irrigation system on some productivity indicators and irrigation Water use efficiency for cotton crop (Aleppo 118 varity) with different depths and spacing of the irrigation pipe. The research was carried out during 2022 agricultural season in Aleppo Governorate at Tal Hadya Cotton Research Station. (Cotton Research Administration- General Commission for Scientific Agricultural Research), which is located within the second stabilization zone. The experiment was designed according to a split-plot design.The effect of two spacing (70 and 140) cm between drip pipes at three different depths as (15, 25 and 35) cm was studied.The results of variance analysis (ANOVA) at 5% level of significance for the yield trait showed high significant differences, as the average cotton yield for the first spacing (70 cm) was 5574 kg/ha and for the second spacing (140 cm) 2862 kg/ha.The results showed that there were significant differences in the water productivity, as the average irrigation water productivity for the first spacing (70 cm) was 0.824 kg/m3/h and for the second spacing (140 cm) 1.276 kg/m3/h. The results also showed that the first spacing treatment (70 cm) with the second depth (25 cm) was significantly superior to the rest of the treatments in the seed cotton yield.
Keywords: Subsurface drip irrigation, Cotton, Yield, IWUE.
Full Paper in Arabic: pdf