What is the significance of 'allelopathy' in agriculture? MCQ with Answer and Explanation

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What is the significance of 'allelopathy' in agriculture?

A. Growth promotion

B. Improved pollination

C. Nitrogen fixation

D. Chemical interaction between plants (inhibitory)

Answer: Option D

Solution (By JKExamLibrary)

Allelopathy refers to the release of chemicals by one plant that inhibit the growth of neighboring plants, which can be used for weed suppression.

This question belongs to: Geography GK Agriculture in India

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Question #1 Report Error

Which state leads in maize production?

A. Rajasthan

B. Madhya Pradesh

C. Karnataka / Andhra

D. Punjab

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Correct Answer: Option C

Explanation:
Southern and central states are major producers.

This question belongs to: Geography GK Agriculture in India

Question #2 Report Error

Intensive subsistence farming is characteristic of:

A. Australia

B. USA

C. India (densely populated areas)

D. Canada

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Correct Answer: Option C

Explanation:
High labor input on small holdings for family consumption.

This question belongs to: Geography GK Agriculture in India

Question #3 Report Error

In which type of soil is red soil primarily found?

A. In the northern plains

B. In the Deccan plateau

C. In the arid and semi-arid regions

D. In the eastern coastal plains

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Correct Answer: Option C

Explanation:
Red soil is found in arid and semi-arid regions of Rajasthan, Gujarat, and parts of Tamil Nadu, Karnataka, and Andhra Pradesh. It is formed by weathering of ancient crystalline rocks.

This question belongs to: Geography GK Agriculture in India

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