Potash Potash fertilizer Potassium full name. With potassium as the main nutrient fertilizers, plants dry weight of potassium usually accounts for 0.2% to 4.1%, second only nitrogen. Potassium in plant growth and development, more than 60 kinds of enzymes involved in the activation of the system, photosynthesis, Assimilate transport, carbohydrate metabolism and protein synthesis and other processes. Existing domestic potash production capacity mainly in Golmud, Qinghai and Xinjiang Lop Nur region, the effect of a large potash; enhance the resistance of plants to make potassium crop of soluble amino acids and monosaccharides reduction increased cellulose cell wall thickening; potassium in the crop Cumulative roots produce osmotic pressure gradient can enhance water absorption; potassium can make crop stomatal closure to prevent water loss during drought and water shortage. So potassium can enhance crop disease, cold, drought, lodging and salt resistance. Adjust sugar fruits; improve product quality and increase crop protein content of food crops, fat and palmitic acid content oilseeds, potato starch and sugar crops and sugar content; increasing fiber crops and cotton fiber length, strength, fineness acid ratio, increase the amount of vitamin C; fruits and vegetables to improve the shape, size, color and flavor, to enhance its storability.