Effects of Saline Water Irrigation on Soil Salinity and Crop Yield

To study the suitable strategies of saline water irrigation for crops,a field experiment was conducted in Jinghai County of Tianjin City.Data were collected to analyze the effects of saline water irrigation on salt dynamics and crop yield.The results showed that with saline water irrigation,the application of soil amendment increased soil permeability coefficient,reduced soil pH value and EC(electrical conductivity of soil solution),and decreased the salt content.No salt accumulation was found in 0—60 cm soil during the experiment.Meanwhile,the amendment increased wheat shoot number,grain number per shoot of maize and crop yields significantly.Using saline water with degree of mineralization at 3.7 g/L for irrigation with soil amendment is the recommended irrigation mode for crops in this region.