Gce Model Questions Vol1 2021 Agricultural Science Question 50

Practice objective / multiple choice question 50 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.

Gce Model Questions Vol1 2021 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 50 GCE_MODEL_QUESTIONS_VOL1 • 2021 • AGRICULTURAL_SCIENCE • objective

A wheat field of 5 hectares is surveyed and 12 % of the plants show symptoms of rust. Each hectare contains 20 000 plants. Every infected plant reduces the yield of its hectare by 0.02 kg. The expected yield of a healthy hectare is 5 000 kg. The economic threshold for treatment is a loss of more than 5 % of the total field yield. Should the farmer treat the field? Show the calculation of the expected yield loss percentage and state the decision.

Answer Options

A. No, because the expected loss is 4.8 %, which is below the 5 % threshold.
Correct Answer B. No, because the expected loss is 0.96 %, which is below the 5 % threshold.
C. Yes, because the expected loss is 0.96 %, which exceeds the 5 % threshold.
D. Yes, because the expected loss is 6.4 %, which exceeds the 5 % threshold.
Correct Answer
B
Correct Option:
No, because the expected loss is 0.96 %, which is below the 5 % threshold.

About This Question

This is Gce Model Questions Vol1 2021 Agricultural Science Question 50. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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