c. Bone Meal
KNO3 is utilized in various agricultural settings, from open-field cropping to greenhouse production. Farmers often apply it to enhance the quality of fruits and vegetables, as potassium is known to improve taste, color, and shelf life. For instance, studies have shown that tomatoes and cucumbers grown with KNO3 exhibit higher levels of sweetness and firmness.
kno3 fertilizer

You may find it added to many food products, such as: