Authors : Raad Jawad Mohammed Kadhim and Thamer Hussien Jaber
Abstract: This study was conducted through the harvesting period (April and May) of 2018 to suggest an equation for wheat and another for barley which explain the relationship of the yield for wheat and barley with the soil salinity in Thi-Qar Governorate soils which be sited in the South of Iraq to utilize these equations for expecting the yield of mentioned crops if the salinity of soil be known. The twenty three fields that had been cultivated by wheat were selected and twenty four fields were selected for barley to get from them the samples of soil for determining the electrical conductivity of soil paste extracts and to identify the amount of the yield for wheat and barley. The four kinds of equations be drown (Exponential, linear, logarithmic and polynomial equations) to select from them the equations with high coefficient of correlation (r) to depend on them for expecting the yield of selected crops when the soil salinity be known.
Raad Jawad Mohammed Kadhim and Thamer Hussien Jaber, 2019. Mathematical Model for Relation of Wheat and Barley Yield and Salinity in Thi-Qar Governorate Soils, Iraq. Journal of Engineering and Applied Sciences, 14: 6030-6035.