FERTILISER CALCULATIONS PRACTICE QUESTION 3 • Urea fertiliser (46% N) is costing K500.00/kg while CAN fertiliser (26%N) is costing K400.00/kg. A farmer has 2 hectares of maize. She needs to apply 60 kg of N per ha during top dressing and she can either use urea or CAN fertiliser. Using relevant calculations, convince the farmer that Urea is cheaper than CAN and should buy Urea?​