Gce Model Questions Vol1 2021 Agricultural Science Question 29

Practice objective / multiple choice question 29 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.

Gce Model Questions Vol1 2021 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 29 GCE_MODEL_QUESTIONS_VOL1 • 2021 • AGRICULTURAL_SCIENCE • objective

A maize yield model relates total yield per hectare (kg) to plant density d (plants per 100 m²) by the quadratic equation \( Y = 1200d - 30d^{2} \). Determine the plant density that maximises yield and calculate the maximum yield per hectare.

Answer Options

A. 20 plants per 100 m²; maximum yield = 10 800 kg ha⁻¹
Correct Answer B. 20 plants per 100 m²; maximum yield = 12 000 kg ha⁻¹
C. 15 plants per 100 m²; maximum yield = 11 250 kg ha⁻¹
D. 25 plants per 100 m²; maximum yield = 13 125 kg ha⁻¹
Correct Answer
B
Correct Option:
20 plants per 100 m²; maximum yield = 12 000 kg ha⁻¹

About This Question

This is Gce Model Questions Vol1 2021 Agricultural Science Question 29. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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