Gce Model Questions Vol1 2019 Agricultural Science Question 9
Practice objective / multiple choice question 9 from the 2019 Gce Model Questions Vol1 Agricultural Science examination.
A soil test indicates that the available phosphorus in a field is 12\,mg\,kg\(^{-1}\). The target level is 30\,mg\,kg\(^{-1}\). The soil bulk density is 1.3\,g\,cm\(^{-3}\), the plough depth is 15\,cm and the field area is 2\,ha. A fertilizer containing 20\% P\(_2\)O\(_5\) (by weight) is to be applied. Given that P\(_2\)O\(_5\) is 43.66\% elemental phosphorus, calculate the amount of this fertilizer (in kilograms) required to raise the soil phosphorus to the target level. Give your answer to the nearest kilogram.
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About This Question
This is Gce Model Questions Vol1 2019 Agricultural Science Question 9. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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