Waec Model Questions Vol1 2019 Agricultural Science Question 43
Practice objective / multiple choice question 43 from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
A soil test shows available phosphorus of 12 mg kg⁻¹. The target level for optimum yam yield is 20 mg kg⁻¹. The plow layer has a bulk density of 1.3 g cm⁻³ and a depth of 15 cm. Single superphosphate contains 20 % P₂O₅ by weight, and 1 kg P₂O₅ raises the soil P level by 2.3 mg kg⁻¹ in this layer. How many kilograms of superphosphate fertilizer should be applied per hectare to reach the target phosphorus level? (Round to one decimal place.)
Answer Options
About This Question
This is Waec Model Questions Vol1 2019 Agricultural Science Question 43. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.