Soaking, seed dressing: It can stimulate seed germination and promote seedling growth, making its stalk stout and upright. Soaking: 200 grams of potassium dihydrogen phosphate per 100 kilograms of seed, 50 kilograms of water, soaking for 12 to 16 hours, remove and dry. Seed dressing: 200 grams of potassium dihydrogen phosphate per 100 kilograms of seeds, 10 kilograms of water, mix well with the seeds.

Roots: Before planting flowers and trees, 0.4-0.5 kg of potassium dihydrogen phosphate per acre is used. Mix well with dry fine soil, add water to make pulp, and plant roots during transplanting. For example, after the daffodils have been in the water for a week, the narcissus balls will give off young leaves and the fibrous roots of the narcissus will have grown. The roots can be soaked with 0.1% potassium dihydrogen phosphate solution every week for 1 day to promote leaf width and floral scent.

Foliar spray fertilizer: woody flowers such as jasmine, gardenia, azaleas, etc., in the growing season often use 0.3% potassium dihydrogen phosphate solution sprayed leaves, can make it strong branches and leaves, flowers and more colorful. Herbal flowers such as a string of red, petunia, dahlia, etc., spraying two or three times 0.3% potassium dihydrogen phosphate solution during budding stage, can make its flowers large and colorful, bright color.

Preparation of nutrient solution: 3 g of potassium dihydrogen phosphate, 5 g of urea, 1 g of calcium sulfate, 0.5 g of magnesium sulfate, 0.001 g of zinc sulfate, 0.0003 g of iron sulfate, 0.0001 g of copper sulfate, 0.003 g of manganese sulfate, and 0.002 g of boric acid. Water 5 kg, dissolved into nutrient solution. The potted peanuts are poured once a week for a long time, and each dose may be determined according to the size of the plant. For example, a flower with an inner diameter of 20 cm in the flower pot is about 100 grams each time, and the amount of flowers used for the hibiscus should be reduced slightly. During the winter or dormant period, it is poured once every half month or 1 month.