Gce Model Questions Vol1 2019 Agricultural Science Question 13
Practice objective / multiple choice question 13 from the 2019 Gce Model Questions Vol1 Agricultural Science examination.
A farmer intends to grow wheat on a 5 ha field. The recommended nitrogen (N) fertiliser rate is 120 kg ha⁻¹. A soil test shows the field already contains 30 kg ha⁻¹ of available N. The farmer can apply either urea (46 % N) costing £0.50 kg⁻¹ or ammonium nitrate (34 % N) costing £0.70 kg⁻¹. Regulations limit the total urea application to 100 kg ha⁻¹. Determine the quantities (kg) of urea and ammonium nitrate the farmer should apply to meet the required N level at minimum cost.
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About This Question
This is Gce Model Questions Vol1 2019 Agricultural Science Question 13. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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