The first is to avoid individual application. The ideal method of application is to apply organic fertilizer first, and then apply urea, superphosphate, and potassium chloride to a reasonable formulation. The second is that it cannot be mixed with ammonium bicarbonate. The combination of ammonium bicarbonate and urea will greatly reduce the rate of conversion of urea to ammonia, which can easily lead to loss of urea and loss of volatiles. The third is not to spread on the surface. Urea is applied to the surface of the earth. At room temperature, it takes 4 to 5 days for transformation to be absorbed by crops. Most of the nitrogen is volatilized during the ammonium process, and the utilization rate is only about 30%. Fourth, it is not immediately possible to apply water after applying urea. Urea is an amide nitrogen fertilizer that must be converted to ammonia nitrogen before it can be used by crops. If you apply water immediately after application or before heavy rain, urea will be lost. Black Sesame Paste,Pure Black Sesame Seeds Paste,Healthy Black Sesame Paste,Pure Black Sesame Paste Chinese Seasoning (Shandong) Trading Co.,Ltd , https://www.zt-trading.com