Document Type : Research Paper
Shahid Chamran University of Ahvaz
shahid chamran university of ahvaz
Considering the effect of irrigating with Salman Farsi agro-industry sugar cane drain water farms on physical and hydraulic properties of soil, this study was conducted with a random scheme framework at irrigation and drainage research in farm of Shahid Chamran University of Ahvaz. Irrigation treatments were included mixing of Salman Farsi agro-industry sugar cane drain water farms and Karun River water: (1) mixing 75% Karun River water +25% sugar cane drain water farm, (2) mixing 50% Karun River water + 50% sugar cane drain water farm, (3) mixing 25% Karun River water + 75% sugar cane drain water farm, and (4) control treatment (100% Karun River water). The irrigation treatments resulting from mixing Salman Farsi agro-industry sugar cane drain water farms and Karun River water in three repetitions and control treatment (100% Karun River water) was selected in one repetition. Physical and hydraulic properties of soil including bulk density, total porosity, field capacity moisture and permanent wilting point moisture, saturated hydraulic conductivity and ultimate infiltration rate were measured in three depths (0-30, 30-60, and 60-90 cm) and during four months. Results demonstrated that increasing the salinity of irrigation water significantly increased bulk density, field capacity moisture, and permanent wilting point moisture, about 7.82%, 25.26% and 23.41% respectively (P<0.05), and significantly decreased saturated hydraulic conductivity, ultimate infiltration rate, and total prosity of soil about 22.23%, 29.02% and 9.9% respectively (P<0.05). High sodium levels in drain water used in this study, cause damage to thesoil structure and distribution of soil particles.