عنوان مقاله [English]
Irrigation scheduling is an important step in optimizing agricultural water use management and has been recommended in the previousstudies. Since smart models play an important role in irrigation planning on the water use management of on farms, it has this aimed study that is investigated the effects of such models on sugar beet water consumption at Zarghan-Fars Agricultural Research Station from 2018 to 2019. Here was conducted with three treatments and three replications in a randomized complete block design, in which treatments were included three approach of scheduling irrigation such as: intelligent system (T1), database of crop water requriments is that obtained from calimetological station (T2), and farmers traditional management (T3).Their replicates were covered 6 lines of Arta variant sugerbeet with 8 meter length that irrigated via the Tipe irrigation system. The results reveal that the amount water for irrigation in T1 and T2 treatments were about 27% and 15% less than traditional irrigation management, respectively, whereas the average daily water use in T1 treatment was about 7was that varied from 2 to 10 mm/day during different stages of growth, such that was lowest water use compared to the other treatments.The accumulation annually water use in treatments of 8946, 10194 and 12130 (m3/ha) respectively for T1, T2 and T3 showed a 27% of the saving water in the intelligent system comparing with the control treatment, in which it was included two parts such as 10% due to decreasing the irrigation time and about 17% due to improving the discharge setting in the experimental plots.The results of research has been shown that the duration of irrigation and the input of distribution network would controled by using the intelligent system for estimating and planning irrigation.The tracked measurements of amount water use and soil moisture for each irrigation caused the improving the distribution system management resulting in decreasing one hour of irrigation time in T1 compared to the other treatments. In T1, T2 and T3 treatments, Crop water productivity (CWP) based on the root yield were 3.46, 2.25 and 2.7 kg per cubic meter, and based on sugar content were 0.69.0.44 and 0.38 kg sugar per cubic meter.