Red Seal Landscape Horticulturist Practice Exam

What is a key benefit of using cover crops in vegetable gardening?

1. They attract more pests

2. They improve soil health, reduce erosion, and suppress weeds

3. They speed up plant growth dramatically

4. They eliminate the need for fertilizers

The correct answer is: They improve soil health, reduce erosion, and suppress weeds

Using cover crops in vegetable gardening provides several advantages, among which improving soil health, reducing erosion, and suppressing weeds are paramount. Cover crops, such as clover, rye, or vetch, play a significant role in enhancing the soil structure over time. Their roots help break up compacted soil, facilitating better water infiltration and air circulation. Additionally, these crops contribute organic matter to the soil when they decompose, which enriches the nutrient content and promotes a thriving microbial community essential for plant health. This organic matter also aids in moisture retention, which can be beneficial during dry periods. Furthermore, by covering the soil, these crops significantly reduce erosion from wind and water, which is particularly important in areas prone to soil loss. Cover crops also outcompete weeds for sunlight and nutrients, minimizing the need for chemical herbicides and reducing labor costs associated with weed management. In comparison, the other options do not accurately represent the key benefits of cover crops. They do not attract more pests; rather, they can help in attracting beneficial insects. While they may contribute to improved growth conditions, they do not significantly speed up plant growth dramatically, and while they can reduce reliance on fertilizers, they do not entirely eliminate the need for them, especially regarding specific nutrient