Question 1
A farmer wants to apply a recommended fertilizer dose of 120 kg Nitrogen per hectare to a paddy field. If urea containing 46% Nitrogen is the only available N fertilizer, how much urea (in kg) is required per hectare? (Round to the nearest whole number)
Correct Answer:
261 kg
Question 2
Which of the following describes the 'Critical Period of Weed Competition' in crop cultivation?
Correct Answer:
The span of crop growth during which weed presence causes the maximum reduction in yield
Question 3
In dryland agriculture, what is the primary distinction between 'Dry Farming' and 'Dryland Farming' based on annual rainfall?
Correct Answer:
Dry farming receives < 750 mm, whereas dryland farming receives 750 mm to 1150 mm
Question 4
Calculate the land equivalent ratio (LER) for an intercropping system of maize and cowpea. The intercrop yields are: Maize = 3.0 t/ha, Cowpea = 0.8 t/ha. The sole crop yields are: Maize = 4.0 t/ha, Cowpea = 1.2 t/ha.
Correct Answer:
1.42
Question 5
Under the National Programme for Organic Production (NPOP) guidelines, what is the standard conversion period for annual agricultural crops to be certified as organic?
Correct Answer:
24 months
Question 1
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About this Exam

Prepare with the OPSC AAO Practice Questions - OPSC Assistant Agriculture Officer Exam practice quiz. This question bank includes 100 questions covering soil, crops, primary, nitrogen, and cultivation. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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OPSC AAO Practice Questions - OPSC Assistant Agriculture Officer Exam

This practice set contains 100 questions from the matching question bank and focuses on soil, crops, primary, nitrogen, and cultivation. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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