Effects of different saline-alkali land amendments on soil physicochemical properties and alfalfa growth and yield Effect of arbuscular mycorrhizal fungi inoculation on tobacco growth and arsenic pollution risk from phosphogypsum addition Effects of CaCO3 and Gypsum on leaching of phosphorus and dissolved organic carbon in soil Effect of phosphogypsum on nutrient balance and membrane defense enzyme of broomcorn in strongly acidic soils Influence of Processing Method on the Solubility of Calcium from the Mongolian Medicine Zhuangxi Comparative study on remedy ways of saline-alkali grassland in Songnen Plain Effects of phosphogypsum extracts on seed physiology and seedlings growth of pea The Decocting Effect on Crystal Form and Ca/S Value of Gypsum Fibrosum Preliminary study on mechanism of phosphorus leaching in cumulic cinnamon soil