Jujube trees have a low rate of fruit set, and poor management is prone to flowering and less results. Jujube germination is late, and flowering and fruit setting are concentrated in summer. Therefore, if you want to obtain high yield and stable yield, you must scientifically manage it according to the biological characteristics of jujube trees in summer. Based on the experience summarized in the production, the technical points are now introduced as follows. 1. Pruning: Entering the peak of jujube growth in mid-June, the pruning does not stimulate the main bud to germinate. Through pruning, it can adjust the distribution of nutrients, reduce the drop and fruit, and promote fruit development. Shuzhi: In the spring and summer seasons, the jujubes are germinated on the jujube, and the long branches of the jujube roots. If there is no use value, the base should be removed when the branches are not lignified to concentrate nutrients and promote fruit set. Topping: The main bud grows quickly after the date of jujube. If you want to use it for shaping, it will be short-cut at 1/3 of the length of jujube in mid-June, and control its length to concentrate nutrition, improve fruit set rate and improve fruit. quality. 2, flowering hormone: spray 5-10 mg / L 2,4-D solution at the beginning of the flower, with 0.3% borax in the flowering period to increase the germination rate of pollen. After spraying, the fruit setting rate of jujube trees can be significantly improved. 3, fertilizer management: jujube germination, leaf expansion and flowering to consume a lot of nutrients, so in mid-May, urea should be applied to supplement the growth of foliage and ammonia, 500-year-old tree per plant about 500 grams. August is the fruit expansion period, so in the beginning of August, I will catch another fat. This time, the compound fertilizer rich in nitrogen, phosphorus and potassium was used, and the amount of the 5-year-old tree was 1000 grams per plant. After each fertilization, it is necessary to turn over and water to promote the effect of fertilizer. 4, pest control: in the middle and late June, spray 25% chlorfenapyr No. 3 2000 times liquid or 1% avermectin 400 times liquid or imidacloprid 2000 times liquid to prevent jujube lines, peach small heartworm, jujube armyworm, jujube Ruler, spray again 1 day later. In the first half of July, spray 50% methyl thiophanate 1000 times solution or 50% bacteriostatic powder 600 times solution to prevent jujube rust. The branches with jujube madness are removed from the base. Adult Diaper,Thick Disposable Diapers,Wholesale Disposable Incontinence Diaper,Underwear With Dermadry Honghu Danielle Sanitary Material Co., Ltd. , https://www.daniellecn.com