Which major nutrient is known for promoting strong root systems and increasing disease resistance?

Phosphorus is known for its crucial role in promoting strong root systems and enhancing disease resistance in plants. This nutrient is essential for several key functions within plants, including energy transfer, photosynthesis, and the formation of DNA and RNA. Strong root development allows plants to access more water and nutrients, which is vital for their growth and overall health.

Additionally, phosphorus contributes to the health of a plant's immune system, enabling it to better resist diseases and stress factors. This combination of robust root systems and increased disease resistance makes phosphorus an indispensable nutrient for plant development.