Today, the majority of farmers pay particular attention to liquid nitrogen fertilizers. In the Ukrainian market, they are available in several forms:
- Ammonia water;
- Urea-ammonium nitrate solution (UAN);
- Anhydrous ammonia;
- Liquid complex fertilizers.
Among these, UAN stands out as the most promising in crop production because it is highly effective in addressing nutrient deficiencies, prevents plant diseases, and ensures higher yields. Furthermore, UAN has the highest nitrogen content among liquid fertilizers.
While urea-ammonium nitrate has many advantages, it also comes with certain storage challenges. Below, we’ll discuss how to properly store UAN.
Flexible Tanks: A Modern Solution
Due to their relative novelty, flexible tanks are not yet as widely used in Ukraine as more traditional metal or plastic tanks. As a result, many questions arise about what types of liquids can be safely stored in these tanks and what substances are unsuitable. Let’s address these questions and clear up any doubts or misconceptions.
How to Store Urea-Ammonium Nitrate Solution?
The storage of nitrogen fertilizers requires special consideration due to their high aggressiveness. Flexible tanks must not only withstand external factors but also remain chemically inert when in contact with UAN.
If alloy or carbon steel tanks are used, they must have tightly sealed lids. Without proper sealing, the pH of the UAN solution will decrease over time, leading to corrosion of the tank.
To minimize the risks associated with UAN-32 storage, it’s crucial to follow specific requirements for steel tanks and those made of other materials. Failing to do so may result in damage to equipment used for applying the fertilizer.
Types of UAN Tanks and Their Advantages
Depending on the material, UAN storage tanks can be classified into three types:
- Metal tanks – Suitable for long-term stationary storage, they are resistant to environmental factors, vandal-proof, and available in sizes ranging from 10 to 80 m³. However, new metal tanks are costly, and used tanks pose corrosion risks.
- Plastic tanks – These are non-reactive with fertilizers but require regular maintenance to ensure longevity.
- Flexible PVC tanks – A versatile solution for storing, transporting, and dispensing UAN.
Benefits of Flexible PVC Tanks
Flexible PVC tanks offer the following advantages:
- Compactness and lightweight – Easy to transport and set up.
- No foundation required for installation.
- Chemical inertness – No reaction with UAN.
- Protection from sunlight – Prevents UV penetration.
- Temperature stability – Resistant to both high and low temperatures.
- Durability – Made from polymer materials for extended service life.
- Cost efficiency – A 60 m³ PVC tank costs approximately 84,000 UAH, significantly less than metal or plastic alternatives.
Choosing the Right UAN Tank
The tank’s volume is a key consideration when selecting a flexible storage solution for UAN:
- For small farms, plastic tanks with a capacity of up to 20 m³ are ideal.
- For large-scale agricultural operations, metal tanks are suitable, but only if they are new and made of stainless steel to ensure structural integrity and longevity.
- Flexible tanks are optimal for large volumes and long-term use. They are available in capacities ranging from 10 to 500 m³ and can be transported even by a passenger car (a 60 m³ tank weighs only 135 kg).
Why Choose Flexible Tanks?
Flexible tanks are gradually replacing outdated methods of storing liquid fertilizers in Europe. They are now becoming a top choice among Ukrainian farmers due to their practicality and affordability.
To purchase a flexible UAN tank, contact a manufacturer who guarantees durability and quality. Flexsol has established a strong reputation in the Ukrainian market, with its tanks tested and approved by hundreds of farmers and successfully used in numerous agricultural enterprises.
Smart savings start with Flexsol tanks. Feel free to reach out with any questions—we’re here to help!