Our company targets on the alkaline soil type along the coastal area , R & D for saline alkali soil amelioration of special organic fertilizer,the PH of the organic manure is less than or equal to 6, and the organic matter > 50%, total nutrient N+P2O5+K2O > 6%, and alkaline soil at the same time increases the content of soil organic matter,and it improvesthe soil permeability so as to improve the soil environment to raise the amount of soil microbial species and quantity,to foster the utilization rate of the fertilizer,and to promote crop growth.