نوع مقاله : مقاله پژوهشی
نویسندگان
1 Water Engineering Department, University of Mohaghegh Ardabili, Ardabil, Iran
2 Department of Water Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.
3 Soil Science and Engineering Department, University of Mohaghegh Ardabili, Ardabil, Iran
4 Horticulture cienceS Department, University of Mohaghegh Ardabili, Ardabil, Iran
5 گروه مهندسی آب دانشگاه محقق اردبیلی، اردبیل، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study was to assess the use of agricultural drainage water by mixing irrigation water and agricultural drainage water to examine the effects of the mixture on soil properties and the yield of tomatoes in Moghan Plain, Iran. The experimental design was completely random, conducted with three irrigation treatments and four replications for two years. The treatments were the control treatment ( irrigation water) (T0), 50% drainage water +50% irrigation water treatment (T1), and agricultural drainage water treatment (T2). The results showed that the treatments had significant differences (p≤0.05) in terms of the microbial population, basal respiration, and substrate-induced respiration. There were also significant differences among the treatments in terms of soil pH and EC (p≤0.01). While, the soil organic matter, yield, bulk density, and chlorophyll content of tomatoes showed no significant differences among the treatments. The treatments did not differ significantly in terms of the saturated hydraulic conductivity (Ks) in the first year, whereas the Ks for the drainage water treatment differed significantly (p≤0.05) in the second year. No significant differences were observed in the parameters of van Genuchten (θs, θr, and α) among the treatments. Whereas the statistical results showed that there was a significant difference (p≤0.01) in the parameters of van Genuchten (n) between T0 with T1 and T2 treatments while there was no significant difference between T1 and T2 treatments. It can be concluded that the use of drainage water negatively affected soil pH salinity, and biological properties but it did not decrease the plant yield
کلیدواژهها [English]
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