What is a common method to enhance soil nutrients using mineral products?

Using NPK fertilizers is a common method to enhance soil nutrients because these fertilizers provide three essential nutrients: nitrogen (N), phosphorus (P), and potassium (K). Each of these nutrients plays a vital role in plant growth. Nitrogen is crucial for healthy leaf and stem development, phosphorus supports root health and flower and fruit production, and potassium is important for overall plant function and disease resistance.

This method allows for targeted nutrient enhancement, as the specific ratios of N, P, and K can be adjusted based on the nutrient deficiencies of the soil or the specific growth requirements of the plants being cultivated. In contrast, options like leaf mulch and green manure do contribute organic matter and can improve soil health over time, but do not offer the immediate mineral nutrients that NPK fertilizers provide. Watering with salt solutions, on the other hand, can be harmful to plants and soil health rather than beneficial.