I. Clearing wild wild jujube in forests grows on sunny slopes and semi-slope slopes. Firstly, the jujube jungle is based on the principles of staying strong, staying strong, going to stay small, staying old and staying new, and staying in thin places. The thinning was done at a row spacing of 1.5-2 meters and the wild assemblages and weeds around the retaining plants were removed. Second, select the fine varieties of jujube growth should choose early, medium-maturing varieties, suitable for local growing varieties. Third, change the access time jujube changed jujube, generally from the beginning of spring in March, - can be grafted to Liqiu before and after, up to 100 days. Fourth, change the connection method is mainly used splicing, inserting the skin, cutting the abdomen, buds and so on. The first three kinds of grafting must be made of plastic film in order to avoid water loss in the scion. In addition, the grafting and cutting noodles should be appropriately lengthened to increase the contact surface and improve the survival rate of grafting. 5. After the management has been changed and survived, it is necessary to erase the sprouting buds on the rootstock in time to promote the growth of new strains. At the same time, the brackets must be tied to prevent windbreaks. Sixth, dry pruning jujube changed jujube, high growth is generally about 1 meter, in the dormant period of dry pruning. When the head of the trunk is trimmed, the first two branches under the cut will be cut off from the base to promote the new jujube head. For the second branch on the stem, when it grows 40 centimeters from the ground, the second branch in different directions should be shortened according to a spacing of 20-30 centimeters, so as to trigger a new main branch. In the second year, two main branches are cultivated and one main branch is cultivated in the third year. VII. Enlarging a hole in a place where conditions permit, grafting a large jujube tree that survives should expand the hole, deepen the soil, and build a large hole to increase the nutritional area of ​​the jujube tree. VIII. Increasing the fruit setting rate Open up the main branch or side branch to increase the lighting surface. The jujube tree blossomed during the flowering period (ringing). When the jujube bloomed 30%, the main trunk was opened and the mouth width was 0.3-0.4 cm. Sprinkle 15-20 mg/kg gibberellin during flowering to increase fruit setting rate, usually 5-7 days and spray twice. Nine, pest control jujube disease: pay attention to the selection of pest-free rootstocks and scion, remove the grafted area around the diseased jujube and jujube single plant; peach small borealis: in early July to late August, spray every 15 days 1 70% peach Xiaoling 2000 times or speed kill Ding 2000 times, spraying a total of 2-3 times. SHANGHAI ROCATTI BIOTECHNOLOGY Co., Ltd is a leading exporter and supplier of medical equipment in China. We are not only manufacturer of medical equipment but also we are professional on providing one-stop solution of hospital project, clinic project, Education University, laboratory, government tender as well as distributors. With more than 10 years of experience, our products have been exported to more than 100 countries and have obtained good reputations because of our competitive price, high quality products and excellent service. Hospital Bed,Hospital Bed Automatic,Abs Hospital Bed,Manual Hospital Bed With Wheels Shanghai Rocatti Biotechnology Co.,Ltd , https://www.ljdmedical.com
