Which of the following is a benefit of encouraging deeper fibrous turfgrass roots?

Encouraging deeper fibrous turfgrass roots primarily leads to a reduction in water needs. Deep rooting systems allow the grass to access moisture and nutrients from deeper soil layers, which can enhance drought resilience and reduce the frequency of irrigation required. This not only conserves water but also promotes healthier grass, as a well-established root system contributes to overall plant vigor and adaptability to changing environmental conditions.

The ability of deeper roots to scavenge for moisture also means that the turfgrass can survive longer periods without water, making it more sustainable, especially in areas where water scarcity is a concern. This characteristic is particularly important in maintaining healthy lawns and turf in both residential and commercial landscapes, helping to support overall ecological balance in the area.

In contrast, the other options do not contribute positively in the same way. Increased weed competition might occur in a healthy turf, but it is not a direct benefit of deeper roots. Shallow growth is undesirable as it would indicate weaker root systems that are more susceptible to stress. Lastly, soil fertility typically does not decrease due to deeper rooting; rather, a robust root system can help improve nutrient uptake, ultimately enhancing soil fertility over time.