Which of the following is a benefit of composting in horticulture?

Improving soil structure and fertility is a crucial benefit of composting in horticulture. When organic materials such as kitchen scraps, yard waste, and other biodegradable substances decompose, they create compost that enriches the soil. This enhancement results from the addition of nutrients that support plant growth, such as nitrogen, phosphorus, and potassium, in a slow-release format that plants can easily absorb.

Additionally, compost improves soil structure by increasing its aeration, drainage, and moisture retention capabilities. This is particularly advantageous in sandy or clay soils, where modifications can lead to healthier root development and better overall plant performance. The microbial activity stimulated by compost also enhances the soil ecosystem, fostering beneficial organisms that further contribute to soil health.

The incorrect options highlight aspects that do not represent the benefits of composting. While compost does require moisture to break down properly, it should not be excessive, as too much water can lead to anaerobic conditions. Additionally, composting actually enhances nutrient availability rather than decreasing it, making it a positive practice for gardeners looking to nourish their plants. Finally, while some composts can attract pests if not managed properly, when used correctly, composting can contribute to a healthier garden ecosystem that discourages pest problems.