Which of the following methods results in the loss of soil fertility?Select an answerACrop rotationBJhum cultivationCBroadcastingDField fallow

The method that results in the loss of soil fertility among the options provided is Jhum cultivation.

Here's why:

A) Crop rotation: This method actually helps in maintaining soil fertility. Different crops are grown in a sequence over a period of time on the same land. This prevents the soil from losing specific nutrients and also helps in controlling pests and diseases.

B) Jhum cultivation: Also known as slash and burn agriculture, this method involves cutting down and burning of trees and plants in a forest or woodland to create a field called a Jhum. The ashes of the burnt trees are mixed with soil which increases the short-term fertility of the soil. However, in the long run, this method leads to loss of soil fertility and is therefore not sustainable.

C) Broadcasting: This is a method of sowing seeds by scattering them in the field rather than planting in rows. This method does not directly lead to loss of soil fertility.

D) Field fallow: This is a method where a field is left without sowing any crops for a certain period of time to regain its fertility. This method helps in maintaining soil fertility rather than losing it.