Neco Model Questions Vol1 2018 Agricultural Science Question 44

Practice objective / multiple choice question 44 from the 2018 Neco Model Questions Vol1 Agricultural Science examination.

Neco Model Questions Vol1 2018 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 44 NECO_MODEL_QUESTIONS_VOL1 • 2018 • AGRICULTURAL_SCIENCE • objective

Soil test results for a \(5\)-ha field (plough layer \(15\) cm, bulk density \(1.3\) g cm⁻³) show available nutrients: N = \(12\) mg kg⁻¹, P = \(8\) mg kg⁻¹, K = \(150\) mg kg⁻¹. The target levels are N = \(20\) mg kg⁻¹, P = \(15\) mg kg⁻¹, K = \(200\) mg kg⁻¹. Fertiliser sources are urea (46 % N), single superphosphate (20 % P₂O₅, where P = 0.44 P₂O₅), and muriate of potash (60 % K₂O, where K = 0.83 K₂O). Assuming each nutrient is supplied solely by its respective fertiliser, calculate the amount (kg) of urea, single superphosphate and muriate of potash required, and give the total fertiliser weight to be applied.

Answer Options

Correct Answer A. Urea ≈ 170 kg, SSP ≈ 776 kg, Muriate of potash ≈ 980 kg; total ≈ 1 926 kg
B. Urea ≈ 165 kg, SSP ≈ 820 kg, Muriate of potash ≈ 970 kg; total ≈ 1 955 kg
C. Urea ≈ 180 kg, SSP ≈ 750 kg, Muriate of potash ≈ 1 000 kg; total ≈ 1 930 kg
D. Urea ≈ 150 kg, SSP ≈ 800 kg, Muriate of potash ≈ 950 kg; total ≈ 1 900 kg
Correct Answer
A
Correct Option:
Urea ≈ 170 kg, SSP ≈ 776 kg, Muriate of potash ≈ 980 kg; total ≈ 1 926 kg

About This Question

This is Neco Model Questions Vol1 2018 Agricultural Science Question 44. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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