Neco Model Questions Vol1 2025 Agricultural Science Question 8

Practice objective / multiple choice question 8 from the 2025 Neco Model Questions Vol1 Agricultural Science examination.

Neco Model Questions Vol1 2025 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 8 NECO_MODEL_QUESTIONS_VOL1 • 2025 • AGRICULTURAL_SCIENCE • objective

A farmer intends to grow maize on \(2\) ha. Soil analysis shows the following available nutrients per hectare: nitrogen \(45\) kg, phosphorus \(12\) kg and potassium \(30\) kg. The recommended nutrient uptake for optimum yield is nitrogen \(120\) kg/ha, phosphorus \(60\) kg/ha and potassium \(80\) kg/ha. The farmer will use three fertilizers:\n- Urea containing \(46\)% N,\n- Single superphosphate (SSP) containing \(16\)% P\(_2\)O\(_5\) (elemental P = 0.44 × P\(_2\)O\(_5\)),\n- Muriate of potash (KCl) containing \(60\)% K\(_2\)O (elemental K = 0.83 × K\(_2\)O).\nCalculate the amount (kg) of each fertilizer that must be applied per hectare to meet the nutrient gaps exactly. Round each answer to the nearest kilogram.

Answer Options

Correct Answer A. Urea: 163 kg/ha; SSP: 682 kg/ha; KCl: 100 kg/ha
B. Urea: 150 kg/ha; SSP: 700 kg/ha; KCl: 110 kg/ha
C. Urea: 180 kg/ha; SSP: 650 kg/ha; KCl: 105 kg/ha
D. Urea: 170 kg/ha; SSP: 660 kg/ha; KCl: 95 kg/ha
Correct Answer
A
Correct Option:
Urea: 163 kg/ha; SSP: 682 kg/ha; KCl: 100 kg/ha

About This Question

This is Neco Model Questions Vol1 2025 Agricultural Science Question 8. It is one of the objective questions from the 2025 Neco 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.

Unlock Full Access Available for Android & Windows
Chat with Support