Question

Why do farmers sometimes plough the soil deeply

Answer 1

Farmers plough their fields deeply mainly to loosen the soil though the roots can easily penetrate through the soil.

But there are other reasons also for ploughing the field.

Ploughing the soil takes the nutrients to the upper surface of the soil.

The weeds that are grown in the fields are destroyed through ploughing.

Thus the soil becomes fertile and it can be used to cultivate, easily.