What factor contributes to soil's ability to support plant growth?

Soil fertility is a critical factor contributing to the ability of soil to support plant growth. It refers to the soil's capacity to provide essential nutrients to plants, including macronutrients like nitrogen, phosphorus, and potassium, as well as micronutrients required for various metabolic processes. Fertile soil not only contains these nutrients but also maintains a balance of pH levels and organic matter, which enhance nutrient availability and retention.

In addition to providing nutrients, fertile soil has good structure, which promotes healthy root development and water retention. The presence of beneficial microorganisms and organic matter in fertile soils also improves soil health, enabling better nutrient cycling and overall soil quality. Hence, the level of soil fertility directly impacts plant growth and productivity, making it a fundamental aspect of agriscience.