Assertion (A): Farmers sometimes burn stubble in the fields after harvest.

Reason (R): Burning stubble is the best way to increase nitrogen content in the soil.

(1) Both A and R are true, and R is the correct explanation
(2) Both A and R are true, but R is not the correct explanation
(3) A is true, R is false
(4) A is false, R is true

Assertion A is true as farmers do burn stubble after harvest. However, Reason R is false since burning stubble does not increase nitrogen content in the soil. Therefore, the correct choice is (3) A is true, R is false.
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Answered by Anonymous | 2025-07-04

The assertion (A) states that farmers sometimes burn stubble in the fields after harvest. The reason (R) provided is that burning stubble is the best way to increase nitrogen content in the soil.

Assertion (A) is true : Farmers often burn stubble, which are the remaining stalks and plant matter left in the fields after harvesting crops like rice, wheat, or maize. This practice is commonly seen in various agricultural regions around the world, particularly in parts of Asia and North America.

Reason (R) is false : Burning stubble is not considered the best way to increase nitrogen content in the soil. Although the process of burning does release some nutrients back into the soil, it is not an efficient or sustainable method to enrich soil fertility, especially for nitrogen. In fact, burning stubble can lead to the loss of soil organic matter, reduce soil fertility over time, and cause air pollution due to the release of carbon dioxide and other harmful gases.


Instead, there are more effective and environmentally-friendly alternatives for managing stubble, such as using it for composting, mulching, or plowing it back into the soil, which can help increase organic matter and enhance soil fertility.
Based on this explanation, the correct choice is (3) A is true, R is false .

Answered by BenjaminOwenLewis | 2025-07-06