Urean / UAN

Urean/UAN is a ammonium nitrate-urea solution. The urea and ammonium has to be transformed to nitrate before plants can up take the nitrogen.

 

Important notices for application of Urean/UAN in arable crops

• Apply on dry crops and only when a wax layer has formed
• Do not use with high temperatures and sunshine or when the temperature is below zero
• Use low pressure and large droplets when applying
• Use minimal 150 l/ha when applying in combination with crop protection
• Use when mixing with water keep at least a ratio of 1:3 or better 1:4 (Urean/UAN : water)
• In cereals, sugar beets and especially oilseed between the third day after sowing and the three-leaf, six-leaf especially the four-leaf stadium no urean/UAN application

 

Product data Urean/UAN

 

N-efficiency

Plants can up take nitrate directly while urea and ammonium partially have to be transformed into nitrate via reactions in the soil. The rate of this process depends on soil moisture and soil temperature.

 

Alteration of urea in ammonium-N (NH4-N)

 

Conversion N to Nutramon and Urean/UAN

Conversion Urean/UAN 30%N to Nutramon