Which type of soil is most susceptible to leaching?

Sandy, permeable soil is most susceptible to leaching primarily due to its large particle size and high porosity, which allow water to move through the soil quickly. In sandy soils, there is significant space between the grains that facilitates the rapid downward movement of water. This means that any dissolved nutrients or chemicals present in the water can easily be carried away from the root zone of plants, leading to potential nutrient loss and contamination of groundwater.

The fast drainage characteristics of sandy soil make it less effective at holding onto moisture and nutrients compared to other soil types, which can complicate agricultural practices if the appropriate measures for fertilization and irrigation are not taken. Understanding the susceptibility of sandy soils to leaching is crucial for managing fertilizers and pesticides effectively to minimize environmental impact.