GRANULAR UREA & PRILLED

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Urea 

It is White Crystalline solid containing 46% Nitrogen (N). It has the highest nitrogen content of any solid nitrogen fertilizer. It can be applied directly to the soil while using normal spreading equipment. Most of today‘s urea is manufactured as granules. They are harder, larger, and more resistant to moisture. Therefore, it has become a more commonly used material for fertilizer blends. Additionally, it is an important raw material for many manufacturers of other products and is a major raw material for melamine.

The physical specification is non–clotted 100% free from harmful substances; free floating, treated with anti–caking treatment. It is free from impurities, sand, dust and certified non–radioactive. PH value 8.0 – 8.5, floatability/water sinks and mixes.

Usage:

More than 90% of world industrial production of Urea is destined for use as a nitrogen–release fertilizer. It has the highest nitrogen content of all sold nitrogen content of all solid nitrogenous fertilizers in common use. Therefore, it has the lowest transportation costs per unit of nitrogen nutrition. The standard crop–nutrient rating is 46–0–0. The most common impurity of synthetic urea is Biuret, which impairs plant growth.

It is usually spread at rates of between 40 and 300 Kg./HA but rates vary. Smaller applications incur lower losses due to leaching. During summer, it is often spread just before or during rain to minimize losses from volatilization. A process wherein nitrogen is lost to the atmosphere as ammonia gas).

Because of the high nitrogen concentration, it is very important to achieve an even spread. The application equipment must be correctly calibrated and properly used.

For more prilled urea vs granular ureainformation, please contact us. We will provide professional answers.

It is chemically the same as Granular Urea. It’s the most popular and economical of all nitrogenous fertilizers being used worldwide. The 46% nitrogen content is an ideal source of nitrogen for agriculture. It needs to be applied several times during the growing season, unlike phosphate and potassium (K) fertilizers, which usually require a single application. It is an organic compound because it contains carbon. Prilled Urea is commonly used in agriculture as nitrogen rich filler.

Standard Specifications of Granular & Prilled Urea:

Standard Specifications Of Granular & Prilled Urea

Pros and cons of granular and liquid fertilizers

Theoretically, plants can’t tell the difference between nutrients supplied by the granular and liquid fertilizers, but they both have advantages depending on the farming application.

There are several ways to categorize fertilizers. One logical way to look at them is as “granulars” and “liquids.” For the purposes of this comparison, anhydrous ammonia (technically a liquid) will not be considered.

Dry fertilizers are generally incorporated into granules. Fertilizer blends can be created by mixing individual granular fertilizer of known analysis (e.g., 46-0-0, 18-46-0 and 0-0-60) in the proper ratio to create the desired blend. Dry fertilizers can be ground applied as a broadcast; applied at planting as a band, often placed 2 inches to the side and 2 inches below the seed (2-by-2 placement); or applied as sidedress and cultivated shallowly into the soil. When farmers have access to custom blended granular fertilizer, they can fine-tune their crop fertility program and potentially improve crop production efficiency. If all goes well, this can result in more profitable crop production.

Liquid fertilizers have greatly increased in popularity in recent years. They can be either ground applied or foliar applied. Liquids can be broadcast, used in a band application at planting and as mid-season sidedress. When foliar applied, the plant nutrients are absorbed through the leaves and are more readily available for plant use than if ground applied. However, the availability of foliar applied nutrients is short-lived and not continuous for the rest of the growing season. Foliar applications are a good way to correct mid-season deficiencies or supplement soil applied nutrients.

Although there is no difference in the total amount of nutrients supplied by either granular or liquid fertilizer for a specified plant nutrient application, there are differences:

• Spatial: The distance from plant roots to fertilizer nutrients. Less mobile nutrients like phosphorus can’t get closer than the individual granule containing them. In liquid form, they are more mobile in the soil water solution.
• Salt content: Granular fertilizers can be “hot.” Roots can steer away from a band of granular fertilizer that contains high levels of nitrogen and potassium. Liquids are often preferred for “starter.”
• Consistency: The nutrient content is identical in every drop of liquid fertilizer, while granulars have individual nutrient components in each granule.
• Equipment: The cost of converting equipment to handle liquid fertilizer can be an obstacle.

Here is a short list of advantages of both fertilizer types.

Liquid

• Ease of handling and application (once set up)
• Ease of blending
• Uniformity of application
• Starter and in-season application
• Blend with crop protection products

Granular

• Cheaper in bulk
• Easier to store (does not “settle out” over time or “salt out” in cold weather)
• More efficient for heavy pre-plant applications
• Slow-release options (polymer-coated urea)

Michigan State University Extension does not necessarily recommend one type of fertilizer over another. However, farmers should consider costs, ease and convenience of application, and potential plant response when making fertilizer decisions.

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