NOVELTY - Soil conditioner comprises 1-15 pts. wt. gypsum, 1-10 pts. wt. silicide, 0.5-5 pts. wt. plant fertilizer, 1-10 pts. wt. potassium compound fertilizer, 0.1-20 pts. wt. microelement fertilizer, 1-10 pts. wt. calcium fertilizer, 1-10 pts. wt. mineral, 0.5-5 pts. wt. biofertilizer and 100 pts. wt. compost containing organic compound, where the soil conditioner has 10-40% of water content and total organic material to nitrogen rate (OM/N) of 20-40.    USE - The soil conditioner is useful for salty land (claimed).    ADVANTAGE - The soil conditioner improves soil environment of salty land and stabilizes salty land, and has excellent permeability and water retention property.    DETAILED DESCRIPTION - Soil conditioner comprises 1-15 pts. wt. gypsum, 1-10 pts. wt. silicide, 0.5-5 pts. wt. plant fertilizer, 1-10 pts. wt. potassium compound fertilizer, 0.1-20 pts. wt. microelement fertilizer, 1-10 pts. wt. calcium fertilizer, 1-10 pts. wt. mineral, 0.5-5 pts. wt. biofertilizer and 100 pts. wt. compost containing organic compound, where the soil conditioner has 10-40% of water content and total organic material to nitrogen rate (OM/N) of 20-40, compost containing organic compound is produced by fermenting microorganism chosen from Bacillus pumilus, B.subtilis, B.licheniformis, and B.megaterium, adding the fermented material to vegetable organic material including cortex and sawdust and animal organic material including fowl droppings and butchery by-product, silicide is chosen from silicon dioxide (SiO2), calcium silicate (CaSiO3), calcium oxide-(CaO)-SiO2, potassium silicate (K2SiO3), Sodium silicate (Na2SiO3), and silicate fertilizer, the nitrogen compound fertilizer is chosen from ammonium sulfate, hydrochloric acid ammonium, element, ammonium nitrate, and lime nitrogen, the plant fertilizer is chosen from superphosphate of lime, double superphosphate, phosphoric acid ammonium, fused phosphate fertilizer, and calcined phosphate, the potassium compound fertilizer is chosen from potassium chloride, potassium sulfate, potassium nitrate, and potassium carbonate, the microelement fertilizer includes iron compound, aluminum compound, cupric compound and manganese, the calcium fertilizer is chosen from quicklime, calcium hydroxide, calcium carbonate, silicic acid lime, and dolomite, the mineral includes zeolite, bentonite, and vermiculite, and the biofertilizer is green algae including Chlamydomonas sp. and Chlorella sp, and blue green algae including Tolypothrix sp. and Anabaena sp.. An INDEPENDENT CLAIM is included for method for preparing the above-mentioned soil conditioner, which involves using the above-mentioned raw materials.