The effective use of potassium nitrate fertilizer is determined according to the growth periods and characteristics of plant species. For example, for vegetables such as tomatoes, peppers, eggplant, melons, watermelons, and squash, the most suitable time is the 15-20 day process from the period when fruits start to grow until before harvest. Legumes such as beans, chickpeas, and lentils can also receive fertilizer within the same period.
Strawberry and banana plants can benefit after fruit set has started. Fruit trees such as cherries, sour cherries, peaches, apricots, apples, pears, quinces, and olives can also benefit from potassium nitrate fertilizer in the best way during the same period. The most suitable time for fertilization in corn and sunflower plants starts from the period when the plant height is 40-50 cm. For root vegetables such as potatoes, sugar beets, and carrots, the fertilization period continues from the period when the tubers start to swell until harvest time. The best fertilization time for wheat, barley, and rye plants is the process from the jointing stage to the milk stage. For the cotton plant, it includes a period continuing from the beginning of square formation until harvest time.