Transplanting roots are selected from the group consisting of indole acetic acid and naphthalene acetic acid, and the concentration is 1000-2000ppm. It is mainly used for cutting and transplanting roots of cabbage, Chinese cabbage and other vegetables, and quickly cutting vegetables, leeks and other vegetables. Dipping is generally 15 minutes. Promote the use of gibberellin to increase production. Different crops have different concentrations. Spinach sprays the whole plant with 20ppm solution to promote leaf hypertrophy at 4-6 leaves; celery has 50-100ppm sprayed shoots and leaves at 15-20 days before harvest, each separated by 10 days. Stalks and tender fibers less; melons grow to about 11cm with 20-80ppm deep liquid spray baby melon, accelerating the body to promote the expansion. Bao Hua Bao fruit selection of 2,4-DAO. Mainly used in sheds. The concentration is: 15-25ppm for tomato, 20-30ppm for zucchini, eggplant, and pepper. In the operation, the concentration of the liquid is required to be accurate, red pigment is added in the liquid to ensure that the silk flower is not heavy and does not leak; when the temperature is low, the high limit concentration is used, and when the temperature is high, the concentration is just lower limit. Stagnant promotes strong use of chlormequat. In greenhouses and open-air seedlings in the open season, chlormeson 250-300 ppm is used as seedbed soil treatment, 15 kg of solution per 100 square meters, and 600-1000 ppm of CCC solution is sprayed at 50 kg per mu in the seedling stage. Evoked females to use ethephon. Cucumbers were sprayed with 20-50ppm ethephon solution to induce the increase of female flowers in 2-4 true leaves; tomatoes were soaked in 2000-3000ppm solution for 1 hour in the early stage of coloring, and 5-7 days in advance. Distance transportation sales. Storage quality choose 2,4-d. Chinese cabbage is sprayed with 2,4-d anti-dropping substance 50ppm solution 3-7 days before harvest. It is appropriate to wet out the outer leaves to prevent detachment; cabbage is sprayed with 100ppm 2,4-d sodium salt solution 7 days before harvest. Extend the chilled leaves for 90 days without leaving the outer leaves. Cauliflower (cauliflower) is sprayed with 100 ppm 2,4-d sodium salt solution on the outer leaves of cauliflower (not sprayed onto the cauliflower) 3-5 days before harvest to prolong the time it takes for the outer leaves to protect the cauliflower.