If properly applied, urea and fertilizers containing urea are excellent sources of nitrogen for crop production.
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After application to the soil, urea undergoes chemical changes and ammonium (NH4 +) ions form. Soil moisture determines how rapidly this conversion takes place.
When an urea particle dissolves, the area around it becomes a zone of high pH and ammonia concentration. This zone can be quite toxic for a few hours. The free ammonia that has formed can kill the seed and seedling roots within this zone.
Fortunately, this toxic zone becomes neutralized in most soils as the ammonia converts to ammonium. Usually it's just a few days before plants can effectively use the nitrogen.
Although urea imparts an alkaline reaction when first applied to the soil, the net effect is to produce an acid reaction.
Urea or materials containing urea should, in general, be broadcast and immediately incorporated into the soil.
If applying urea-based fertilizer in a band, separate it from the seed by at least 2 inches of soil. Under no circumstances should urea or urea-based fertilizer be seed-placed with corn.
With small grains, you can generally apply 10 pounds of nitrogen as urea with the grain drill at seeding time, even under dry conditions. Under good moisture conditions, you can apply 20 pounds of nitrogen as urea with the grain drill.
Research from North Dakota State University indicates that, under dry conditions, urea can reduce wheat stands more than 50 percent (Table 5). This was for urea applied with a grain drill in a 6-inch spacing, at the rate of more than 20 pounds of nitrogen per acre.
University of Wisconsin research indicates that seed-placed urea with corn, even at low rates of nitrogen, is very toxic to the seed and greatly reduces yields (Table 6). However, when urea was side-placed as a 2-by-2-inch starter, researchers noted little, if any, damage (Table 7).
In Minnesota, good crop production usually requires an application of more than 20 pounds of nitrogen per acre. Farmers can avoid damage from urea by broadcasting most of the urea nitrogen fertilizer ahead of seeding. Data in Table 8 indicate that urea broadcast prior to seeding is equal to or more effective than similar ammonium nitrate treatments.
The key difference between prilled and granular urea is that prilled urea takes a little time to dissolve in water, whereas granular urea takes a lot of time to dissolve.
Prilled urea and granular urea are two types of solid nitrogen fertilizers that are used in agriculture. Prilled urea is a type of solid #nitrogen fertilizer that easily dissolves in water. Granular urea is a type of solid nitrogen fertilizer that comes in the form of granules. Prilled urea dissolves quickly in water. This is because prilled urea has a high dimensional consistency and a small size. However, granular urea is easier to handle and store.
What is Prilled Urea?
Prilled Urea is a type of solid nitrogen fertilizer that can easily dissolve in water. There are several uses of this type of urea due to its specific properties. We can manufacture this substance through the reaction between #ammonia and carbon dioxide. It is largely important for agricultural purposes and as a nitrogen-rich fertilizer. Prilled urea is also known as ice melt urea or de-icer urea.
Appearance of Prilled Urea Fertilizer
Contact us to discuss your requirements of prilled urea vs granular urea. Our experienced sales team can help you identify the options that best suit your needs.
The benefits of using prilled urea over other de-icing products include its non-corrosive nature, biodegradable property, and efficiency in very low temperatures such as -6 Celsius degrees. Moreover, it does not usually damage concrete, lawns, and shrubs of metals.
What is Granular Urea?
Granular urea is a type of solid nitrogen fertilizer that comes in the form of granules. Generally, this type of nitrogen fertilizer contains about 46% nitrogen. This substance is produced from ammonia and carbon dioxide. Typically, granular urea has the highest nitrogen content among solid nitrogen fertilizers.
Application of Granular Urea to Agricultural Fields
We can apply granular urea as it is. But sometimes, people add it after mixing it with #phosphate and potash fertilizers. Most often, granular urea can be seen as a part of the total nitrogen-phosphorous-potassium (NPK) plant food mix. Since it is a granular form of urea, we can apply it directly to the soil via conventional spreading equipment. We can say that this is the most common form of nitrogen fertilizer all around the world.
What is the Difference Between Prilled and Granular Urea?
Prilled urea and granular urea are two types of solid nitrogen fertilizers that are useful for agricultural purposes. The key difference between prilled and granular urea is that prilled urea takes a little time to dissolve in water, whereas granular urea takes a lot of time to dissolve. This is because prilled urea has a high dimensional consistency and a small size. Moreover, it is difficult to handle and store prilled urea due to its hygroscopic nature. However, it is comparatively easy to handle and store granular urea.
The below infographic presents the differences between prilled and granular urea in tabular form for side by side comparison.
PRILLED UREA VS GRANULAR UREA
Summary – Prilled vs Granular Urea
Prilled urea and granular urea are two types of solid nitrogen fertilizers. The key difference between prilled and granular urea is that prilled urea takes a little time to dissolve in water, whereas granular urea takes a lot of time to dissolve. Moreover, it is difficult to handle and store prilled urea due to its hygroscopic nature. However, it is comparatively easy to handle and store granular urea.
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