You may have noticed these on the labels of some. Ammonium Sulfate and Urea are both quick release element that are rich in Nitrogen. These are ideal if you want to achieve rapid and fast growth. But each also has its own pros and cons based on what you want to achieve.
Urea is the byproduct of Ammonia and is a water-soluble component that is free from heavy metal and abundant in Nitrogen. It has an NPK ratio of 46-0-0. As soon as it is applied, the microbes in the soil convert into Urea and into Nitrogen. To avoid the loss of valuable gas when Urea transforms to Ammonium Bicarbonate before it finally transforms into Nitrogen, it is crucial that you mix soil with Urea enricher. This type is very affordable and can be safely mixed with other types.
Ammonium Sulfate, on the other hand, supplies sulfur to soil that has low pH. This is a water-soluble product that has 21 percent nitrogen and 24 percent sulfur. The type of nitrogen available in this formulation is instantly available for the roots. It will not easily melt when stored in areas with high humidity. The downside of this solution is that it may increase the level of acidity of the soil which could inadvertently affect most types of grass found in many lawns.