Limus ® raises performance to the level of ammonium nitrate
Limus ® outperforms all other urease inhibitors
NT26 project
Efficacy
As part of the wide-ranging DEFRA funded NT26 project, the performance of the urease inhibitor, NBPT (one of the active ingredients in Limus ® ) was evaluated as an alternative to ammonium nitrate (AN). The project concluded that granular urea plus NBPT matched AN for performance in winter cereals, according to average fgures taken from 10 locations.
As the only urease inhibitor with two active ingredients, Limus ® more effectively minimises ammonia losses, ensuring greater availability for crops and higher yields.
ADAS results
BASF results
Relative yield increase (%) of Limus ® vs. NBPT
Relative yield increase (%) of Limus ® vs. NBPT
Relative yield increase (%) of Limus ® vs. AN
ADAS results
The six ADAS trials reinforced the fndings from the NT26 project, showing a similar yield performance of Limus ® protected granular urea to that of ammonium nitrate. Limus ® raises the performance of urea to the same level as ammonium nitrate by minimising the nitrogen losses from ammonia. In these trials, at the rate of 260kg/ha N rate, Limus ® protected granular urea actually outperformed ammonium nitrate by an average of 1.5%, increasing yields by 0.14t/ha.
103%
102.2%
+1.5%
101.5%
+3%
+2.2%
100%
100%
100%
Urea + NBPT
Urea + Limus ®
Urea/UAN + NBPT
Urea/UAN + Limus ®
AN
Urea + Limus ®
Source: ADAS/BASF, UK, winter wheat, n=6, 260kg/ha N in 3 application splits
Source: BASF, range of crops, n=107
Source: ADAS/BASF, UK, winter wheat, n=6, 260kg/ha N in 3 application splits
Relative yield increase (%) of Limus ® vs. AN/CAN
Storage stability
BASF results
Across 74 BASF trials, Limus ® raised the yield performance of granular urea to the level of ammonium nitrate and calcium ammonium nitrate. These equivalent yields highlight that provided ammonia losses are minimised, urea is as reliable a source of nitrogen as ammonium nitrate.
The stability of urease inhibitors when added to urea can be limited. Limus ® contains our BASF patented polymer technology, providing longer a.i. stability versus generic NBPT and 2-NPT formulations. Even at 20°C Limus ® is stable for more than 12 months, giving confdence that even if purchased a year in advance, Limus ® will still work effectively.
+0.3%
100.3%
100%
Storage stability on urea 20°C, closed bag
AN/CAN
Urea + Limus ®
100
Source: BASF, range of crops, n=74
Limus ®
80
NBPT
60
2-NPT
40
20
0
0
6
12
Storage time (months)
Source: BASF
12
13
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