Why does soil need air for vegetable plants to grow?

In the context of vegetable farming, air is essential for the healthy growth of crop plants and the maintenance of a productive soil environment for two primary reasons:

• Support for Beneficial Organisms: Soil is a complex biological environment teeming with life, including various microbes that play a critical role in nutrient cycling. These beneficial organisms require oxygen to function effectively, as they are responsible for breaking down organic matter and making essential nutrients available for plant uptake.12
• Plant Root Health: Proper soil aeration is vital for the development of plant roots. When soil is well-drained and aerated, it allows for the necessary gas exchange that supports root respiration and overall plant development. Conversely, waterlogged or compacted soil restricts the movement of air, which can retard plant growth and hinder the biological processes that sustain soil fertility.23

Practices such as proper drainage and plowing are used in vegetable farming to improve soil texture and ensure that air can adequately enter the soil profile.2