More than 40% of agricultural soil in the world is seriously degraded, and between 55 and 85% have NPK deficiency; therefore, fertilizing would improve:
Adding fertilizers and micro-nutrients to the soil could increase contents, composition, and the bio-availability of vitamins and essential micro-nutrients.
Nutritional deficiencies could limit crops. With no fertilizers, there would be 40-60% less food.
Adding fertilizers and micro-nutrients could positively affect plant and food product attributes such as color, shape, size, texture, taste, sweetness, acidity, scent, and post-harvest life.
Crops fertilizing reduces the risk of human diseases.