Healthy soil consists of elements we don’t typically think of as soil at all. In fact, one of the most critical aspects of soil is the space between the particles.
Soil space results from a process called aggregation. Solid matter will aggregate under the right conditions, forming space between the masses. This allows air and water to fill this area. Rain or irrigation water percolates through the soil, and aggregate spaces hold it like a storage tank. You can store more water and irrigate less frequently when you have more space