Question

How is tillage or ploughing helpful to crops?

Answer 1

Ploughing or tillage is helpful to crops in the following ways:
1) It allows air to enter the soil. This in turn helps the roots of the plants to breathe.
2) This air is also needed by the microorganisms present in the soil to carry out the decomposition of organic matter which adds nutrients to the soil.
3) Unwanted plants gets uprooted.
4) Pests are exposed and consequently, killed by predators or the heat of the Sun.