Gce Model Questions Vol1 2017 Agricultural Science Question 25
Practice objective / multiple choice question 25 from the 2017 Gce Model Questions Vol1 Agricultural Science examination.
A wheat farmer aims to produce \(5\) t ha\(^{-1}\) of grain. Wheat removes \(20\) kg N per tonne of grain harvested. The soil test shows an available nitrogen supply of \(80\) kg N ha\(^{-1}\). To compensate for expected nitrogen losses, the recommended fertilizer application is to supply \(120\%\) of the nitrogen removed by the crop.\n\n(a) How many kilograms of nitrogen must be supplied by fertilizer per hectare?\n(b) If the fertilizer used is urea, which contains \(46\%\) nitrogen by weight, how many kilograms of urea should be applied per hectare? Round the answer to the nearest kilogram.
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About This Question
This is Gce Model Questions Vol1 2017 Agricultural Science Question 25. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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