What are the primary characteristics of sandy soils?

Sandy soils are primarily characterized by their good drainage due to the larger particle size and larger spaces between them, which allows water to pass through quickly. This drainage capability means that sandy soils tend to dry out faster than other soil types. Additionally, they typically have low nutrient retention, as the coarse particles do not hold onto nutrients effectively, leading to leaching during rainfall or irrigation events. Rapid warming is another characteristic of sandy soils, as their larger particles absorb heat much more quickly compared to finer-textured soils. This property can lead to quicker plant growth in warmer conditions but may also expose plants to rapid drying if irrigation is not managed appropriately.

In contrast, the other characteristics mentioned in the other options do not align with the properties typically associated with sandy soils. High moisture retention, high nutrient retention, compactness, high acidity, and slow drainage are more relevant to other soil types, such as clay or loam soils, rather than sandy soils.