What is one consequence of poor water holding capacity in soil?

• A. Overgrowth of weeds
• B. Increased drought stress for plants
• C. Higher levels of soil compaction
• D. Enhanced nutrient availability

Answer: (B)

When soil has a poor water holding capacity, it cannot retain sufficient moisture needed by plants. This leads to increased drought stress, especially during dry periods when rainfall is limited or infrequent. Plants rely on soil moisture for essential functions, including nutrient uptake and photosynthesis. Without adequate water, plants may struggle to maintain their health, potentially leading to wilting, stunted growth, or even death.

While overgrowth of weeds can occur in various conditions, it is not directly a consequence of soil's water holding capacity. Similarly, higher levels of soil compaction may affect moisture retention but are more closely related to soil structure and management practices rather than the inherent capacity of soil to hold water. Enhanced nutrient availability is generally associated with well-aerated and moisture-retaining soils; poor water holding capacity likely results in nutrient leaching rather than an increase in availability. Thus, the clear relationship between inadequate moisture supply and increased drought stress highlights the critical impact of water holding capacity on plant health.