Application of plant growth regulator ethephon
Ethephon is also called a test spirit. In recent years, it has been continuously applied and promoted in production. The following eight applications of ethephon are introduced as follows:    100-150 ml of ethephon per acre is 30 kg of water, sprayed in the cotton field of late-maturing and ripening about 20 days before the frost. Can increase the pre-frost flower by about 70%. It can also receive better results when the unbleached cotton peach is sprayed in vitro.    At the end of the corn leaf, 40% of ethephon 50 ml per acre is 15 kg of water, and spraying on the corn field can reduce the plant height by about 25 cm, the stem section becomes thicker, the double ear rate increases, the lodging resistance is enhanced, and the baldness is increased. The tip is reduced, the lateral roots are increased, the tassel neck is short, and the maturity period can be 3-5 days earlier.    The lyophilized aqueous solution of 750-1000 ml/L is used to spray the persimmon with 2000 ml/L of ethephon solution after spraying or picking in the persimmon yellow ripening stage, and the temperature can be removed at 22-26 ° C for 2-4 days. astringent.    The fruit in the color-changing period is taken and placed in a 2000-4000 ml/L ethephon solution for one minute, and ripened in an environment of 20-25 ° C, and turned red ripe for 2-3 days. If most of the fruit is about to mature and the plant is about to be pulled, the plant can be sprayed with a 1000 ml/L ethephon solution for centralized marketing.    When the watermelon grows to a fixed period, the surface of the melon can be smeared with a 200-300 ml/L ethephon solution in a sand cloth, and the melon can mature 5-7 days earlier. Soluble solids in juice increased by 1-3%, increasing sugar content and sweetness.    Spraying 200-300 ml / liter of ethephon aqueous solution in the second leaf stage of cucumber, spraying once every other week, can effectively increase the female flower breeding rate and increase the yield of cucumber.    Spraying 100-200 ml/L of ethephon solution in 2-3 slices of zucchini can effectively increase the fruit setting rate of female flowers.    Spraying the leaves and leaves of the chrysanthemum with a concentration of 1000 ml / liter of ethephon can effectively inhibit the internode elongation and flower bud development of chrysanthemum.
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First, the application of ethephon on cotton.
Second, the application of ethephon on corn.
Third, the application of ethephon on persimmon.
Fourth, the application of ethephon on tomato.
5. The application of ethephon on watermelon.
Sixth, the application of ethephon on cucumber.
7. Application of ethephon on zucchini.
Eight, the application of ethephon on flowers.
When spraying the plant growth regulator ethephon, be sure to pay attention to: no heavy spray, no leakage.
