For a soil classified as S or LS with a water holding capacity of 150, what is the most suitable moisture range?

A soil classified as S (sandy) or LS (loamy sand) and with a water holding capacity of 150 typically indicates a soil that has relatively low moisture retention capabilities. Sandy soils drain quickly and do not hold much water due to larger particle sizes and larger pore spaces.

The most suitable moisture range for a soil with such characteristics is 7.5 to medium (med). This range aligns with the natural drainage and moisture retention properties of sandy soils, suggesting an optimal level of moisture that balances the need for adequate water without oversaturation, which could lead to reduced aeration or root problems. Maintaining moisture within this range ensures that plants can effectively take up water, while still accommodating the rapid drainage associated with sandy soils.

Higher moisture content ranges might lead to conditions where excess water could disrupt root health, while lower ranges could lead to drought stress for plants. Thus, maintaining moisture within the 7.5 to medium range is crucial for ensuring the health and productivity of plants grown in sandy or loamy sandy soils.