Neco Model Questions Vol1 2024 Agricultural Science Question 23
Practice objective / multiple choice question 23 from the 2024 Neco Model Questions Vol1 Agricultural Science examination.
Soil tests show that the available phosphorus (P) in a field is 8 mg kg⁻¹, while the agronomic target is 20 mg kg⁻¹. One kilogram of single superphosphate (SSP) contains 20 % P₂O₅ by weight. To raise the soil P level, 1 mg kg⁻¹ of available P corresponds to an application of 2 kg ha⁻¹ of P₂O₅. Assuming a 15 % loss of applied P₂O₅ due to fixation, calculate the amount of SSP (kg ha⁻¹) that should be applied to meet the target.
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This is Neco Model Questions Vol1 2024 Agricultural Science Question 23. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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