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CropTec Show: Ammonium nitrate delivers extra wheat yield over urea

Straight 34.5 per cent N produced an extra 0.4t/ha (0.16t/acre) of milling wheat over crops using a urea fertiliser as their only source of nitrogen in 2017 according to new trials results announced by CF Fertilisers.


Abby   Kellett

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Abby   Kellett
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The trials showed ammonium nitrate (AN) outperformed urea with the extra margin over fertiliser costs at optimum application rates worth an extra £46/ha (£18/acre), said trials manager, Dr Mike Armstrong.

 

“There was a significant yield advantage in favour of AN across all plots in the trial. Even where urea was used as an early application and then followed by AN, there was a 0.25t/ha drop in yield compared with crops given all their Nitrogen as AN.


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