Amendment of Saline–Alkaline Soil with Flue-Gas Desulfurization Gypsum in the Yinchuan Plain, Northwest China

The effective and safe use of FGD gypsum in agricultural land is still debated some countries even though its effectiveness soil management has been reported many studies. Thus, the changes levels salinity, alkalinity, crop yield, other physicochemical properties different types crops after reclamation planting with over four years are evaluated this paper. main aim paper to review effects six treatment technologies addressing salinity sodicity production soils, a focus on basic theory, key technologies, industrialized applications. This also shows that conditions can be improved yields increased by using alone or combination humic acid fertilizer. plus K–Zn–Mn fertilizer yield rice 135%. In alkaline, salinized, secondary salinized combined organic chemical 21.2% 60.4%, sunflower 2.4% 23.6%, medlar 18.81% 20.78%, respectively. application salt tolerance salt-tolerant plants. Combined drainage, laser field levelling tillage decreased more than 63.76% oil up 96.96%. study provides convincing evidence benefits treatments reclaim saline–alkali soils. It suggested comprehensive measures should taken improve saline–alkaline soil.