ammonium nitrate fertilizer percent nitrogen
For example, if your lawn requires 1 1/2 pounds of nitrogen per 500 square feet and the ammonium nitrate is a 34-0-0 blend, which provides 34 pounds of nitrogen per 100 pounds, you must apply approximately 22 pounds of fertilizer to every 500 square feet. straight nitrogen fertilizer typically contains 34-percent ammonium nitrate, but the amount may vary in fertilizer blends containing other plant nutrients or with combined forms of nitrogen. To compare apples to apples, we first need to calculate the cost of nitrogen in a fertilizer product. Each fertilizer has an analysis that tells you the percent nitrogen (N) - phosphorus (P 2 O 5) - and potassium (K 2 O) by weight. Urea is 46-0-0, and ammonium nitrate is 34-0-0.Both of these products contain nothing but nitrogen, but the nitrogen is at different percentages.Urea contains 920 actual pounds of nitrogen per ton, and ammonium nitrate contains 680 actual pounds of nitrogen by ton (2,000 x 46% = 920 and 2,000 x 34% = 680).rea is 46-0-0, and ammonium nitrate is 34-0-0. Both of these products contain nothing but nitrogen, but the nitrogen is at different percentages. Urea contains 920 actual pounds of nitrogen per ton, and ammonium nitrate contains 680 actual pounds of nitrogen by ton (2,000 x 46% = 920 and 2,000 x 34% = 680). The chemical compound ammonium nitrate, the nitrate salt of ammonium, has the chemical formula N H 4 N O 3, simplified to N 2 H 4 O 3. It is a white crystalline solid and is highly soluble in water.mmonium nitrate has a critical relative humidity of 59.4%, above which it will absorb moisture from the atmosphere. Therefore, it is important to store ammonium nitrate in a tightly sealed container. Otherwise, it can coalesce into a large, solid mass. Ammonium nitrate can absorb enough moisture to liquefy. The combination form, also called UAN, is a uniform, dry product of ammonium nitrate and urea. Its nitrogen content ranges from about 28 to 32 percent.When used alone, ammonium nitrate contains about 34 percent nitrogen. Both the single and combination forms are easily soluble in water and more readily available for plant uptake than urea alone.he combination form, also called UAN, is a uniform, dry product of ammonium nitrate and urea. Its nitrogen content ranges from about 28 to 32 percent. Nitrogen form Plants have the ability to take up several chemical forms of nitrogen. The most common are: ammonium (NH 4+), which has a positive charge; nitrate (NO 3-), which has a negative charge; and urea, ((NH 2)2CO), which has no charge.Many commercial fertilizer mixes contain a combination of all three nitrogen forms.When these nitrogen forms are added to the growing medium natural processes can take place that convert one form to another (Figure 1). Bacteria can convert urea to ammonium or ammonium to nitrate.igure 2. Change in pH of the root-zone of rose plants provided with three different percentages of ammonium. 3 Table 1. Some commercially available fertilizers, their percentage of total nitrogen as nitrate or ammonium plus urea, and potential acidity or basicity a. Urea (46-0-0) is a dry nitrogen material produced by reacting ammonia with carbon dioxide. Of the commonly used dry fertilizers, urea contains the highest percentage of nitrogen and is rapidly replacing ammonium nitrate.When surface applied, urea is the most readily volatilized of the dry nitrogen materials. After application to the soil, urea will hydrolyze (combine with water) to form ammonium carbonate.he reacted material is concentrated, prilled and coated to prevent caking. In ammonium nitrate, one-half of the nitrogen is in the nitrate form, and the other half is in the ammonium form. Ammonium nitrate is the preferred form of nitrogen fertilizer when it is to be applied on the soil surface and not incorporated. A straight nitrogen fertilizer typically contains 34-percent ammonium nitrate, but the amount may vary in fertilizer blends containing other plant nutrients or with combined forms of nitrogen. straight nitrogen fertilizer typically contains 34-percent ammonium nitrate, but the amount may vary in fertilizer blends containing other plant nutrients or with combined forms of nitrogen. Ammonium nitrate is formulated by combining anhydrous ammonia and nitric acid in a very corrosive manufacturing climate. Solution liquid fertilizers (28 to 32 percent nitrogen) are composed of one-half urea and one-half ammonium nitrate.It's pretty hard to apply a nitrogen fertilizer formulation that doesn't have natural gas in its manufacturing process.n some cases, the price has gone up 50 percent or more, but why is it increasing? The price of nitrogen fertilizers is directly related to the price of natural gas (methane). Manufacturing 1 ton of anhydrous ammonia fertilizer requires 33,500 cubic feet of natural gas. U.S. nitrogen and potash supplies largely depend on imports. More than 50 percent of nitrogen (N) and 85 percent of potash (K 2 O) supply was from imports in fertilizer year (July 1 to June 30) 2011. (See the topic page Fertilizer Use and Markets for market shares of U.S. domestically produced fertilizers).ore than 50 percent of nitrogen (N) and 85 percent of potash (K 2 O) supply was from imports in fertilizer year (July 1 to June 30) 2011. Ammonium nitrate is an important fertilizer with the NPK rating 34-0-0 (34% nitrogen).mmonium nitrate has a critical relative humidity of 59.4%, above which it will absorb moisture from the atmosphere. Therefore, it is important to store ammonium nitrate in a tightly sealed container. Otherwise, it can coalesce into a large, solid mass. Ammonium nitrate can absorb enough moisture to liquefy.
28 to 32 percent.