What is an advantage of using UAN 28% compared to UAN 32%?

Using UAN (Urea Ammonium Nitrate) 28% compared to UAN 32% has the advantage that it can be applied with herbicides. This property is important for farmers and agronomists who aim to manage weeds effectively while also providing crops with necessary nutrients.

The key reason behind this advantage lies in the chemical composition and the ratio of the nitrogen components in these formulations. A lower concentration of nitrogen in UAN 28% allows for a more compatible mix with certain herbicides, reducing the risk of phytotoxicity, which can happen when herbicides and higher nitrogen concentrations react negatively with crops. This compatibility ensures that crops receive both the nutrients from the fertilizer and effective weed control without harming the plants.

This aspect makes UAN 28% a preferred choice when integrated crop management practices require simultaneous application of nutrients and herbicides, enhancing overall crop health and productivity. While other options might suggest stability, nitrogen content, or corrosiveness, the ability to mix safely with herbicides is particularly significant in practical agricultural applications, allowing for more efficient farming practices.