نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
the current research aims to evaluate the ability of this model to simulate the yield, growth and water productivity of cotton under three irrigation water salinity (S1: 2, S2: 4 and S3: 6 dS.m-1) were investigated. To develop the results of this research, two cultivation dates (D1: March 15 and D2: March 25) and two cotton varieties (C1: Khurshid, C2: Golestan) were also considered. The research farm named L08-20 with an area of 25 hectares was located in the vicinity of the sugarcane industry of Mirza Khokhk Khan, Iran. The results showed that the AquaCrop model had an overestimation error (MBE>0) for simulating the yield, biomass and water productivity of both cotton varieties, but it had good accuracy (NRMSE<0.2) and good efficiency (d>0.99). Was. The accuracy of the AquaCrop model for simulating soil salinity was poor, so that the NRMSE value for three depths of 30, 60 and 90 cm was less than 0.3. Increasing the salinity of irrigation water caused a decrease in the accuracy of the AquaCrop model for simulating the vegetation in Khurshid variety, but ultimately, it did not have much effect on the decrease in the accuracy of the AquaCrop model for simulating both varieties. Changing the planting date did not make a difference in the results of cotton yield and growth simulation. Based on all the results, the AquaCrop model had the ability to simulate the yield and growth of cotton cultivars in different field managements, but it cannot be reliable for simulating soil salinity.
کلیدواژهها English
